Merge branch 'master' of https://github.com/JellyTitan/qmk_firmware into sofle_pico

2024-11-24 20:32:58 +00:00 · 2023-12-14 11:30:31 -08:00 · 2023-12-14 11:30:31 -08:00 · a43c4088d1
commit a43c4088d1
parent 36bc366699 26b6ba7607
6214 changed files with 94155 additions and 238918 deletions
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@ -37,7 +37,7 @@ jobs:
        qmk --verbose generate-docs

    - name: Deploy
-      uses: JamesIves/github-pages-deploy-action@v4.4.3
+      uses: JamesIves/github-pages-deploy-action@v4.5.0
      with:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        BASE_BRANCH: master
--- a/.github/workflows/labeler.yml
+++ b/.github/workflows/labeler.yml
@ -12,7 +12,7 @@ jobs:
  triage:
    runs-on: ubuntu-latest
    steps:
-    - uses: actions/labeler@main
+    - uses: actions/labeler@v4
      with:
        repo-token: "${{ secrets.GITHUB_TOKEN }}"
        configuration-path: '.github/labeler.yml'
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@ -74,31 +74,10 @@ jobs:
        fi
        exit $exit_code

-    - name: Verify at most one added keyboard
+    - name: Verify keyboard aliases
      if: always()
      shell: 'bash {0}'
      run: |
        git reset --hard
        git clean -xfd
-
-        # Get the keyboard list and count for the target branch
-        git checkout -f ${{ github.base_ref }}
-        git pull --ff-only
-        QMK_KEYBOARDS_BASE=$(qmk list-keyboards)
-        QMK_KEYBOARDS_BASE_COUNT=$(qmk list-keyboards | wc -l)
-
-        # Get the keyboard list and count for the PR
-        git checkout -f ${{ github.head_ref }}
-        git merge --no-commit --squash ${{ github.base_ref }}
-        QMK_KEYBOARDS_PR=$(qmk list-keyboards)
-        QMK_KEYBOARDS_PR_COUNT=$(qmk list-keyboards | wc -l)
-
-        echo "::group::Keyboards changes in this PR"
-        diff -d -U 0 <(echo "$QMK_KEYBOARDS_BASE") <(echo "$QMK_KEYBOARDS_PR") | grep -vE '^(---|\+\+\+|@@)' | sed -e 's@^-@Removed: @g' -e 's@^+@  Added: @g'
-        echo "::endgroup::"
-
-        if [[ $QMK_KEYBOARDS_PR_COUNT -gt $(($QMK_KEYBOARDS_BASE_COUNT + 1)) ]]; then
-            echo "More than one keyboard added in this PR -- see the PR Checklist."
-            echo "::error::More than one keyboard added in this PR -- see the PR Checklist."
-            exit 1
-        fi
+        qmk ci-validate-aliases
--- a/.github/workflows/stale.yml
+++ b/.github/workflows/stale.yml
@ -3,6 +3,7 @@ name: 'Close stale issues and PRs'
 permissions:
  issues: write
  pull-requests: write
+  actions: write

 on:
  schedule:
@ -13,7 +14,7 @@ jobs:
  stale:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/stale@v8
+      - uses: actions/stale@main
        with:
          repo-token: ${{ secrets.GITHUB_TOKEN }}

--- a/.gitignore
+++ b/.gitignore
@ -108,5 +108,6 @@ compile_commands.json
 .clangd/
 .cache/

-# VIA(L) json files that don't belong in QMK repo
+# VIA(L) files that don't belong in QMK repo
 via*.json
+/keyboards/**/keymaps/vial/*
--- a/56
+++ b/56
@ -38,6 +38,11 @@ $(info QMK Firmware $(QMK_VERSION))
 endif
 endif

+# Try to determine userspace from qmk config, if set.
+ifeq ($(QMK_USERSPACE),)
+    QMK_USERSPACE = $(shell qmk config -ro user.overlay_dir | cut -d= -f2 | sed -e 's@^None$$@@g')
+endif
+
 # Determine which qmk cli to use
 QMK_BIN := qmk

@ -191,9 +196,20 @@ define PARSE_KEYBOARD
    KEYMAPS += $$(notdir $$(patsubst %/.,%,$$(wildcard $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_PATH_4)/keymaps/*/.)))
    KEYMAPS += $$(notdir $$(patsubst %/.,%,$$(wildcard $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_PATH_5)/keymaps/*/.)))

+    ifneq ($(QMK_USERSPACE),)
+        KEYMAPS += $$(notdir $$(patsubst %/.,%,$$(wildcard $(QMK_USERSPACE)/keyboards/$$(KEYBOARD_FOLDER_PATH_1)/keymaps/*/.)))
+        KEYMAPS += $$(notdir $$(patsubst %/.,%,$$(wildcard $(QMK_USERSPACE)/keyboards/$$(KEYBOARD_FOLDER_PATH_2)/keymaps/*/.)))
+        KEYMAPS += $$(notdir $$(patsubst %/.,%,$$(wildcard $(QMK_USERSPACE)/keyboards/$$(KEYBOARD_FOLDER_PATH_3)/keymaps/*/.)))
+        KEYMAPS += $$(notdir $$(patsubst %/.,%,$$(wildcard $(QMK_USERSPACE)/keyboards/$$(KEYBOARD_FOLDER_PATH_4)/keymaps/*/.)))
+        KEYMAPS += $$(notdir $$(patsubst %/.,%,$$(wildcard $(QMK_USERSPACE)/keyboards/$$(KEYBOARD_FOLDER_PATH_5)/keymaps/*/.)))
+    endif
+
    KEYBOARD_LAYOUTS := $(shell $(QMK_BIN) list-layouts --keyboard $1)
    LAYOUT_KEYMAPS :=
    $$(foreach LAYOUT,$$(KEYBOARD_LAYOUTS),$$(eval LAYOUT_KEYMAPS += $$(notdir $$(patsubst %/.,%,$$(wildcard $(ROOT_DIR)/layouts/*/$$(LAYOUT)/*/.)))))
+    ifneq ($(QMK_USERSPACE),)
+        $$(foreach LAYOUT,$$(KEYBOARD_LAYOUTS),$$(eval LAYOUT_KEYMAPS += $$(notdir $$(patsubst %/.,%,$$(wildcard $(QMK_USERSPACE)/layouts/$$(LAYOUT)/*/.)))))
+    endif

    KEYMAPS := $$(sort $$(KEYMAPS) $$(LAYOUT_KEYMAPS))

@ -300,17 +316,18 @@ endef
 define BUILD_TEST
    TEST_PATH := $1
    TEST_NAME := $$(notdir $$(TEST_PATH))
+    TEST_FULL_NAME := $$(subst /,_,$$(patsubst $$(ROOT_DIR)tests/%,%,$$(TEST_PATH)))
    MAKE_TARGET := $2
    COMMAND := $1
    MAKE_CMD := $$(MAKE) -r -R -C $(ROOT_DIR) -f $(BUILDDEFS_PATH)/build_test.mk $$(MAKE_TARGET)
-    MAKE_VARS := TEST=$$(TEST_NAME) TEST_PATH=$$(TEST_PATH) FULL_TESTS="$$(FULL_TESTS)"
+    MAKE_VARS := TEST=$$(TEST_NAME) TEST_OUTPUT=$$(TEST_FULL_NAME) TEST_PATH=$$(TEST_PATH) FULL_TESTS="$$(FULL_TESTS)"
    MAKE_MSG := $$(MSG_MAKE_TEST)
    $$(eval $$(call BUILD))
    ifneq ($$(MAKE_TARGET),clean)
-        TEST_EXECUTABLE := $$(TEST_OUTPUT_DIR)/$$(TEST_NAME).elf
-        TESTS += $$(TEST_NAME)
+        TEST_EXECUTABLE := $$(TEST_OUTPUT_DIR)/$$(TEST_FULL_NAME).elf
+        TESTS += $$(TEST_FULL_NAME)
        TEST_MSG := $$(MSG_TEST)
-        $$(TEST_NAME)_COMMAND := \
+        $$(TEST_FULL_NAME)_COMMAND := \
            printf "$$(TEST_MSG)\n"; \
            $$(TEST_EXECUTABLE); \
            if [ $$$$? -gt 0 ]; \
@ -322,15 +339,22 @@ endef

 define PARSE_TEST
    TESTS :=
-    TEST_NAME := $$(firstword $$(subst :, ,$$(RULE)))
-    TEST_TARGET := $$(subst $$(TEST_NAME),,$$(subst $$(TEST_NAME):,,$$(RULE)))
+    # list of possible targets, colon-delimited, to reassign to MAKE_TARGET and remove
+    TARGETS := :clean:
+    ifneq (,$$(findstring :$$(lastword $$(subst :, ,$$(RULE))):, $$(TARGETS)))
+        MAKE_TARGET := $$(lastword $$(subst :, ,$$(RULE)))
+        TEST_SUBPATH := $$(subst $$(eval) ,/,$$(wordlist 2, $$(words $$(subst :, ,$$(RULE))), _ $$(subst :, ,$$(RULE))))
+    else
+        MAKE_TARGET :=
+        TEST_SUBPATH := $$(subst :,/,$$(RULE))
+    endif
    include $(BUILDDEFS_PATH)/testlist.mk
-    ifeq ($$(TEST_NAME),all)
+    ifeq ($$(RULE),all)
        MATCHED_TESTS := $$(TEST_LIST)
    else
-        MATCHED_TESTS := $$(foreach TEST, $$(TEST_LIST),$$(if $$(findstring x$$(TEST_NAME)x, x$$(notdir $$(TEST))x), $$(TEST),))
+        MATCHED_TESTS := $$(foreach TEST, $$(TEST_LIST),$$(if $$(findstring /$$(TEST_SUBPATH)/, $$(patsubst %,%/,$$(TEST))), $$(TEST),))
    endif
-    $$(foreach TEST,$$(MATCHED_TESTS),$$(eval $$(call BUILD_TEST,$$(TEST),$$(TEST_TARGET))))
+    $$(foreach TEST,$$(MATCHED_TESTS),$$(eval $$(call BUILD_TEST,$$(TEST),$$(MAKE_TARGET))))
 endef


@ -423,8 +447,18 @@ clean:
 	rm -rf $(BUILD_DIR)
 	echo 'done.'

-.PHONY: distclean
-distclean: clean
+.PHONY: distclean distclean_qmk
+distclean: distclean_qmk
+distclean_qmk: clean
 	echo -n 'Deleting *.bin, *.hex, and *.uf2 ... '
 	rm -f *.bin *.hex *.uf2
 	echo 'done.'
+
+ifneq ($(QMK_USERSPACE),)
+.PHONY: distclean_userspace
+distclean: distclean_userspace
+distclean_userspace: clean
+	echo -n 'Deleting userspace *.bin, *.hex, and *.uf2 ... '
+	rm -f $(QMK_USERSPACE)/*.bin $(QMK_USERSPACE)/*.hex $(QMK_USERSPACE)/*.uf2
+	echo 'done.'
+endif
--- a/builddefs/build_full_test.mk
+++ b/builddefs/build_full_test.mk
@ -13,10 +13,10 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.

-$(TEST)_INC := \
+$(TEST_OUTPUT)_INC := \
 	tests/test_common/common_config.h

-$(TEST)_SRC := \
+$(TEST_OUTPUT)_SRC := \
 	$(QUANTUM_SRC) \
 	$(SRC) \
 	$(QUANTUM_PATH)/keymap_introspection.c \
@ -30,8 +30,8 @@ $(TEST)_SRC := \
 	tests/test_common/test_logger.cpp \
 	$(patsubst $(ROOTDIR)/%,%,$(wildcard $(TEST_PATH)/*.cpp))

-$(TEST)_DEFS := $(OPT_DEFS) "-DKEYMAP_C=\"keymap.c\""
+$(TEST_OUTPUT)_DEFS := $(OPT_DEFS) "-DKEYMAP_C=\"keymap.c\""

-$(TEST)_CONFIG := $(TEST_PATH)/config.h
+$(TEST_OUTPUT)_CONFIG := $(TEST_PATH)/config.h

 VPATH += $(TOP_DIR)/tests/test_common
--- a/builddefs/build_json.mk
+++ b/builddefs/build_json.mk
@ -1,17 +1,36 @@
 # Look for a json keymap file
 ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_5)/keymap.json)","")
    KEYMAP_JSON := $(MAIN_KEYMAP_PATH_5)/keymap.json
-    KEYMAP_PATH := $(MAIN_KEYMAP_PATH_5)
+    KEYMAP_JSON_PATH := $(MAIN_KEYMAP_PATH_5)
 else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_4)/keymap.json)","")
    KEYMAP_JSON := $(MAIN_KEYMAP_PATH_4)/keymap.json
-    KEYMAP_PATH := $(MAIN_KEYMAP_PATH_4)
+    KEYMAP_JSON_PATH := $(MAIN_KEYMAP_PATH_4)
 else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_3)/keymap.json)","")
    KEYMAP_JSON := $(MAIN_KEYMAP_PATH_3)/keymap.json
-    KEYMAP_PATH := $(MAIN_KEYMAP_PATH_3)
+    KEYMAP_JSON_PATH := $(MAIN_KEYMAP_PATH_3)
 else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_2)/keymap.json)","")
    KEYMAP_JSON := $(MAIN_KEYMAP_PATH_2)/keymap.json
-    KEYMAP_PATH := $(MAIN_KEYMAP_PATH_2)
+    KEYMAP_JSON_PATH := $(MAIN_KEYMAP_PATH_2)
 else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_1)/keymap.json)","")
    KEYMAP_JSON := $(MAIN_KEYMAP_PATH_1)/keymap.json
-    KEYMAP_PATH := $(MAIN_KEYMAP_PATH_1)
+    KEYMAP_JSON_PATH := $(MAIN_KEYMAP_PATH_1)
+endif
+
+ifneq ($(QMK_USERSPACE),)
+    ifneq ("$(wildcard $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_5)/keymap.json)","")
+        KEYMAP_JSON := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_5)/keymap.json
+        KEYMAP_PATH := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_5)
+    else ifneq ("$(wildcard $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_4)/keymap.json)","")
+        KEYMAP_JSON := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_4)/keymap.json
+        KEYMAP_PATH := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_4)
+    else ifneq ("$(wildcard $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_3)/keymap.json)","")
+        KEYMAP_JSON := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_3)/keymap.json
+        KEYMAP_PATH := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_3)
+    else ifneq ("$(wildcard $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_2)/keymap.json)","")
+        KEYMAP_JSON := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_2)/keymap.json
+        KEYMAP_PATH := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_2)
+    else ifneq ("$(wildcard $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_1)/keymap.json)","")
+        KEYMAP_JSON := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_1)/keymap.json
+        KEYMAP_PATH := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_1)
+    endif
 endif
--- a/builddefs/build_keyboard.mk
+++ b/builddefs/build_keyboard.mk
@ -129,37 +129,68 @@ include $(BUILDDEFS_PATH)/build_json.mk
 # Pull in keymap level rules.mk
 ifeq ("$(wildcard $(KEYMAP_PATH))", "")
    # Look through the possible keymap folders until we find a matching keymap.c
-    ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_1)/keymap.c)","")
-        -include $(MAIN_KEYMAP_PATH_1)/rules.mk
-        KEYMAP_C := $(MAIN_KEYMAP_PATH_1)/keymap.c
-        KEYMAP_PATH := $(MAIN_KEYMAP_PATH_1)
-    else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_2)/keymap.c)","")
-        -include $(MAIN_KEYMAP_PATH_2)/rules.mk
-        KEYMAP_C := $(MAIN_KEYMAP_PATH_2)/keymap.c
-        KEYMAP_PATH := $(MAIN_KEYMAP_PATH_2)
-    else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_3)/keymap.c)","")
-        -include $(MAIN_KEYMAP_PATH_3)/rules.mk
-        KEYMAP_C := $(MAIN_KEYMAP_PATH_3)/keymap.c
-        KEYMAP_PATH := $(MAIN_KEYMAP_PATH_3)
-    else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_4)/keymap.c)","")
-        -include $(MAIN_KEYMAP_PATH_4)/rules.mk
-        KEYMAP_C := $(MAIN_KEYMAP_PATH_4)/keymap.c
-        KEYMAP_PATH := $(MAIN_KEYMAP_PATH_4)
-    else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_5)/keymap.c)","")
-        -include $(MAIN_KEYMAP_PATH_5)/rules.mk
-        KEYMAP_C := $(MAIN_KEYMAP_PATH_5)/keymap.c
-        KEYMAP_PATH := $(MAIN_KEYMAP_PATH_5)
-    else ifneq ($(LAYOUTS),)
-        # If we haven't found a keymap yet fall back to community layouts
-        include $(BUILDDEFS_PATH)/build_layout.mk
-    else
-        $(call CATASTROPHIC_ERROR,Invalid keymap,Could not find keymap)
-        # this state should never be reached
+    ifneq ($(QMK_USERSPACE),)
+        ifneq ("$(wildcard $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_1)/keymap.c)","")
+            -include $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_1)/rules.mk
+            KEYMAP_C := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_1)/keymap.c
+            KEYMAP_PATH := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_1)
+        else ifneq ("$(wildcard $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_2)/keymap.c)","")
+            -include $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_2)/rules.mk
+            KEYMAP_C := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_2)/keymap.c
+            KEYMAP_PATH := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_2)
+        else ifneq ("$(wildcard $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_3)/keymap.c)","")
+            -include $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_3)/rules.mk
+            KEYMAP_C := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_3)/keymap.c
+            KEYMAP_PATH := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_3)
+        else ifneq ("$(wildcard $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_4)/keymap.c)","")
+            -include $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_4)/rules.mk
+            KEYMAP_C := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_4)/keymap.c
+            KEYMAP_PATH := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_4)
+        else ifneq ("$(wildcard $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_5)/keymap.c)","")
+            -include $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_5)/rules.mk
+            KEYMAP_C := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_5)/keymap.c
+            KEYMAP_PATH := $(QMK_USERSPACE)/$(MAIN_KEYMAP_PATH_5)
+        endif
+    endif
+    ifeq ($(KEYMAP_PATH),)
+        ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_1)/keymap.c)","")
+            -include $(MAIN_KEYMAP_PATH_1)/rules.mk
+            KEYMAP_C := $(MAIN_KEYMAP_PATH_1)/keymap.c
+            KEYMAP_PATH := $(MAIN_KEYMAP_PATH_1)
+        else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_2)/keymap.c)","")
+            -include $(MAIN_KEYMAP_PATH_2)/rules.mk
+            KEYMAP_C := $(MAIN_KEYMAP_PATH_2)/keymap.c
+            KEYMAP_PATH := $(MAIN_KEYMAP_PATH_2)
+        else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_3)/keymap.c)","")
+            -include $(MAIN_KEYMAP_PATH_3)/rules.mk
+            KEYMAP_C := $(MAIN_KEYMAP_PATH_3)/keymap.c
+            KEYMAP_PATH := $(MAIN_KEYMAP_PATH_3)
+        else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_4)/keymap.c)","")
+            -include $(MAIN_KEYMAP_PATH_4)/rules.mk
+            KEYMAP_C := $(MAIN_KEYMAP_PATH_4)/keymap.c
+            KEYMAP_PATH := $(MAIN_KEYMAP_PATH_4)
+        else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_5)/keymap.c)","")
+            -include $(MAIN_KEYMAP_PATH_5)/rules.mk
+            KEYMAP_C := $(MAIN_KEYMAP_PATH_5)/keymap.c
+            KEYMAP_PATH := $(MAIN_KEYMAP_PATH_5)
+        else ifneq ($(LAYOUTS),)
+            # If we haven't found a keymap yet fall back to community layouts
+            include $(BUILDDEFS_PATH)/build_layout.mk
+        else ifeq ("$(wildcard $(KEYMAP_JSON_PATH))", "") # Not finding keymap.c is fine if we found a keymap.json
+            $(call CATASTROPHIC_ERROR,Invalid keymap,Could not find keymap)
+            # this state should never be reached
+        endif
    endif
 endif

 # Have we found a keymap.json?
 ifneq ("$(wildcard $(KEYMAP_JSON))", "")
+    ifneq ("$(wildcard $(KEYMAP_C))", "")
+        $(call WARNING_MESSAGE,Keymap is specified as both keymap.json and keymap.c -- keymap.json file wins.)
+    endif
+
+    KEYMAP_PATH := $(KEYMAP_JSON_PATH)
+
    KEYMAP_C := $(INTERMEDIATE_OUTPUT)/src/keymap.c
    KEYMAP_H := $(INTERMEDIATE_OUTPUT)/src/config.h

@ -359,6 +390,16 @@ ifeq ("$(USER_NAME)","")
 endif
 USER_PATH := users/$(USER_NAME)

+# If we have userspace, then add it to the lookup VPATH
+ifneq ($(wildcard $(QMK_USERSPACE)),)
+    VPATH += $(QMK_USERSPACE)
+endif
+
+# If the equivalent users directory exists in userspace, use that in preference to anything currently in the main repo
+ifneq ($(wildcard $(QMK_USERSPACE)/$(USER_PATH)),)
+    USER_PATH := $(QMK_USERSPACE)/$(USER_PATH)
+endif
+
 # Pull in user level rules.mk
 -include $(USER_PATH)/rules.mk
 ifneq ("$(wildcard $(USER_PATH)/config.h)","")
@ -399,6 +440,10 @@ ifneq ("$(KEYMAP_H)","")
    CONFIG_H += $(KEYMAP_H)
 endif

+ifeq ($(KEYMAP_C),)
+    $(call CATASTROPHIC_ERROR,Invalid keymap,Could not find keymap)
+endif
+
 OPT_DEFS += -DKEYMAP_C=\"$(KEYMAP_C)\"

 # If a keymap or userspace places their keymap array in another file instead, allow for it to be included
@ -450,6 +495,7 @@ $(eval $(call add_qmk_prefix_defs,MCU_PORT_NAME,MCU_PORT_NAME))
 $(eval $(call add_qmk_prefix_defs,MCU_FAMILY,MCU_FAMILY))
 $(eval $(call add_qmk_prefix_defs,MCU_SERIES,MCU_SERIES))
 $(eval $(call add_qmk_prefix_defs,BOARD,BOARD))
+$(eval $(call add_qmk_prefix_defs,OPT,OPT))

 # Control whether intermediate file listings are generated
 # e.g.:
@ -495,10 +541,10 @@ check-size: top-symbols
 top-symbols: build
 	echo "###########################################"
 	echo "# Highest flash usage:"
-	$(NM) -Crtd --size-sort $(BUILD_DIR)/$(TARGET).elf | grep -i ' [t] ' | head -n$(NUM_TOP_SYMBOLS) | sed -e 's#^0000000#       #g' -e 's#^000000#      #g' -e 's#^00000#     #g' -e 's#^0000#    #g' -e 's#^000#   #g' -e 's#^00#  #g' -e 's#^0# #g'
+	$(NM) -Crtd --size-sort $(BUILD_DIR)/$(TARGET).elf | grep ' [RrTt] ' | head -n$(NUM_TOP_SYMBOLS) | sed -e 's#^0000000#       #g' -e 's#^000000#      #g' -e 's#^00000#     #g' -e 's#^0000#    #g' -e 's#^000#   #g' -e 's#^00#  #g' -e 's#^0# #g'
 	echo "###########################################"
 	echo "# Highest RAM usage:"
-	$(NM) -Crtd --size-sort $(BUILD_DIR)/$(TARGET).elf | grep -i ' [dbv] ' | head -n$(NUM_TOP_SYMBOLS) | sed -e 's#^0000000#       #g' -e 's#^000000#      #g' -e 's#^00000#     #g' -e 's#^0000#    #g' -e 's#^000#   #g' -e 's#^00#  #g' -e 's#^0# #g'
+	$(NM) -Crtd --size-sort $(BUILD_DIR)/$(TARGET).elf | grep ' [BbCDdGgSs] ' | head -n$(NUM_TOP_SYMBOLS) | sed -e 's#^0000000#       #g' -e 's#^000000#      #g' -e 's#^00000#     #g' -e 's#^0000#    #g' -e 's#^000#   #g' -e 's#^00#  #g' -e 's#^0# #g'
 	echo "###########################################"
 endif

--- a/builddefs/build_layout.mk
+++ b/builddefs/build_layout.mk
@ -1,6 +1,10 @@
 LAYOUTS_PATH := layouts
 LAYOUTS_REPOS := $(patsubst %/,%,$(sort $(dir $(wildcard $(LAYOUTS_PATH)/*/))))

+ifneq ($(QMK_USERSPACE),)
+    LAYOUTS_REPOS += $(patsubst %/,%,$(QMK_USERSPACE)/$(LAYOUTS_PATH))
+endif
+
 define SEARCH_LAYOUTS_REPO
    LAYOUT_KEYMAP_PATH := $$(LAYOUTS_REPO)/$$(LAYOUT)/$$(KEYMAP)
    LAYOUT_KEYMAP_JSON := $$(LAYOUT_KEYMAP_PATH)/keymap.json
--- a/builddefs/build_test.mk
+++ b/builddefs/build_test.mk
@ -9,13 +9,13 @@ OPT = g
 include paths.mk
 include $(BUILDDEFS_PATH)/message.mk

-TARGET=test/$(TEST)
+TARGET=test/$(TEST_OUTPUT)

 GTEST_OUTPUT = $(BUILD_DIR)/gtest

 TEST_OBJ = $(BUILD_DIR)/test_obj

-OUTPUTS := $(TEST_OBJ)/$(TEST) $(GTEST_OUTPUT)
+OUTPUTS := $(TEST_OBJ)/$(TEST_OUTPUT) $(GTEST_OUTPUT)

 GTEST_INC := \
 	$(LIB_PATH)/googletest/googletest/include \
@ -71,18 +71,18 @@ ifneq ($(filter $(FULL_TESTS),$(TEST)),)
 include $(BUILDDEFS_PATH)/build_full_test.mk
 endif

-$(TEST)_SRC += \
+$(TEST_OUTPUT)_SRC += \
 	tests/test_common/main.cpp \
 	$(QUANTUM_PATH)/logging/print.c

 ifneq ($(strip $(INTROSPECTION_KEYMAP_C)),)
-$(TEST)_DEFS += -DINTROSPECTION_KEYMAP_C=\"$(strip $(INTROSPECTION_KEYMAP_C))\"
+$(TEST_OUTPUT)_DEFS += -DINTROSPECTION_KEYMAP_C=\"$(strip $(INTROSPECTION_KEYMAP_C))\"
 endif

-$(TEST_OBJ)/$(TEST)_SRC := $($(TEST)_SRC)
-$(TEST_OBJ)/$(TEST)_INC := $($(TEST)_INC) $(VPATH) $(GTEST_INC)
-$(TEST_OBJ)/$(TEST)_DEFS := $($(TEST)_DEFS)
-$(TEST_OBJ)/$(TEST)_CONFIG := $($(TEST)_CONFIG)
+$(TEST_OBJ)/$(TEST_OUTPUT)_SRC := $($(TEST_OUTPUT)_SRC)
+$(TEST_OBJ)/$(TEST_OUTPUT)_INC := $($(TEST_OUTPUT)_INC) $(VPATH) $(GTEST_INC)
+$(TEST_OBJ)/$(TEST_OUTPUT)_DEFS := $($(TEST_OUTPUT)_DEFS)
+$(TEST_OBJ)/$(TEST_OUTPUT)_CONFIG := $($(TEST_OUTPUT)_CONFIG)

 include $(PLATFORM_PATH)/$(PLATFORM_KEY)/platform.mk
 include $(BUILDDEFS_PATH)/common_rules.mk
--- a/builddefs/common_features.mk
+++ b/builddefs/common_features.mk
@ -75,10 +75,7 @@ ifeq ($(strip $(AUDIO_ENABLE)), yes)
 endif

 ifeq ($(strip $(SEQUENCER_ENABLE)), yes)
-    OPT_DEFS += -DSEQUENCER_ENABLE
    MUSIC_ENABLE = yes
-    SRC += $(QUANTUM_DIR)/sequencer/sequencer.c
-    SRC += $(QUANTUM_DIR)/process_keycode/process_sequencer.c
 endif

 ifeq ($(strip $(MIDI_ENABLE)), yes)
@ -94,11 +91,6 @@ ifeq ($(strip $(MIDI_ENABLE)), yes)
    SRC += $(QUANTUM_DIR)/process_keycode/process_midi.c
 endif

-MUSIC_ENABLE ?= no
-ifeq ($(MUSIC_ENABLE), yes)
-    SRC += $(QUANTUM_DIR)/process_keycode/process_music.c
-endif
-
 VALID_STENO_PROTOCOL_TYPES := geminipr txbolt all
 STENO_PROTOCOL ?= all
 ifeq ($(strip $(STENO_ENABLE)), yes)
@ -124,17 +116,11 @@ ifeq ($(strip $(STENO_ENABLE)), yes)
    endif
 endif

-ifeq ($(strip $(VIRTSER_ENABLE)), yes)
-    OPT_DEFS += -DVIRTSER_ENABLE
-endif
-
 ifeq ($(strip $(MOUSEKEY_ENABLE)), yes)
-    OPT_DEFS += -DMOUSEKEY_ENABLE
    MOUSE_ENABLE := yes
-    SRC += $(QUANTUM_DIR)/mousekey.c
 endif

-VALID_POINTING_DEVICE_DRIVER_TYPES := adns5050 adns9800 analog_joystick cirque_pinnacle_i2c cirque_pinnacle_spi paw3204 pmw3320 pmw3360 pmw3389 pimoroni_trackball custom
+VALID_POINTING_DEVICE_DRIVER_TYPES := adns5050 adns9800 analog_joystick azoteq_iqs5xx cirque_pinnacle_i2c cirque_pinnacle_spi paw3204 pmw3320 pmw3360 pmw3389 pimoroni_trackball custom
 ifeq ($(strip $(POINTING_DEVICE_ENABLE)), yes)
    ifeq ($(filter $(POINTING_DEVICE_DRIVER),$(VALID_POINTING_DEVICE_DRIVER_TYPES)),)
        $(call CATASTROPHIC_ERROR,Invalid POINTING_DEVICE_DRIVER,POINTING_DEVICE_DRIVER="$(POINTING_DEVICE_DRIVER)" is not a valid pointing device type)
@ -151,30 +137,26 @@ ifeq ($(strip $(POINTING_DEVICE_ENABLE)), yes)
        endif
        OPT_DEFS += -DPOINTING_DEVICE_DRIVER_$(strip $(POINTING_DEVICE_DRIVER))
        ifeq ($(strip $(POINTING_DEVICE_DRIVER)), adns9800)
-            OPT_DEFS += -DSTM32_SPI -DHAL_USE_SPI=TRUE
-            QUANTUM_LIB_SRC += spi_master.c
+            SPI_DRIVER_REQUIRED = yes
        else ifeq ($(strip $(POINTING_DEVICE_DRIVER)), analog_joystick)
-            OPT_DEFS += -DSTM32_ADC -DHAL_USE_ADC=TRUE
-            LIB_SRC += analog.c
+            ANALOG_DRIVER_REQUIRED = yes
+        else ifeq ($(strip $(POINTING_DEVICE_DRIVER)), azoteq_iqs5xx)
+            I2C_DRIVER_REQUIRED = yes
        else ifeq ($(strip $(POINTING_DEVICE_DRIVER)), cirque_pinnacle_i2c)
-            OPT_DEFS += -DSTM32_I2C -DHAL_USE_I2C=TRUE
+            I2C_DRIVER_REQUIRED = yes
            SRC += drivers/sensors/cirque_pinnacle.c
            SRC += drivers/sensors/cirque_pinnacle_gestures.c
            SRC += $(QUANTUM_DIR)/pointing_device/pointing_device_gestures.c
-            QUANTUM_LIB_SRC += i2c_master.c
        else ifeq ($(strip $(POINTING_DEVICE_DRIVER)), cirque_pinnacle_spi)
-            OPT_DEFS += -DSTM32_SPI -DHAL_USE_SPI=TRUE
+            SPI_DRIVER_REQUIRED = yes
            SRC += drivers/sensors/cirque_pinnacle.c
            SRC += drivers/sensors/cirque_pinnacle_gestures.c
            SRC += $(QUANTUM_DIR)/pointing_device/pointing_device_gestures.c
-            QUANTUM_LIB_SRC += spi_master.c
        else ifeq ($(strip $(POINTING_DEVICE_DRIVER)), pimoroni_trackball)
-            OPT_DEFS += -DSTM32_SPI -DHAL_USE_I2C=TRUE
-            QUANTUM_LIB_SRC += i2c_master.c
+            I2C_DRIVER_REQUIRED = yes
        else ifneq ($(filter $(strip $(POINTING_DEVICE_DRIVER)),pmw3360 pmw3389),)
-            OPT_DEFS += -DSTM32_SPI -DHAL_USE_SPI=TRUE
+            SPI_DRIVER_REQUIRED = yes
            SRC += drivers/sensors/pmw33xx_common.c
-            QUANTUM_LIB_SRC += spi_master.c
        endif
    endif
 endif
@ -204,12 +186,12 @@ else
  else ifeq ($(strip $(EEPROM_DRIVER)), i2c)
    # External I2C EEPROM implementation
    OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_I2C
-    QUANTUM_LIB_SRC += i2c_master.c
+    I2C_DRIVER_REQUIRED = yes
    SRC += eeprom_driver.c eeprom_i2c.c
  else ifeq ($(strip $(EEPROM_DRIVER)), spi)
    # External SPI EEPROM implementation
    OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_SPI
-    QUANTUM_LIB_SRC += spi_master.c
+    SPI_DRIVER_REQUIRED = yes
    SRC += eeprom_driver.c eeprom_spi.c
  else ifeq ($(strip $(EEPROM_DRIVER)), legacy_stm32_flash)
    # STM32 Emulated EEPROM, backed by MCU flash (soon to be deprecated)
@ -308,10 +290,10 @@ ifneq ($(strip $(FLASH_DRIVER)), none)
    else
        OPT_DEFS += -DFLASH_ENABLE
        ifeq ($(strip $(FLASH_DRIVER)),spi)
+            SPI_DRIVER_REQUIRED = yes
            OPT_DEFS += -DFLASH_DRIVER -DFLASH_SPI
            COMMON_VPATH += $(DRIVER_PATH)/flash
            SRC += flash_spi.c
-            QUANTUM_LIB_SRC += spi_master.c
        endif
    endif
 endif
@ -328,6 +310,7 @@ ifeq ($(strip $(RGBLIGHT_ENABLE)), yes)
        COMMON_VPATH += $(QUANTUM_DIR)/rgblight
        POST_CONFIG_H += $(QUANTUM_DIR)/rgblight/rgblight_post_config.h
        OPT_DEFS += -DRGBLIGHT_ENABLE
+        OPT_DEFS += -DRGBLIGHT_$(strip $(shell echo $(RGBLIGHT_DRIVER) | tr '[:lower:]' '[:upper:]'))
        SRC += $(QUANTUM_DIR)/color.c
        SRC += $(QUANTUM_DIR)/rgblight/rgblight.c
        CIE1931_CURVE := yes
@ -342,24 +325,29 @@ ifeq ($(strip $(RGBLIGHT_ENABLE)), yes)
        APA102_DRIVER_REQUIRED := yes
    endif

-    ifeq ($(strip $(RGBLIGHT_DRIVER)), custom)
-        OPT_DEFS += -DRGBLIGHT_CUSTOM_DRIVER
+    ifeq ($(strip $(VELOCIKEY_ENABLE)), yes)
+        OPT_DEFS += -DVELOCIKEY_ENABLE
    endif
 endif

+# Deprecated driver names - do not use
+ifeq ($(strip $(LED_MATRIX_DRIVER)), aw20216)
+LED_MATRIX_DRIVER := aw20216s
+endif
+ifeq ($(strip $(LED_MATRIX_DRIVER)), ckled2001)
+LED_MATRIX_DRIVER := snled27351
+endif
+
 LED_MATRIX_ENABLE ?= no
-VALID_LED_MATRIX_TYPES := is31fl3731 is31fl3742a is31fl3743a is31fl3745 is31fl3746a ckled2001 custom
-# TODO: is31fl3733 is31fl3737 is31fl3741
+VALID_LED_MATRIX_TYPES := is31fl3218 is31fl3731 is31fl3733 is31fl3736 is31fl3737 is31fl3741 is31fl3742a is31fl3743a is31fl3745 is31fl3746a snled27351 custom

 ifeq ($(strip $(LED_MATRIX_ENABLE)), yes)
    ifeq ($(filter $(LED_MATRIX_DRIVER),$(VALID_LED_MATRIX_TYPES)),)
        $(call CATASTROPHIC_ERROR,Invalid LED_MATRIX_DRIVER,LED_MATRIX_DRIVER="$(LED_MATRIX_DRIVER)" is not a valid matrix type)
    endif
    OPT_DEFS += -DLED_MATRIX_ENABLE
-ifneq (,$(filter $(MCU), atmega16u2 atmega32u2 at90usb162))
-    # ATmegaxxU2 does not have hardware MUL instruction - lib8tion must be told to use software multiplication routines
-    OPT_DEFS += -DLIB8_ATTINY
-endif
+    OPT_DEFS += -DLED_MATRIX_$(strip $(shell echo $(LED_MATRIX_DRIVER) | tr '[:lower:]' '[:upper:]'))
+
    COMMON_VPATH += $(QUANTUM_DIR)/led_matrix
    COMMON_VPATH += $(QUANTUM_DIR)/led_matrix/animations
    COMMON_VPATH += $(QUANTUM_DIR)/led_matrix/animations/runners
@ -367,65 +355,99 @@ endif
    SRC += $(QUANTUM_DIR)/process_keycode/process_backlight.c
    SRC += $(QUANTUM_DIR)/led_matrix/led_matrix.c
    SRC += $(QUANTUM_DIR)/led_matrix/led_matrix_drivers.c
-    SRC += $(LIB_PATH)/lib8tion/lib8tion.c
+    LIB8TION_ENABLE := yes
    CIE1931_CURVE := yes

+    ifeq ($(strip $(LED_MATRIX_DRIVER)), is31fl3218)
+        I2C_DRIVER_REQUIRED = yes
+        COMMON_VPATH += $(DRIVER_PATH)/led/issi
+        SRC += is31fl3218-simple.c
+    endif
+
    ifeq ($(strip $(LED_MATRIX_DRIVER)), is31fl3731)
-        OPT_DEFS += -DIS31FL3731 -DSTM32_I2C -DHAL_USE_I2C=TRUE
+        I2C_DRIVER_REQUIRED = yes
        COMMON_VPATH += $(DRIVER_PATH)/led/issi
        SRC += is31fl3731-simple.c
-        QUANTUM_LIB_SRC += i2c_master.c
    endif

-	ifeq ($(strip $(LED_MATRIX_DRIVER)), is31fl3742a)
-        OPT_DEFS += -DIS31FLCOMMON -DIS31FL3742A -DSTM32_I2C -DHAL_USE_I2C=TRUE
+    ifeq ($(strip $(LED_MATRIX_DRIVER)), is31fl3733)
+        I2C_DRIVER_REQUIRED = yes
+        COMMON_VPATH += $(DRIVER_PATH)/led/issi
+        SRC += is31fl3733-simple.c
+    endif
+
+    ifeq ($(strip $(LED_MATRIX_DRIVER)), is31fl3736)
+        I2C_DRIVER_REQUIRED = yes
+        COMMON_VPATH += $(DRIVER_PATH)/led/issi
+        SRC += is31fl3736-simple.c
+    endif
+
+    ifeq ($(strip $(LED_MATRIX_DRIVER)), is31fl3737)
+        I2C_DRIVER_REQUIRED = yes
+        COMMON_VPATH += $(DRIVER_PATH)/led/issi
+        SRC += is31fl3737-simple.c
+    endif
+
+    ifeq ($(strip $(LED_MATRIX_DRIVER)), is31fl3741)
+        I2C_DRIVER_REQUIRED = yes
+        COMMON_VPATH += $(DRIVER_PATH)/led/issi
+        SRC += is31fl3741-simple.c
+    endif
+
+    ifeq ($(strip $(LED_MATRIX_DRIVER)), is31fl3742a)
+        OPT_DEFS += -DIS31FLCOMMON
+        I2C_DRIVER_REQUIRED = yes
        COMMON_VPATH += $(DRIVER_PATH)/led/issi
        SRC += is31flcommon.c
-        QUANTUM_LIB_SRC += i2c_master.c
    endif

-	ifeq ($(strip $(LED_MATRIX_DRIVER)), is31fl3743a)
-        OPT_DEFS += -DIS31FLCOMMON -DIS31FL3743A -DSTM32_I2C -DHAL_USE_I2C=TRUE
+    ifeq ($(strip $(LED_MATRIX_DRIVER)), is31fl3743a)
+        OPT_DEFS += -DIS31FLCOMMON
+        I2C_DRIVER_REQUIRED = yes
        COMMON_VPATH += $(DRIVER_PATH)/led/issi
        SRC += is31flcommon.c
-        QUANTUM_LIB_SRC += i2c_master.c
    endif

-	ifeq ($(strip $(LED_MATRIX_DRIVER)), is31fl3745)
-        OPT_DEFS += -DIS31FLCOMMON -DIS31FL3745 -DSTM32_I2C -DHAL_USE_I2C=TRUE
+    ifeq ($(strip $(LED_MATRIX_DRIVER)), is31fl3745)
+        OPT_DEFS += -DIS31FLCOMMON
+        I2C_DRIVER_REQUIRED = yes
        COMMON_VPATH += $(DRIVER_PATH)/led/issi
        SRC += is31flcommon.c
-        QUANTUM_LIB_SRC += i2c_master.c
    endif

-	ifeq ($(strip $(LED_MATRIX_DRIVER)), is31fl3746a)
-        OPT_DEFS += -DIS31FLCOMMON -DIS31FL3746A -DSTM32_I2C -DHAL_USE_I2C=TRUE
+    ifeq ($(strip $(LED_MATRIX_DRIVER)), is31fl3746a)
+        OPT_DEFS += -DIS31FLCOMMON
+        I2C_DRIVER_REQUIRED = yes
        COMMON_VPATH += $(DRIVER_PATH)/led/issi
        SRC += is31flcommon.c
-        QUANTUM_LIB_SRC += i2c_master.c
    endif

-	ifeq ($(strip $(LED_MATRIX_DRIVER)), ckled2001)
-        OPT_DEFS += -DCKLED2001 -DSTM32_I2C -DHAL_USE_I2C=TRUE
+    ifeq ($(strip $(LED_MATRIX_DRIVER)), snled27351)
+        I2C_DRIVER_REQUIRED = yes
        COMMON_VPATH += $(DRIVER_PATH)/led
-        SRC += ckled2001-simple.c
-        QUANTUM_LIB_SRC += i2c_master.c
+        SRC += snled27351-simple.c
    endif

 endif

+# Deprecated driver names - do not use
+ifeq ($(strip $(RGB_MATRIX_DRIVER)), aw20216)
+RGB_MATRIX_DRIVER := aw20216s
+endif
+ifeq ($(strip $(RGB_MATRIX_DRIVER)), ckled2001)
+RGB_MATRIX_DRIVER := snled27351
+endif
+
 RGB_MATRIX_ENABLE ?= no

-VALID_RGB_MATRIX_TYPES := aw20216 is31fl3731 is31fl3733 is31fl3736 is31fl3737 is31fl3741 is31fl3742a is31fl3743a is31fl3745 is31fl3746a ckled2001 ws2812 custom
+VALID_RGB_MATRIX_TYPES := aw20216s is31fl3218 is31fl3731 is31fl3733 is31fl3736 is31fl3737 is31fl3741 is31fl3742a is31fl3743a is31fl3745 is31fl3746a snled27351 ws2812 custom
 ifeq ($(strip $(RGB_MATRIX_ENABLE)), yes)
    ifeq ($(filter $(RGB_MATRIX_DRIVER),$(VALID_RGB_MATRIX_TYPES)),)
        $(call CATASTROPHIC_ERROR,Invalid RGB_MATRIX_DRIVER,RGB_MATRIX_DRIVER="$(RGB_MATRIX_DRIVER)" is not a valid matrix type)
    endif
    OPT_DEFS += -DRGB_MATRIX_ENABLE
-ifneq (,$(filter $(MCU), atmega16u2 atmega32u2 at90usb162))
-    # ATmegaxxU2 does not have hardware MUL instruction - lib8tion must be told to use software multiplication routines
-    OPT_DEFS += -DLIB8_ATTINY
-endif
+    OPT_DEFS += -DRGB_MATRIX_$(strip $(shell echo $(RGB_MATRIX_DRIVER) | tr '[:lower:]' '[:upper:]'))
+
    COMMON_VPATH += $(QUANTUM_DIR)/rgb_matrix
    COMMON_VPATH += $(QUANTUM_DIR)/rgb_matrix/animations
    COMMON_VPATH += $(QUANTUM_DIR)/rgb_matrix/animations/runners
@ -433,94 +455,91 @@ endif
    SRC += $(QUANTUM_DIR)/color.c
    SRC += $(QUANTUM_DIR)/rgb_matrix/rgb_matrix.c
    SRC += $(QUANTUM_DIR)/rgb_matrix/rgb_matrix_drivers.c
-    SRC += $(LIB_PATH)/lib8tion/lib8tion.c
+    LIB8TION_ENABLE := yes
    CIE1931_CURVE := yes
    RGB_KEYCODES_ENABLE := yes

-    ifeq ($(strip $(RGB_MATRIX_DRIVER)), aw20216)
-        OPT_DEFS += -DAW20216 -DSTM32_SPI -DHAL_USE_SPI=TRUE
+    ifeq ($(strip $(RGB_MATRIX_DRIVER)), aw20216s)
+        SPI_DRIVER_REQUIRED = yes
        COMMON_VPATH += $(DRIVER_PATH)/led
-        SRC += aw20216.c
-        QUANTUM_LIB_SRC += spi_master.c
+        SRC += aw20216s.c
+    endif
+
+    ifeq ($(strip $(RGB_MATRIX_DRIVER)), is31fl3218)
+        I2C_DRIVER_REQUIRED = yes
+        COMMON_VPATH += $(DRIVER_PATH)/led/issi
+        SRC += is31fl3218.c
    endif

    ifeq ($(strip $(RGB_MATRIX_DRIVER)), is31fl3731)
-        OPT_DEFS += -DIS31FL3731 -DSTM32_I2C -DHAL_USE_I2C=TRUE
+        I2C_DRIVER_REQUIRED = yes
        COMMON_VPATH += $(DRIVER_PATH)/led/issi
        SRC += is31fl3731.c
-        QUANTUM_LIB_SRC += i2c_master.c
    endif

    ifeq ($(strip $(RGB_MATRIX_DRIVER)), is31fl3733)
-        OPT_DEFS += -DIS31FL3733 -DSTM32_I2C -DHAL_USE_I2C=TRUE
+        I2C_DRIVER_REQUIRED = yes
        COMMON_VPATH += $(DRIVER_PATH)/led/issi
        SRC += is31fl3733.c
-        QUANTUM_LIB_SRC += i2c_master.c
    endif

    ifeq ($(strip $(RGB_MATRIX_DRIVER)), is31fl3736)
-        OPT_DEFS += -DIS31FL3736 -DSTM32_I2C -DHAL_USE_I2C=TRUE
+        I2C_DRIVER_REQUIRED = yes
        COMMON_VPATH += $(DRIVER_PATH)/led/issi
        SRC += is31fl3736.c
-        QUANTUM_LIB_SRC += i2c_master.c
    endif

    ifeq ($(strip $(RGB_MATRIX_DRIVER)), is31fl3737)
-        OPT_DEFS += -DIS31FL3737 -DSTM32_I2C -DHAL_USE_I2C=TRUE
+        I2C_DRIVER_REQUIRED = yes
        COMMON_VPATH += $(DRIVER_PATH)/led/issi
        SRC += is31fl3737.c
-        QUANTUM_LIB_SRC += i2c_master.c
    endif

    ifeq ($(strip $(RGB_MATRIX_DRIVER)), is31fl3741)
-        OPT_DEFS += -DIS31FL3741 -DSTM32_I2C -DHAL_USE_I2C=TRUE
+        I2C_DRIVER_REQUIRED = yes
        COMMON_VPATH += $(DRIVER_PATH)/led/issi
        SRC += is31fl3741.c
-        QUANTUM_LIB_SRC += i2c_master.c
    endif

-	ifeq ($(strip $(RGB_MATRIX_DRIVER)), is31fl3742a)
-        OPT_DEFS += -DIS31FLCOMMON -DIS31FL3742A -DSTM32_I2C -DHAL_USE_I2C=TRUE
+    ifeq ($(strip $(RGB_MATRIX_DRIVER)), is31fl3742a)
+        OPT_DEFS += -DIS31FLCOMMON
+        I2C_DRIVER_REQUIRED = yes
        COMMON_VPATH += $(DRIVER_PATH)/led/issi
        SRC += is31flcommon.c
-        QUANTUM_LIB_SRC += i2c_master.c
    endif

-	ifeq ($(strip $(RGB_MATRIX_DRIVER)), is31fl3743a)
-        OPT_DEFS += -DIS31FLCOMMON -DIS31FL3743A -DSTM32_I2C -DHAL_USE_I2C=TRUE
+    ifeq ($(strip $(RGB_MATRIX_DRIVER)), is31fl3743a)
+        OPT_DEFS += -DIS31FLCOMMON
+        I2C_DRIVER_REQUIRED = yes
        COMMON_VPATH += $(DRIVER_PATH)/led/issi
        SRC += is31flcommon.c
-        QUANTUM_LIB_SRC += i2c_master.c
    endif

-	ifeq ($(strip $(RGB_MATRIX_DRIVER)), is31fl3745)
-        OPT_DEFS += -DIS31FLCOMMON -DIS31FL3745 -DSTM32_I2C -DHAL_USE_I2C=TRUE
+    ifeq ($(strip $(RGB_MATRIX_DRIVER)), is31fl3745)
+        OPT_DEFS += -DIS31FLCOMMON
+        I2C_DRIVER_REQUIRED = yes
        COMMON_VPATH += $(DRIVER_PATH)/led/issi
        SRC += is31flcommon.c
-        QUANTUM_LIB_SRC += i2c_master.c
    endif

-	ifeq ($(strip $(RGB_MATRIX_DRIVER)), is31fl3746a)
-        OPT_DEFS += -DIS31FLCOMMON -DIS31FL3746A -DSTM32_I2C -DHAL_USE_I2C=TRUE
+    ifeq ($(strip $(RGB_MATRIX_DRIVER)), is31fl3746a)
+        OPT_DEFS += -DIS31FLCOMMON
+        I2C_DRIVER_REQUIRED = yes
        COMMON_VPATH += $(DRIVER_PATH)/led/issi
        SRC += is31flcommon.c
-        QUANTUM_LIB_SRC += i2c_master.c
    endif

-    ifeq ($(strip $(RGB_MATRIX_DRIVER)), ckled2001)
-        OPT_DEFS += -DCKLED2001 -DSTM32_I2C -DHAL_USE_I2C=TRUE
+    ifeq ($(strip $(RGB_MATRIX_DRIVER)), snled27351)
+        I2C_DRIVER_REQUIRED = yes
        COMMON_VPATH += $(DRIVER_PATH)/led
-        SRC += ckled2001.c
-        QUANTUM_LIB_SRC += i2c_master.c
+        SRC += snled27351.c
    endif

    ifeq ($(strip $(RGB_MATRIX_DRIVER)), ws2812)
-        OPT_DEFS += -DWS2812
        WS2812_DRIVER_REQUIRED := yes
    endif

    ifeq ($(strip $(RGB_MATRIX_DRIVER)), apa102)
-        OPT_DEFS += -DAPA102
        APA102_DRIVER_REQUIRED := yes
    endif

@ -567,6 +586,7 @@ ifeq ($(strip $(BACKLIGHT_ENABLE)), yes)
    SRC += $(QUANTUM_DIR)/backlight/backlight.c
    SRC += $(QUANTUM_DIR)/process_keycode/process_backlight.c
    OPT_DEFS += -DBACKLIGHT_ENABLE
+    OPT_DEFS += -DBACKLIGHT_$(strip $(shell echo $(BACKLIGHT_DRIVER) | tr '[:lower:]' '[:upper:]'))

    ifneq ($(strip $(BACKLIGHT_DRIVER)), custom)
        SRC += $(QUANTUM_DIR)/backlight/backlight_driver_common.c
@ -579,35 +599,6 @@ ifeq ($(strip $(BACKLIGHT_ENABLE)), yes)
    endif
 endif

-VALID_WS2812_DRIVER_TYPES := bitbang custom i2c pwm spi vendor
-
-WS2812_DRIVER ?= bitbang
-ifeq ($(strip $(WS2812_DRIVER_REQUIRED)), yes)
-    ifeq ($(filter $(WS2812_DRIVER),$(VALID_WS2812_DRIVER_TYPES)),)
-        $(call CATASTROPHIC_ERROR,Invalid WS2812_DRIVER,WS2812_DRIVER="$(WS2812_DRIVER)" is not a valid WS2812 driver)
-    endif
-
-    OPT_DEFS += -DWS2812_DRIVER_$(strip $(shell echo $(WS2812_DRIVER) | tr '[:lower:]' '[:upper:]'))
-
-    SRC += ws2812_$(strip $(WS2812_DRIVER)).c
-
-    ifeq ($(strip $(PLATFORM)), CHIBIOS)
-        ifeq ($(strip $(WS2812_DRIVER)), pwm)
-            OPT_DEFS += -DSTM32_DMA_REQUIRED=TRUE
-        endif
-    endif
-
-    # add extra deps
-    ifeq ($(strip $(WS2812_DRIVER)), i2c)
-        QUANTUM_LIB_SRC += i2c_master.c
-    endif
-endif
-
-ifeq ($(strip $(APA102_DRIVER_REQUIRED)), yes)
-    COMMON_VPATH += $(DRIVER_PATH)/led
-    SRC += apa102.c
-endif
-
 ifeq ($(strip $(CIE1931_CURVE)), yes)
    OPT_DEFS += -DUSE_CIE1931_CURVE
    LED_TABLES := yes
@ -622,8 +613,6 @@ ifeq ($(strip $(VIA_ENABLE)), yes)
    RAW_ENABLE := yes
    BOOTMAGIC_ENABLE := yes
    TRI_LAYER_ENABLE := yes
-    SRC += $(QUANTUM_DIR)/via.c
-    OPT_DEFS += -DVIA_ENABLE
 endif

 VALID_MAGIC_TYPES := yes
@ -708,33 +697,35 @@ ifeq ($(strip $(SPLIT_KEYBOARD)), yes)
    COMMON_VPATH += $(QUANTUM_PATH)/split_common
 endif

-ifeq ($(strip $(CRC_ENABLE)), yes)
-    OPT_DEFS += -DCRC_ENABLE
-    SRC += crc.c
-endif
-
 ifeq ($(strip $(FNV_ENABLE)), yes)
    OPT_DEFS += -DFNV_ENABLE
    VPATH += $(LIB_PATH)/fnv
    SRC += qmk_fnv_type_validation.c hash_32a.c hash_64a.c
 endif

+ifeq ($(strip $(LIB8TION_ENABLE)), yes)
+    ifneq (,$(filter $(MCU), atmega16u2 atmega32u2 at90usb162))
+        # ATmegaxxU2 does not have hardware MUL instruction - lib8tion must be told to use software multiplication routines
+        OPT_DEFS += -DLIB8_ATTINY
+    endif
+    SRC += $(LIB_PATH)/lib8tion/lib8tion.c
+endif
+
 VALID_HAPTIC_DRIVER_TYPES := drv2605l solenoid
 ifeq ($(strip $(HAPTIC_ENABLE)),yes)
    ifeq ($(filter $(HAPTIC_DRIVER),$(VALID_HAPTIC_DRIVER_TYPES)),)
        $(call CATASTROPHIC_ERROR,Invalid HAPTIC_DRIVER,HAPTIC_DRIVER="$(HAPTIC_DRIVER)" is not a valid Haptic driver)
    else
+        OPT_DEFS += -DHAPTIC_$(strip $(shell echo $(HAPTIC_DRIVER) | tr '[:lower:]' '[:upper:]'))
        COMMON_VPATH += $(DRIVER_PATH)/haptic

        ifeq ($(strip $(HAPTIC_DRIVER)), drv2605l)
+            I2C_DRIVER_REQUIRED = yes
            SRC += drv2605l.c
-            QUANTUM_LIB_SRC += i2c_master.c
-            OPT_DEFS += -DHAPTIC_DRV2605L
        endif

        ifeq ($(strip $(HAPTIC_DRIVER)), solenoid)
            SRC += solenoid.c
-            OPT_DEFS += -DHAPTIC_SOLENOID
        endif
    endif
 endif
@ -757,6 +748,7 @@ ifeq ($(strip $(OLED_ENABLE)), yes)
            $(call CATASTROPHIC_ERROR,Invalid OLED_TRANSPORT,OLED_TRANSPORT="$(OLED_TRANSPORT)" is not a valid OLED transport)
        else
            OPT_DEFS += -DOLED_ENABLE
+            OPT_DEFS += -DOLED_$(strip $(shell echo $(OLED_DRIVER) | tr '[:lower:]' '[:upper:]'))
            COMMON_VPATH += $(DRIVER_PATH)/oled
            ifneq ($(strip $(OLED_DRIVER)), custom)
                SRC += oled_driver.c
@ -764,10 +756,10 @@ ifeq ($(strip $(OLED_ENABLE)), yes)

            OPT_DEFS += -DOLED_TRANSPORT_$(strip $(shell echo $(OLED_TRANSPORT) | tr '[:lower:]' '[:upper:]'))
            ifeq ($(strip $(OLED_TRANSPORT)), i2c)
-                QUANTUM_LIB_SRC += i2c_master.c
+                I2C_DRIVER_REQUIRED = yes
            endif
            ifeq ($(strip $(OLED_TRANSPORT)), spi)
-                QUANTUM_LIB_SRC += spi_master.c
+                SPI_DRIVER_REQUIRED = yes
            endif
        endif
    endif
@ -775,9 +767,9 @@ endif

 ifeq ($(strip $(ST7565_ENABLE)), yes)
    OPT_DEFS += -DST7565_ENABLE
+    SPI_DRIVER_REQUIRED = yes
    COMMON_VPATH += $(DRIVER_PATH)/oled # For glcdfont.h
    COMMON_VPATH += $(DRIVER_PATH)/lcd
-    QUANTUM_LIB_SRC += spi_master.c
    SRC += st7565.c
 endif

@ -809,27 +801,6 @@ ifeq ($(strip $(UNICODE_COMMON)), yes)
           $(QUANTUM_DIR)/unicode/utf8.c
 endif

-MAGIC_ENABLE ?= yes
-ifeq ($(strip $(MAGIC_ENABLE)), yes)
-    SRC += $(QUANTUM_DIR)/process_keycode/process_magic.c
-    OPT_DEFS += -DMAGIC_KEYCODE_ENABLE
-endif
-
-SEND_STRING_ENABLE ?= yes
-ifeq ($(strip $(SEND_STRING_ENABLE)), yes)
-    OPT_DEFS += -DSEND_STRING_ENABLE
-    COMMON_VPATH += $(QUANTUM_DIR)/send_string
-    SRC += $(QUANTUM_DIR)/send_string/send_string.c
-endif
-
-ifeq ($(strip $(AUTO_SHIFT_ENABLE)), yes)
-    SRC += $(QUANTUM_DIR)/process_keycode/process_auto_shift.c
-    OPT_DEFS += -DAUTO_SHIFT_ENABLE
-    ifeq ($(strip $(AUTO_SHIFT_MODIFIERS)), yes)
-        OPT_DEFS += -DAUTO_SHIFT_MODIFIERS
-    endif
-endif
-
 ifeq ($(strip $(PS2_MOUSE_ENABLE)), yes)
    PS2_ENABLE := yes
    MOUSE_ENABLE := yes
@ -870,8 +841,8 @@ ifeq ($(strip $(JOYSTICK_ENABLE)), yes)
    SRC += $(QUANTUM_DIR)/joystick.c

    ifeq ($(strip $(JOYSTICK_DRIVER)), analog)
+        ANALOG_DRIVER_REQUIRED = yes
        OPT_DEFS += -DANALOG_JOYSTICK_ENABLE
-        SRC += analog.c
    endif
    ifeq ($(strip $(JOYSTICK_DRIVER)), digital)
        OPT_DEFS += -DDIGITAL_JOYSTICK_ENABLE
@ -909,23 +880,22 @@ ifeq ($(strip $(BLUETOOTH_ENABLE)), yes)
        $(call CATASTROPHIC_ERROR,Invalid BLUETOOTH_DRIVER,BLUETOOTH_DRIVER="$(BLUETOOTH_DRIVER)" is not a valid Bluetooth driver type)
    endif
    OPT_DEFS += -DBLUETOOTH_ENABLE
+    OPT_DEFS += -DBLUETOOTH_$(strip $(shell echo $(BLUETOOTH_DRIVER) | tr '[:lower:]' '[:upper:]'))
    NO_USB_STARTUP_CHECK := yes
    COMMON_VPATH += $(DRIVER_PATH)/bluetooth
    SRC += outputselect.c

    ifeq ($(strip $(BLUETOOTH_DRIVER)), bluefruit_le)
-        OPT_DEFS += -DBLUETOOTH_BLUEFRUIT_LE -DHAL_USE_SPI=TRUE
+        SPI_DRIVER_REQUIRED = yes
+        ANALOG_DRIVER_REQUIRED = yes
        SRC += $(DRIVER_PATH)/bluetooth/bluetooth.c
        SRC += $(DRIVER_PATH)/bluetooth/bluefruit_le.cpp
-        QUANTUM_LIB_SRC += analog.c
-        QUANTUM_LIB_SRC += spi_master.c
    endif

    ifeq ($(strip $(BLUETOOTH_DRIVER)), rn42)
-        OPT_DEFS += -DBLUETOOTH_RN42 -DHAL_USE_SERIAL=TRUE
+        UART_DRIVER_REQUIRED = yes
        SRC += $(DRIVER_PATH)/bluetooth/bluetooth.c
        SRC += $(DRIVER_PATH)/bluetooth/rn42.c
-        QUANTUM_LIB_SRC += uart.c
    endif
 endif

@ -937,10 +907,51 @@ ifeq ($(strip $(ENCODER_ENABLE)), yes)
    endif
 endif

-ifeq ($(strip $(OS_DETECTION_ENABLE)), yes)
-    SRC += $(QUANTUM_DIR)/os_detection.c
-    OPT_DEFS += -DOS_DETECTION_ENABLE
-    ifeq ($(strip $(OS_DETECTION_DEBUG_ENABLE)), yes)
-        OPT_DEFS += -DOS_DETECTION_DEBUG_ENABLE
+VALID_WS2812_DRIVER_TYPES := bitbang custom i2c pwm spi vendor
+
+WS2812_DRIVER ?= bitbang
+ifeq ($(strip $(WS2812_DRIVER_REQUIRED)), yes)
+    ifeq ($(filter $(WS2812_DRIVER),$(VALID_WS2812_DRIVER_TYPES)),)
+        $(call CATASTROPHIC_ERROR,Invalid WS2812_DRIVER,WS2812_DRIVER="$(WS2812_DRIVER)" is not a valid WS2812 driver)
+    endif
+
+    OPT_DEFS += -DWS2812_$(strip $(shell echo $(WS2812_DRIVER) | tr '[:lower:]' '[:upper:]'))
+
+    SRC += ws2812_$(strip $(WS2812_DRIVER)).c
+
+    ifeq ($(strip $(PLATFORM)), CHIBIOS)
+        ifeq ($(strip $(WS2812_DRIVER)), pwm)
+            OPT_DEFS += -DSTM32_DMA_REQUIRED=TRUE
+        endif
+    endif
+
+    # add extra deps
+    ifeq ($(strip $(WS2812_DRIVER)), i2c)
+        I2C_DRIVER_REQUIRED = yes
    endif
 endif
+
+ifeq ($(strip $(APA102_DRIVER_REQUIRED)), yes)
+    COMMON_VPATH += $(DRIVER_PATH)/led
+    SRC += apa102.c
+endif
+
+ifeq ($(strip $(ANALOG_DRIVER_REQUIRED)), yes)
+    OPT_DEFS += -DHAL_USE_ADC=TRUE
+    QUANTUM_LIB_SRC += analog.c
+endif
+
+ifeq ($(strip $(I2C_DRIVER_REQUIRED)), yes)
+    OPT_DEFS += -DHAL_USE_I2C=TRUE
+    QUANTUM_LIB_SRC += i2c_master.c
+endif
+
+ifeq ($(strip $(SPI_DRIVER_REQUIRED)), yes)
+    OPT_DEFS += -DHAL_USE_SPI=TRUE
+    QUANTUM_LIB_SRC += spi_master.c
+endif
+
+ifeq ($(strip $(UART_DRIVER_REQUIRED)), yes)
+    OPT_DEFS += -DHAL_USE_SERIAL=TRUE
+    QUANTUM_LIB_SRC += uart.c
+endif
--- a/builddefs/common_rules.mk
+++ b/builddefs/common_rules.mk
@ -12,6 +12,9 @@ vpath %.hpp $(VPATH_SRC)
 vpath %.S $(VPATH_SRC)
 VPATH :=

+# Helper to return the distinct elements of a list
+uniq = $(if $1,$(firstword $1) $(call uniq,$(filter-out $(firstword $1),$1)))
+
 # Convert all SRC to OBJ
 define OBJ_FROM_SRC
 $(patsubst %.c,$1/%.o,$(patsubst %.cpp,$1/%.o,$(patsubst %.cc,$1/%.o,$(patsubst %.S,$1/%.o,$(patsubst %.clib,$1/%.a,$($1_SRC))))))
@ -188,7 +191,7 @@ DFU_SUFFIX_ARGS ?=
 elf: $(BUILD_DIR)/$(TARGET).elf
 hex: $(BUILD_DIR)/$(TARGET).hex
 uf2: $(BUILD_DIR)/$(TARGET).uf2
-cpfirmware: $(FIRMWARE_FORMAT)
+cpfirmware_qmk: $(FIRMWARE_FORMAT)
 	$(SILENT) || printf "Copying $(TARGET).$(FIRMWARE_FORMAT) to qmk_firmware folder" | $(AWK_CMD)
 	$(COPY) $(BUILD_DIR)/$(TARGET).$(FIRMWARE_FORMAT) $(TARGET).$(FIRMWARE_FORMAT) && $(PRINT_OK)
 eep: $(BUILD_DIR)/$(TARGET).eep
@ -197,6 +200,15 @@ sym: $(BUILD_DIR)/$(TARGET).sym
 LIBNAME=lib$(TARGET).a
 lib: $(LIBNAME)

+cpfirmware: cpfirmware_qmk
+
+ifneq ($(QMK_USERSPACE),)
+cpfirmware: cpfirmware_userspace
+cpfirmware_userspace: cpfirmware_qmk
+	$(SILENT) || printf "Copying $(TARGET).$(FIRMWARE_FORMAT) to userspace folder" | $(AWK_CMD)
+	$(COPY) $(BUILD_DIR)/$(TARGET).$(FIRMWARE_FORMAT) $(QMK_USERSPACE)/$(TARGET).$(FIRMWARE_FORMAT) && $(PRINT_OK)
+endif
+
 # Display size of file, modifying the output so people don't mistakenly grab the hex output
 BINARY_SIZE = $(SIZE) --target=$(FORMAT) $(BUILD_DIR)/$(TARGET).hex | $(SED) -e 's/\.build\/.*$$/$(TARGET).$(FIRMWARE_FORMAT)/g'

@ -264,7 +276,7 @@ BEGIN = gccversion sizebefore
 # Note the obj.txt depeendency is there to force linking if a source file is deleted
 %.elf: $(OBJ) $(MASTER_OUTPUT)/cflags.txt $(MASTER_OUTPUT)/ldflags.txt $(MASTER_OUTPUT)/obj.txt | $(BEGIN)
 	@$(SILENT) || printf "$(MSG_LINKING) $@" | $(AWK_CMD)
-	$(eval CMD=MAKE=$(MAKE) $(CC) $(ALL_CFLAGS) $(filter-out %.txt,$^) --output $@ $(LDFLAGS))
+	$(eval CMD=MAKE=$(MAKE) $(CC) $(ALL_CFLAGS) $(call uniq,$(OBJ)) --output $@ $(LDFLAGS))
 	@$(BUILD_CMD)


@ -380,33 +392,9 @@ dump_vars:
 objs-size:
 	for i in $(OBJ); do echo $$i; done | sort | xargs $(SIZE)

-ifeq ($(findstring avr-gcc,$(CC)),avr-gcc)
-SIZE_MARGIN = 1024

+# size check optionally implemented in its platform.mk
 check-size:
-	$(eval MAX_SIZE=$(shell n=`$(CC) -E -mmcu=$(MCU) -D__ASSEMBLER__ $(CFLAGS) $(OPT_DEFS) platforms/avr/bootloader_size.c 2> /dev/null | $(SED) -ne 's/\r//;/^#/n;/^AVR_SIZE:/,$${s/^AVR_SIZE: //;p;}'` && echo $$(($$n)) || echo 0))
-	$(eval CURRENT_SIZE=$(shell if [ -f $(BUILD_DIR)/$(TARGET).hex ]; then $(SIZE) --target=$(FORMAT) $(BUILD_DIR)/$(TARGET).hex | $(AWK) 'NR==2 {print $$4}'; else printf 0; fi))
-	$(eval FREE_SIZE=$(shell expr $(MAX_SIZE) - $(CURRENT_SIZE)))
-	$(eval OVER_SIZE=$(shell expr $(CURRENT_SIZE) - $(MAX_SIZE)))
-	$(eval PERCENT_SIZE=$(shell expr $(CURRENT_SIZE) \* 100 / $(MAX_SIZE)))
-	if [ $(MAX_SIZE) -gt 0 ] && [ $(CURRENT_SIZE) -gt 0 ]; then \
-		$(SILENT) || printf "$(MSG_CHECK_FILESIZE)" | $(AWK_CMD); \
-		if [ $(CURRENT_SIZE) -gt $(MAX_SIZE) ]; then \
-			$(REMOVE) $(TARGET).$(FIRMWARE_FORMAT); \
-			$(REMOVE) $(BUILD_DIR)/$(TARGET).{hex,bin,uf2}; \
-		    printf "\n * $(MSG_FILE_TOO_BIG)"; $(PRINT_ERROR_PLAIN); \
-		else \
-		    if [ $(FREE_SIZE) -lt $(SIZE_MARGIN) ]; then \
-			$(PRINT_WARNING_PLAIN); printf " * $(MSG_FILE_NEAR_LIMIT)"; \
-		    else \
-			$(PRINT_OK); $(SILENT) || printf " * $(MSG_FILE_JUST_RIGHT)"; \
-		    fi ; \
-		fi ; \
-	fi
-else
-check-size:
-	$(SILENT) || echo "$(MSG_CHECK_FILESIZE_SKIPPED)"
-endif

 check-md5:
 	$(MD5SUM) $(BUILD_DIR)/$(TARGET).$(FIRMWARE_FORMAT)
--- a/builddefs/converters.mk
+++ b/builddefs/converters.mk
@ -25,7 +25,9 @@ ifneq ($(CONVERT_TO),)
    -include $(CONVERTER)/pre_converter.mk

    PLATFORM_KEY = $(shell echo $(CONVERTER) | cut -d "/" -f2)
-    TARGET := $(TARGET)_$(CONVERT_TO)
+
+    # force setting as value can be from environment
+    override TARGET := $(TARGET)_$(CONVERT_TO)

    # Configure any defaults
    OPT_DEFS += -DCONVERT_TO_$(shell echo $(CONVERT_TO) | tr '[:lower:]' '[:upper:]')
--- a/builddefs/generic_features.mk
+++ b/builddefs/generic_features.mk
@ -13,39 +13,52 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.

-SPACE_CADET_ENABLE ?= yes
 GRAVE_ESC_ENABLE ?= yes
+MAGIC_ENABLE ?= yes
+SEND_STRING_ENABLE ?= yes
+SPACE_CADET_ENABLE ?= yes

 GENERIC_FEATURES = \
+    AUTO_SHIFT \
    AUTOCORRECT \
    CAPS_WORD \
    COMBO \
    COMMAND \
+    CRC \
    DEFERRED_EXEC \
    DIGITIZER \
    DIP_SWITCH \
    DYNAMIC_KEYMAP \
    DYNAMIC_MACRO \
+    DYNAMIC_TAPPING_TERM \
    GRAVE_ESC \
    HAPTIC \
    KEY_LOCK \
    KEY_OVERRIDE \
    LEADER \
+    MAGIC \
+    MOUSEKEY \
+    MUSIC \
+    OS_DETECTION \
    PROGRAMMABLE_BUTTON \
    REPEAT_KEY \
    SECURE \
+    SEND_STRING \
+    SEQUENCER \
    SPACE_CADET \
    SWAP_HANDS \
    TAP_DANCE \
-    VELOCIKEY \
+    TRI_LAYER \
+    VIA \
+    VIRTSER \
    WPM \
-    DYNAMIC_TAPPING_TERM \
-    TRI_LAYER

 define HANDLE_GENERIC_FEATURE
    # $$(info "Processing: $1_ENABLE $2.c")
    SRC += $$(wildcard $$(QUANTUM_DIR)/process_keycode/process_$2.c)
+    SRC += $$(wildcard $$(QUANTUM_DIR)/$2/$2.c)
    SRC += $$(wildcard $$(QUANTUM_DIR)/$2.c)
+    VPATH += $$(wildcard $$(QUANTUM_DIR)/$2/)
    OPT_DEFS += -D$1_ENABLE
 endef

--- a/builddefs/message.mk
+++ b/builddefs/message.mk
@ -91,7 +91,6 @@ MSG_AVAILABLE_KEYMAPS = $(eval $(call GENERATE_MSG_AVAILABLE_KEYMAPS))$(MSG_AVAI

 MSG_BOOTLOADER_NOT_FOUND_BASE = Bootloader not found. Make sure the board is in bootloader mode. See https://docs.qmk.fm/\#/newbs_flashing\n
 MSG_CHECK_FILESIZE = Checking file size of $(TARGET).$(FIRMWARE_FORMAT)
-MSG_CHECK_FILESIZE_SKIPPED = (Firmware size check does not yet support $(MCU_ORIG); skipping)
 MSG_FILE_TOO_BIG = $(ERROR_COLOR)The firmware is too large!$(NO_COLOR) $(CURRENT_SIZE)/$(MAX_SIZE) ($(OVER_SIZE) bytes over)\n
 MSG_FILE_TOO_SMALL = The firmware is too small! $(CURRENT_SIZE)/$(MAX_SIZE)\n
 MSG_FILE_JUST_RIGHT = The firmware size is fine - $(CURRENT_SIZE)/$(MAX_SIZE) ($(PERCENT_SIZE)%%, $(FREE_SIZE) bytes free)\n
@ -104,6 +103,10 @@ MSG_BOOTLOADER_NOT_FOUND = $(ERROR_COLOR)ERROR:$(NO_COLOR) $(MSG_BOOTLOADER_NOT_
 BOOTLOADER_RETRY_TIME ?= 0.5
 MSG_BOOTLOADER_NOT_FOUND_QUICK_RETRY = $(MSG_BOOTLOADER_NOT_FOUND_BASE) Trying again every $(BOOTLOADER_RETRY_TIME)s (Ctrl+C to cancel)

+define WARNING_MESSAGE
+    $(shell printf "\n %-99s $(WARN_STRING)\n" "$1" >&2)
+endef
+
 define CATASTROPHIC_ERROR
    $(shell printf "\n * %-99s $(ERROR_STRING)\n" "$2" >&2)
    $(error $1)
--- a/builddefs/show_options.mk
+++ b/builddefs/show_options.mk
@ -37,7 +37,6 @@ OTHER_OPTION_NAMES = \
  UNICODEMAP_ENABLE \
  UNICODE_COMMON \
  AUTO_SHIFT_ENABLE \
-  AUTO_SHIFT_MODIFIERS \
  DYNAMIC_TAPPING_TERM_ENABLE \
  COMBO_ENABLE \
  KEY_LOCK_ENABLE \
@ -60,7 +59,6 @@ OTHER_OPTION_NAMES = \
  ENCODER_ENABLE_CUSTOM \
  GERMAN_ENABLE \
  HAPTIC_ENABLE \
-  ISSI_ENABLE \
  KEYLOGGER_ENABLE \
  LCD_BACKLIGHT_ENABLE \
  MACROS_ENABLED \
--- a/data/constants/keycodes/extras/keycodes_russian_typewriter_0.0.1.hjson
+++ b/data/constants/keycodes/extras/keycodes_russian_typewriter_0.0.1.hjson
@ -0,0 +1,291 @@
+{
+    "aliases": {
+/*
+ * ┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───────┐
+ * │ | │ № │ - │ / │ " │ : │ , │ . │ _ │ ? │ % │ ! │ ; │       │
+ * ├───┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─────┤
+ * │     │ Й │ Ц │ У │ К │ Е │ Н │ Г │ Ш │ Щ │ З │ Х │ Ъ │  )  │
+ * ├─────┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴─────┤
+ * │      │ Ф │ Ы │ В │ А │ П │ Р │ О │ Л │ Д │ Ж │ Э │        │
+ * ├──────┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴────────┤
+ * │        │ Я │ Ч │ С │ М │ И │ Т │ Ь │ Б │ Ю │ Ё │          │
+ * ├────┬───┴┬──┴─┬─┴───┴───┴───┴───┴───┴──┬┴───┼───┴┬────┬────┤
+ * │    │    │    │                        │    │    │    │    │
+ * └────┴────┴────┴────────────────────────┴────┴────┴────┴────┘
+ */
+        "KC_GRV": {
+            "key": "RU_PIPE",
+            "label": "|",
+        }
+        "KC_1": {
+            "key": "RU_NUM",
+            "label": "№",
+        }
+        "KC_2": {
+            "key": "RU_MINS",
+            "label": "-",
+        }
+        "KC_3": {
+            "key": "RU_SLSH",
+            "label": "/",
+        }
+        "KC_4": {
+            "key": "RU_DQUO",
+            "label": "\"",
+        }
+        "KC_5": {
+            "key": "RU_COLN",
+            "label": ":",
+        }
+        "KC_6": {
+            "key": "RU_COMM",
+            "label": ",",
+        }
+        "KC_7": {
+            "key": "RU_DOT",
+            "label": ".",
+        }
+        "KC_8": {
+            "key": "RU_UNDS",
+            "label": "_",
+        }
+        "KC_9": {
+            "key": "RU_QUES",
+            "label": "?",
+        }
+        "KC_0": {
+            "key": "RU_PERC",
+            "label": "%",
+        }
+        "KC_MINS": {
+            "key": "RU_EXLM",
+            "label": "!",
+        }
+        "KC_EQL": {
+            "key": "RU_SCLN",
+            "label": ";",
+        }
+        "KC_Q": {
+            "key": "RU_SHTI",
+            "label": "Й",
+        }
+        "KC_W": {
+            "key": "RU_TSE",
+            "label": "Ц",
+        }
+        "KC_E": {
+            "key": "RU_U",
+            "label": "У",
+        }
+        "KC_R": {
+            "key": "RU_KA",
+            "label": "К",
+        }
+        "KC_T": {
+            "key": "RU_IE",
+            "label": "Е",
+        }
+        "KC_Y": {
+            "key": "RU_EN",
+            "label": "Н",
+        }
+        "KC_U": {
+            "key": "RU_GHE",
+            "label": "Г",
+        }
+        "KC_I": {
+            "key": "RU_SHA",
+            "label": "Ш",
+        }
+        "KC_O": {
+            "key": "RU_SHCH",
+            "label": "Щ",
+        }
+        "KC_P": {
+            "key": "RU_ZE",
+            "label": "З",
+        }
+        "KC_LBRC": {
+            "key": "RU_HA",
+            "label": "Х",
+        }
+        "KC_RBRC": {
+            "key": "RU_HARD",
+            "label": "Ъ",
+        }
+        "KC_BSLS": {
+            "key": "RU_RPRN",
+            "label": ")",
+        }
+        "KC_A": {
+            "key": "RU_EF",
+            "label": "Ф",
+        }
+        "KC_S": {
+            "key": "RU_YERU",
+            "label": "Ы",
+        }
+        "KC_D": {
+            "key": "RU_VE",
+            "label": "В",
+        }
+        "KC_F": {
+            "key": "RU_A",
+            "label": "А",
+        }
+        "KC_G": {
+            "key": "RU_PE",
+            "label": "П",
+        }
+        "KC_H": {
+            "key": "RU_ER",
+            "label": "Р",
+        }
+        "KC_J": {
+            "key": "RU_O",
+            "label": "О",
+        }
+        "KC_K": {
+            "key": "RU_EL",
+            "label": "Л",
+        }
+        "KC_L": {
+            "key": "RU_DE",
+            "label": "Д",
+        }
+        "KC_SCLN": {
+            "key": "RU_ZHE",
+            "label": "Ж",
+        }
+        "KC_QUOT": {
+            "key": "RU_E",
+            "label": "Э",
+        }
+        "KC_Z": {
+            "key": "RU_YA",
+            "label": "Я",
+        }
+        "KC_X": {
+            "key": "RU_CHE",
+            "label": "Ч",
+        }
+        "KC_C": {
+            "key": "RU_ES",
+            "label": "С",
+        }
+        "KC_V": {
+            "key": "RU_EM",
+            "label": "М",
+        }
+        "KC_B": {
+            "key": "RU_I",
+            "label": "И",
+        }
+        "KC_N": {
+            "key": "RU_TE",
+            "label": "Т",
+        }
+        "KC_M": {
+            "key": "RU_SOFT",
+            "label": "Ь",
+        }
+        "KC_COMM": {
+            "key": "RU_BE",
+            "label": "Б",
+        }
+        "KC_DOT": {
+            "key": "RU_YU",
+            "label": "Ю",
+        }
+        "KC_SLSH": {
+            "key": "RU_YO",
+            "label": "Ё",
+        }
+/* Shifted symbols
+ * ┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───────┐
+ * │ + │ 1 │ 2 │ 3 │ 4 │ 5 │ 6 │ 7 │ 8 │ 9 │ 0 │ = │ \ │       │
+ * ├───┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─────┤
+ * │     │   │   │   │   │   │   │   │   │   │   │   │   │  (  │
+ * ├─────┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴─────┤
+ * │      │   │   │   │   │   │   │   │   │   │   │   │        │
+ * ├──────┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴────────┤
+ * │        │   │   │   │   │   │   │   │   │   │   │          │
+ * ├────┬───┴┬──┴─┬─┴───┴───┴───┴───┴───┴──┬┴───┼───┴┬────┬────┤
+ * │    │    │    │                        │    │    │    │    │
+ * └────┴────┴────┴────────────────────────┴────┴────┴────┴────┘
+ */
+        "S(RU_PIPE)": {
+            "key": "RU_PLUS",
+            "label": "+",
+        }
+        "S(RU_NUM)": {
+            "key": "RU_1",
+            "label": "1",
+        }
+        "S(RU_MINS)": {
+            "key": "RU_2",
+            "label": "2",
+        }
+        "S(RU_SLSH)": {
+            "key": "RU_3",
+            "label": "3",
+        }
+        "S(RU_DQUO)": {
+            "key": "RU_4",
+            "label": "4",
+        }
+        "S(RU_COLN)": {
+            "key": "RU_5",
+            "label": "5",
+        }
+        "S(RU_COMM)": {
+            "key": "RU_6",
+            "label": "6",
+        }
+        "S(RU_DOT)": {
+            "key": "RU_7",
+            "label": "7",
+        }
+        "S(RU_UNDS)": {
+            "key": "RU_8",
+            "label": "8",
+        }
+        "S(RU_QUES)": {
+            "key": "RU_9",
+            "label": "9",
+        }
+        "S(RU_PERC)": {
+            "key": "RU_0",
+            "label": "0",
+        }
+        "S(RU_EXLM)": {
+            "key": "RU_EQL",
+            "label": "=",
+        }
+        "S(RU_SCLN)": {
+            "key": "RU_BSLS",
+            "label": "\\",
+        }
+        "S(RU_RPRN)": {
+            "key": "RU_LPRN",
+            "label": "(",
+        }
+/* AltGr symbols
+ * ┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───────┐
+ * │   │   │   │   │   │   │   │   │ ₽ │   │   │   │   │       │
+ * ├───┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─────┤
+ * │     │   │   │   │   │   │   │   │   │   │   │   │   │     │
+ * ├─────┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴─────┤
+ * │      │   │   │   │   │   │   │   │   │   │   │   │        │
+ * ├──────┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴────────┤
+ * │        │   │   │   │   │   │   │   │   │   │   │          │
+ * ├────┬───┴┬──┴─┬─┴───┴───┴───┴───┴───┴──┬┴───┼───┴┬────┬────┤
+ * │    │    │    │                        │    │    │    │    │
+ * └────┴────┴────┴────────────────────────┴────┴────┴────┴────┘
+ */
+        "ALGR(RU_UNDS)": {
+            "key": "RU_RUBL",
+            "label": "₽",
+        }
+    }
+}
--- a/data/mappings/defaults.hjson
+++ b/data/mappings/defaults.hjson
@ -1,84 +1,84 @@
 {
    "development_board": {
-        "promicro": {
-            "processor": "atmega32u4",
-            "bootloader": "caterina",
-            "pin_compatible": "promicro"
-        },
-        "elite_c": {
-            "processor": "atmega32u4",
-            "bootloader": "atmel-dfu",
-            "pin_compatible": "promicro"
-        },
-        "elite_pi": {
-            "processor": "RP2040",
-            "bootloader": "rp2040",
-            "board": "QMK_PM2040"
-        },
-        "proton_c": {
-            "processor": "STM32F303",
-            "bootloader": "stm32-dfu",
-            "board": "QMK_PROTON_C"
-        },
-        "kb2040": {
-            "processor": "RP2040",
-            "bootloader": "rp2040",
-            "board": "QMK_PM2040"
-        },
-        "promicro_rp2040": {
-            "processor": "RP2040",
-            "bootloader": "rp2040",
-            "board": "QMK_PM2040"
-        },
-        "blok": {
-            "processor": "RP2040",
-            "bootloader": "rp2040",
-            "board": "QMK_BLOK"
-        },
-        "michi": {
-            "processor": "RP2040",
-            "bootloader": "rp2040",
-            "board": "QMK_PM2040"
-        },
        "bit_c_pro": {
-            "processor": "RP2040",
+            "board": "QMK_PM2040",
            "bootloader": "rp2040",
-            "board": "QMK_PM2040"
-        },
-        "bluepill": {
-            "processor": "STM32F103",
-            "bootloader": "stm32duino",
-            "board": "STM32_F103_STM32DUINO"
+            "processor": "RP2040"
        },
        "blackpill_f401": {
-            "processor": "STM32F401",
+            "board": "BLACKPILL_STM32_F401",
            "bootloader": "stm32-dfu",
-            "board": "BLACKPILL_STM32_F401"
+            "processor": "STM32F401"
        },
        "blackpill_f411": {
-            "processor": "STM32F411",
+            "board": "BLACKPILL_STM32_F411",
            "bootloader": "stm32-dfu",
-            "board": "BLACKPILL_STM32_F411"
+            "processor": "STM32F411"
        },
-        "stemcell": {
-            "processor": "STM32F411",
-            "bootloader": "tinyuf2",
-            "board": "STEMCELL"
+        "blok": {
+            "board": "QMK_BLOK",
+            "bootloader": "rp2040",
+            "processor": "RP2040"
+        },
+        "bluepill": {
+            "board": "STM32_F103_STM32DUINO",
+            "bootloader": "stm32duino",
+            "processor": "STM32F103"
        },
        "bonsai_c4": {
-            "processor": "STM32F411",
+            "board": "BONSAI_C4",
            "bootloader": "stm32-dfu",
-            "board": "BONSAI_C4"
+            "processor": "STM32F411"
+        },
+        "elite_c": {
+            "bootloader": "atmel-dfu",
+            "pin_compatible": "promicro",
+            "processor": "atmega32u4"
+        },
+        "elite_pi": {
+            "board": "QMK_PM2040",
+            "bootloader": "rp2040",
+            "processor": "RP2040"
        },
        "helios": {
-            "processor": "RP2040",
+            "board": "QMK_PM2040",
            "bootloader": "rp2040",
-            "board": "QMK_PM2040"
+            "processor": "RP2040"
+        },
+        "kb2040": {
+            "board": "QMK_PM2040",
+            "bootloader": "rp2040",
+            "processor": "RP2040"
        },
        "liatris": {
-            "processor": "RP2040",
+            "board": "QMK_PM2040",
            "bootloader": "rp2040",
-            "board": "QMK_PM2040"
+            "processor": "RP2040"
+        },
+        "michi": {
+            "board": "QMK_PM2040",
+            "bootloader": "rp2040",
+            "processor": "RP2040"
+        },
+        "promicro": {
+            "bootloader": "caterina",
+            "pin_compatible": "promicro",
+            "processor": "atmega32u4"
+        },
+        "promicro_rp2040": {
+            "board": "QMK_PM2040",
+            "bootloader": "rp2040",
+            "processor": "RP2040"
+        },
+        "proton_c": {
+            "board": "QMK_PROTON_C",
+            "bootloader": "stm32-dfu",
+            "processor": "STM32F303"
+        },
+        "stemcell": {
+            "board": "STEMCELL",
+            "bootloader": "tinyuf2",
+            "processor": "STM32F411"
        }
    }
 }
--- a/data/mappings/info_config.hjson
+++ b/data/mappings/info_config.hjson
@ -29,6 +29,9 @@
    "BACKLIGHT_PIN": {"info_key": "backlight.pin"},
    "BACKLIGHT_PINS": {"info_key": "backlight.pins", "value_type": "array"},
    "BREATHING_PERIOD": {"info_key": "backlight.breathing_period", "value_type": "int"},
+    "BACKLIGHT_DEFAULT_ON": {"info_key": "backlight.default.on", "value_type": "bool"},
+    "BACKLIGHT_DEFAULT_BREATHING": {"info_key": "backlight.default.breathing", "value_type": "bool"},
+    "BACKLIGHT_DEFAULT_LEVEL": {"info_key": "backlight.default.brightness", "value_type": "int"},

    // Bootmagic
    "BOOTMAGIC_LITE_COLUMN": {"info_key": "bootmagic.matrix.1", "value_type": "int"},
@ -45,10 +48,18 @@
    // Combos
    "COMBO_TERM": {"info_key": "combo.term", "value_type": "int"},

+    "DIP_SWITCH_MATRIX_GRID": {"info_key": "dip_switch.matrix_grid", "value_type": "array.array.int", "to_json": false},
+    "DIP_SWITCH_PINS": {"info_key": "dip_switch.pins", "value_type": "array"},
+    "DIP_SWITCH_PINS_RIGHT": {"info_key": "split.dip_switch.right.pins", "value_type": "array"},
+
    // Dynamic Keymap
    "DYNAMIC_KEYMAP_EEPROM_MAX_ADDR": {"info_key": "dynamic_keymap.eeprom_max_addr", "value_type": "int"},
    "DYNAMIC_KEYMAP_LAYER_COUNT": {"info_key": "dynamic_keymap.layer_count", "value_type": "int"},

+    // EEPROM
+    "WEAR_LEVELING_BACKING_SIZE": {"info_key": "eeprom.wear_leveling.backing_size", "value_type": "int", "to_json": false},
+    "WEAR_LEVELING_LOGICAL_SIZE": {"info_key": "eeprom.wear_leveling.logical_size", "value_type": "int", "to_json": false},
+
    // Indicators
    "LED_CAPS_LOCK_PIN": {"info_key": "indicators.caps_lock"},
    "LED_NUM_LOCK_PIN": {"info_key": "indicators.num_lock"},
@ -63,13 +74,24 @@
    "LEADER_TIMEOUT": {"info_key": "leader_key.timeout", "value_type": "int"},

    // LED Matrix
+    "LED_DISABLE_WHEN_USB_SUSPENDED": {"info_key": "led_matrix.sleep", "value_type": "bool"},
    "LED_MATRIX_CENTER": {"info_key": "led_matrix.center_point", "value_type": "array.int"},
+    "LED_MATRIX_KEYRELEASES": {"info_key": "led_matrix.react_on_keyup", "value_type": "bool"},
+    "LED_MATRIX_LED_FLUSH_LIMIT": {"info_key": "led_matrix.led_flush_limit", "value_type": "int"},
+    "LED_MATRIX_LED_PROCESS_LIMIT": {"info_key": "led_matrix.led_process_limit", "value_type": "int", "to_json": false},
    "LED_MATRIX_MAXIMUM_BRIGHTNESS": {"info_key": "led_matrix.max_brightness", "value_type": "int"},
    "LED_MATRIX_SPD_STEP": {"info_key": "led_matrix.speed_steps", "value_type": "int"},
    "LED_MATRIX_SPLIT": {"info_key": "led_matrix.split_count", "value_type": "array.int"},
    "LED_MATRIX_TIMEOUT": {"info_key": "led_matrix.timeout", "value_type": "int"},
    "LED_MATRIX_VAL_STEP": {"info_key": "led_matrix.val_steps", "value_type": "int"},
    "LED_MATRIX_LED_COUNT": {"info_key": "led_matrix.led_count", "value_type": "int", "to_json": false},
+    "LED_MATRIX_DEFAULT_ON": {"info_key": "led_matrix.default.on", "value_type": "bool"},
+    "LED_MATRIX_DEFAULT_VAL": {"info_key": "led_matrix.default.val", "value_type": "int"},
+    "LED_MATRIX_DEFAULT_SPD": {"info_key": "led_matrix.default.speed", "value_type": "int"},
+
+    // Locking Switch
+    "LOCKING_SUPPORT_ENABLE": {"info_key": "qmk.locking.enabled", "value_type": "bool"},
+    "LOCKING_RESYNC_ENABLE": {"info_key": "qmk.locking.resync", "value_type": "bool"},

    // LUFA Bootloader
    "QMK_ESC_INPUT": {"info_key": "qmk_lufa_bootloader.esc_input"},
@ -100,8 +122,12 @@
    "PS2_DATA_PIN": {"info_key": "ps2.data_pin"},

    // RGB Matrix
+    "RGB_DISABLE_WHEN_USB_SUSPENDED": {"info_key": "rgb_matrix.sleep", "value_type": "bool"},
    "RGB_MATRIX_CENTER": {"info_key": "rgb_matrix.center_point", "value_type": "array.int"},
    "RGB_MATRIX_HUE_STEP": {"info_key": "rgb_matrix.hue_steps", "value_type": "int"},
+    "RGB_MATRIX_KEYRELEASES": {"info_key": "rgb_matrix.react_on_keyup", "value_type": "bool"},
+    "RGB_MATRIX_LED_FLUSH_LIMIT": {"info_key": "rgb_matrix.led_flush_limit", "value_type": "int"},
+    "RGB_MATRIX_LED_PROCESS_LIMIT": {"info_key": "rgb_matrix.led_process_limit", "value_type": "int", "to_json": false},
    "RGB_MATRIX_MAXIMUM_BRIGHTNESS": {"info_key": "rgb_matrix.max_brightness", "value_type": "int"},
    "RGB_MATRIX_SAT_STEP": {"info_key": "rgb_matrix.sat_steps", "value_type": "int"},
    "RGB_MATRIX_SPD_STEP": {"info_key": "rgb_matrix.speed_steps", "value_type": "int"},
@ -109,6 +135,11 @@
    "RGB_MATRIX_TIMEOUT": {"info_key": "rgb_matrix.timeout", "value_type": "int"},
    "RGB_MATRIX_VAL_STEP": {"info_key": "rgb_matrix.val_steps", "value_type": "int"},
    "RGB_MATRIX_LED_COUNT": {"info_key": "rgb_matrix.led_count", "value_type": "int", "to_json": false},
+    "RGB_MATRIX_DEFAULT_ON": {"info_key": "rgb_matrix.default.on", "value_type": "bool"},
+    "RGB_MATRIX_DEFAULT_HUE": {"info_key": "rgb_matrix.default.hue", "value_type": "int"},
+    "RGB_MATRIX_DEFAULT_SAT": {"info_key": "rgb_matrix.default.sat", "value_type": "int"},
+    "RGB_MATRIX_DEFAULT_VAL": {"info_key": "rgb_matrix.default.val", "value_type": "int"},
+    "RGB_MATRIX_DEFAULT_SPD": {"info_key": "rgb_matrix.default.speed", "value_type": "int"},

    // RGBLight
    "RGBLED_NUM": {"info_key": "rgblight.led_count", "value_type": "int"},
@ -124,6 +155,11 @@
    "RGBLIGHT_SLEEP": {"info_key": "rgblight.sleep", "value_type": "bool"},
    "RGBLIGHT_SPLIT": {"info_key": "rgblight.split", "value_type": "bool"},
    "RGBLIGHT_VAL_STEP": {"info_key": "rgblight.brightness_steps", "value_type": "int"},
+    "RGBLIGHT_DEFAULT_ON": {"info_key": "rgblight.default.on", "value_type": "bool"},
+    "RGBLIGHT_DEFAULT_HUE": {"info_key": "rgblight.default.hue", "value_type": "int"},
+    "RGBLIGHT_DEFAULT_SAT": {"info_key": "rgblight.default.sat", "value_type": "int"},
+    "RGBLIGHT_DEFAULT_VAL": {"info_key": "rgblight.default.val", "value_type": "int"},
+    "RGBLIGHT_DEFAULT_SPD": {"info_key": "rgblight.default.speed", "value_type": "int"},
    "RGBW": {"info_key": "rgblight.rgbw", "value_type": "bool"},

    // Secure
@ -134,13 +170,23 @@
    // Split Keyboard
    "SOFT_SERIAL_PIN": {"info_key": "split.soft_serial_pin"},
    "SOFT_SERIAL_SPEED": {"info_key": "split.soft_serial_speed"},
-    "SPLIT_MODS_ENABLE": {"info_key": "split.transport.sync_modifiers", "value_type": "bool"},
-    "SPLIT_TRANSPORT_MIRROR": {"info_key": "split.transport.sync_matrix_state", "value_type": "bool"},
+    "SPLIT_HAND_MATRIX_GRID": {"info_key": "split.handedness.matrix_grid", "value_type": "array", "to_c": false},
+    "SPLIT_HAND_PIN": {"info_key": "split.handedness.pin"},
    "SPLIT_USB_DETECT": {"info_key": "split.usb_detect.enabled", "value_type": "bool"},
    "SPLIT_USB_TIMEOUT": {"info_key": "split.usb_detect.timeout", "value_type": "int"},
    "SPLIT_USB_TIMEOUT_POLL": {"info_key": "split.usb_detect.polling_interval", "value_type": "int"},
    "SPLIT_WATCHDOG_ENABLE": {"info_key": "split.transport.watchdog", "value_type": "bool"},
    "SPLIT_WATCHDOG_TIMEOUT": {"info_key": "split.transport.watchdog_timeout", "value_type": "int"},
+    "SPLIT_ACTIVITY_ENABLE": {"info_key": "split.transport.sync.activity", "value_type": "bool"},
+    "SPLIT_DETECTED_OS_ENABLE": {"info_key": "split.transport.sync.detected_os", "value_type": "bool"},
+    "SPLIT_HAPTIC_ENABLE": {"info_key": "split.transport.sync.haptic", "value_type": "bool"},
+    "SPLIT_LAYER_STATE_ENABLE": {"info_key": "split.transport.sync.layer_state", "value_type": "bool"},
+    "SPLIT_LED_STATE_ENABLE": {"info_key": "split.transport.sync.indicators", "value_type": "bool"},
+    "SPLIT_TRANSPORT_MIRROR": {"info_key": "split.transport.sync.matrix_state", "value_type": "bool"},
+    "SPLIT_MODS_ENABLE": {"info_key": "split.transport.sync.modifiers", "value_type": "bool"},
+    "SPLIT_OLED_ENABLE": {"info_key": "split.transport.sync.oled", "value_type": "bool"},
+    "SPLIT_ST7565_ENABLE": {"info_key": "split.transport.sync.st7565", "value_type": "bool"},
+    "SPLIT_WPM_ENABLE": {"info_key": "split.transport.sync.wpm", "value_type": "bool"},

    // Tapping
    "HOLD_ON_OTHER_KEY_PRESS": {"info_key": "tapping.hold_on_other_key_press", "value_type": "bool"},
@ -190,4 +236,9 @@
    "PRODUCT": {"info_key": "keyboard_name", "warn_duplicate": false, "value_type": "str", "deprecated": true, "replace_with": "`keyboard_name` in info.json"},
    "PRODUCT_ID": {"info_key": "usb.pid", "value_type": "hex", "deprecated": true, "replace_with": "`usb.pid` in info.json"},
    "VENDOR_ID": {"info_key": "usb.vid", "value_type": "hex", "deprecated": true, "replace_with": "`usb.vid` in info.json"},
+
+    // Items we want flagged in lint
+    "VIAL_KEYBOARD_UID": {"info_key": "_invalid.vial_uid", "invalid": true},
+    "VIAL_UNLOCK_COMBO_COLS": {"info_key": "_invalid.vial_unlock_cols", "invalid": true},
+    "VIAL_UNLOCK_COMBO_ROWS": {"info_key": "_invalid.vial_unlock_rows", "invalid": true}
 }
--- a/data/mappings/info_rules.hjson
+++ b/data/mappings/info_rules.hjson
@ -17,6 +17,7 @@
    "BOOTLOADER": {"info_key": "bootloader", "warn_duplicate": false},
    "BOOTMAGIC_ENABLE": {"info_key": "bootmagic.enabled", "value_type": "bool"},
    "CAPS_WORD_ENABLE": {"info_key": "caps_word.enabled", "value_type": "bool"},
+    "DIP_SWITCH_ENABLE": {"info_key": "dip_switch.enabled", "value_type": "bool"},
    "DEBOUNCE_TYPE": {"info_key": "build.debounce_type"},
    "EEPROM_DRIVER": {"info_key": "eeprom.driver"},
    "ENCODER_ENABLE": {"info_key": "encoder.enabled", "value_type": "bool"},
@ -42,6 +43,7 @@
    "STENO_ENABLE": {"info_key": "stenography.enabled", "value_type": "bool"},
    "STENO_PROTOCOL": {"info_key": "stenography.protocol"},
    "WAIT_FOR_USB": {"info_key": "usb.wait_for", "value_type": "bool"},
+    "WEAR_LEVELING_DRIVER": {"info_key": "eeprom.wear_leveling.driver"},
    "WS2812_DRIVER": {"info_key": "ws2812.driver"},

    // Items we want flagged in lint
--- a/data/mappings/keyboard_aliases.hjson
+++ b/data/mappings/keyboard_aliases.hjson
@ -4,6 +4,13 @@
    //     "target": "<keyboard_folder>"
    // }
    //
+
+    /* This list of aliases is for testing purposes -- ensures "linked list" recursive traversal works correctly. */
+    "_test_a": { "target": "_test_b" },
+    "_test_b": { "target": "_test_c" },
+    "_test_c": { "target": "planck/rev6" },
+
+    /* The main list of aliases for moved keyboards within QMK. */
    "2_milk": {
        "target": "spaceman/2_milk"
    },
@ -35,7 +42,7 @@
        "target": "amjkeyboard/amjpad"
    },
    "angel64": {
-        "target": "angel64/alpha"
+        "target": "kakunpc/angel64/alpha"
    },
    "ashpil/modelm_usbc": {
        "target": "ibm/model_m/ashpil_usbc"
@ -47,10 +54,10 @@
        "target": "viktus/at101_bh"
    },
    "atom47/rev2": {
-        "target": "maartenwut/atom47/rev2"
+        "target": "evyd13/atom47/rev2"
    },
    "atom47/rev3": {
-        "target": "maartenwut/atom47/rev3"
+        "target": "evyd13/atom47/rev3"
    },
    "bakeneko60": {
        "target": "kkatano/bakeneko60"
@ -65,7 +72,7 @@
        "target": "bear_face/v1"
    },
    "bm16a": {
-        "target": "kprepublic/bm16a"
+        "target": "kprepublic/bm16a/v1"
    },
    "bm16s": {
        "target": "kprepublic/bm16s"
@ -77,16 +84,16 @@
        "target": "kprepublic/bm43a"
    },
    "bm60poker": {
-        "target": "kprepublic/bm60poker"
+        "target": "kprepublic/bm60hsrgb_poker/rev1"
    },
    "bm60rgb": {
-        "target": "kprepublic/bm60rgb"
+        "target": "kprepublic/bm60hsrgb/rev1"
    },
    "bm60rgb_iso": {
-        "target": "kprepublic/bm60rgb_iso"
+        "target": "kprepublic/bm60hsrgb_iso/rev1"
    },
    "bm68rgb": {
-        "target": "kprepublic/bm68rgb"
+        "target": "kprepublic/bm68hsrgb/rev1"
    },
    "bpiphany/pegasushoof": {
        "target": "bpiphany/pegasushoof/2013"
@ -136,11 +143,17 @@
    "daisy": {
        "target": "ktec/daisy"
    },
+    "dp3000": {
+        "target": "dp3000/rev1"
+    },
    "drakon": {
        "target": "jagdpietr/drakon"
    },
    "durgod/k320": {
-        "target": "durgod/k3x0/k320"
+        "target": "durgod/k320/base"
+    },
+    "durgod/k3x0/k320": {
+        "target": "durgod/k320/base"
    },
    "durgod/hades": {
        "target": "durgod/dgk6x/hades_ansi"
@ -166,6 +179,9 @@
    "dztech/volcano660": {
        "target": "ilumkb/volcano660"
    },
+    "dztech/og60": {
+        "target": "dztech/tofu60"
+    },
    "eek": {
        "target": "eek/silk_down"
    },
@ -199,6 +215,9 @@
    "handwired/dactyl_manuform/6x6_kinesis": {
        "target": "handwired/dactyl_kinesis"
    },
+    "handwired/dactyl_manuform/dmote/62key": {
+        "target": "handwired/dmote"
+    },
    "handwired/ferris": {
        "target": "ferris/0_1"
    },
@ -269,7 +288,7 @@
        "target": "idb/idb_60"
    },
    "idobo": {
-        "target": "idobao/id75"
+        "target": "idobao/id75/v1"
    },
    "jacky_studio/piggy60": {
        "target": "jacky_studio/piggy60/rev1"
@ -391,6 +410,9 @@
    "maartenwut/wonderland": {
        "target": "evyd13/wonderland"
    },
+    "matchstickworks/southpad": {
+        "target": "matchstickworks/southpad/rev2/"
+    },
    "matrix/m12og": {
        "target": "matrix/m12og/rev1"
    },
@ -401,7 +423,7 @@
        "target": "mechlovin/adelais/rgb_led/rev1"
    },
    "mechlovin/adelais/standard_led": {
-        "target": "mechlovin/adelais/standard_led/rev2"
+        "target": "mechlovin/adelais/standard_led/arm/rev2"
    },
    "mechlovin/delphine": {
        "target": "mechlovin/delphine/mono_led"
@ -455,10 +477,10 @@
        "target": "pabile/p20/ver1"
    },
    "pancake/feather": {
-        "target": "spaceman/pancake/feather"
+        "target": "spaceman/pancake/rev1/feather"
    },
    "pancake/promicro": {
-        "target": "spaceman/pancake/promicro"
+        "target": "spaceman/pancake/rev1/promicro"
    },
    "peiorisboards/ixora": {
        "target": "coarse/ixora"
@ -467,7 +489,7 @@
        "target": "dm9records/plaid"
    },
    "plain60": {
-        "target": "maartenwut/plain60"
+        "target": "evyd13/plain60"
    },
    "ploopyco/trackball": {
        "target": "ploopyco/trackball/rev1_005"
@ -503,10 +525,10 @@
        "target": "wilba_tech/rama_works_u80_a"
    },
    "ramonimbao/herringbone": {
-        "target": "ramonimbao/herringbone/v1"
+        "target": "rmi_kb/herringbone/v1"
    },
    "ramonimbao/mona": {
-        "target": "ramonimbao/mona/v1"
+        "target": "rmi_kb/mona/v1"
    },
    "rgbkb/pan": {
        "target": "rgbkb/pan/rev1/32a"
@ -542,10 +564,10 @@
        "target": "tkw/stoutgat/v1"
    },
    "suihankey": {
-        "target": "suihankey/split/alpha"
+        "target": "kakunpc/suihankey/split/alpha"
    },
    "ta65": {
-        "target": "maartenwut/ta65"
+        "target": "evyd13/ta65"
    },
    "tartan": {
        "target": "dm9records/tartan"
@ -563,13 +585,13 @@
        "target": "matthewdias/txuu"
    },
    "underscore33": {
-        "target": "underscore33/rev1"
+        "target": "tominabox1/underscore33/rev1"
    },
    "vinta": {
        "target": "coarse/vinta"
    },
    "wasdat": {
-        "target": "maartenwut/wasdat"
+        "target": "evyd13/wasdat"
    },
    "westfoxtrot/cypher": {
        "target": "westfoxtrot/cypher/rev1"
@ -581,10 +603,10 @@
        "target": "xiudi/xd002"
    },
    "xd004": {
-        "target": "xiudi/xd004"
+        "target": "xiudi/xd004/v1"
    },
    "xd60": {
-        "target": "xiudi/xd60"
+        "target": "xiudi/xd60/rev2"
    },
    "xd68": {
        "target": "xiudi/xd68"
@ -831,7 +853,7 @@
        "target": "kagizaraya/halberd"
    },
    "handwired/hillside/0_1": {
-        "target": "handwired/hillside/48"
+        "target": "hillside/48/0_1"
    },
    "hecomi/alpha": {
        "target": "takashiski/hecomi/alpha"
@ -843,10 +865,10 @@
        "target": "bpiphany/hid_liber"
    },
    "id67/default_rgb": {
-        "target": "idobao/id67/default_rgb"
+        "target": "idobao/id67"
    },
    "id67/rgb": {
-        "target": "idobao/id67/rgb"
+        "target": "idobao/id67"
    },
    "id80": {
        "target": "idobao/id80/v2/ansi"
@ -884,6 +906,18 @@
    "kelowna/rgb64": {
        "target": "weirdo/kelowna/rgb64"
    },
+    "keychron/q0": {
+        "target": "keychron/q0/base"
+    },
+    "keychron/q1": {
+        "target": "keychron/q1v1/ansi"
+    }
+    "keychron/q4": {
+        "target": "keychron/q4/ansi/v1"
+    }
+    "kprepublic/bm40hsrgb": {
+        "target": "kprepublic/bm40hsrgb/rev1"
+    },
    "kprepublic/bm65hsrgb_iso": {
        "target": "kprepublic/bm65hsrgb_iso/rev1"
    },
@ -1184,6 +1218,12 @@
    "setta21": {
        "target": "salicylic_acid3/setta21"
    },
+    "soda/mango": {
+        "target": "magic_force/mf17"
+    },
+    "soda/pocket": {
+        "target": "magic_force/mf34"
+    },
    "space_space/rev1": {
        "target": "qpockets/space_space/rev1"
    },
@ -1208,6 +1248,9 @@
    "stella": {
        "target": "hnahkb/stella"
    },
+    "studiokestra/line_tkl": {
+        "target": "studiokestra/line_friends_tkl"
+    },
    "suihankey/alpha": {
        "target": "kakunpc/suihankey/alpha"
    },
@ -1236,7 +1279,7 @@
        "target": "marksard/treadstone48/rev2"
    },
    "tronguylabs/m122_3270": {
-        "target": "ibm/model_m_122/m122_3270"
+        "target": "ibm/model_m_122/m122_3270/teensy"
    },
    "ua62": {
        "target": "nacly/ua62"
@ -1290,7 +1333,7 @@
        "target": "ydkb/yd68"
    },
    "ymd75": {
-        "target": "ymdk/ymd75"
+        "target": "ymdk/ymd75/rev1"
    },
    "ymd96": {
        "target": "ymdk/ymd96"
@ -1312,5 +1355,9 @@
    },
    "zinc/reva": {
        "target": "25keys/zinc/reva"
+    },
+    // Moved during 2023 Q4 cycle
+    "ymdk/melody96": {
+        "target": "ymdk/melody96/soldered"
    }
 }
--- a/data/schemas/definitions.jsonschema
+++ b/data/schemas/definitions.jsonschema
@ -3,10 +3,25 @@
    "$id": "qmk.definitions.v1",
    "title": "Common definitions used across QMK's jsonschemas.",
    "type": "object",
+    "bcd_version": {
+        "type": "string",
+        "pattern": "^[0-9]{1,2}\\.[0-9]\\.[0-9]$"
+    },
+    "bit": {
+        "type": "integer",
+        "minimum": 0,
+        "maximum": 1
+    },
    "boolean_array": {
        "type": "object",
        "additionalProperties": {"type": "boolean"}
    },
+    "build_target": {
+        "oneOf": [
+            {"$ref": "#/keyboard_keymap_tuple"},
+            {"$ref": "#/json_file_path"}
+        ]
+    },
    "filename": {
        "type": "string",
        "minLength": 1,
@ -20,18 +35,56 @@
        "type": "string",
        "pattern": "^0x[0-9A-F]{4}$"
    },
-    "bcd_version": {
+    "json_file_path": {
        "type": "string",
-        "pattern": "^[0-9]{1,2}\\.[0-9]\\.[0-9]$"
+        "pattern": "^[0-9a-z_/\\-]+\\.json$"
    },
-    "text_identifier": {
-        "type": "string",
-        "minLength": 1,
-        "maxLength": 250
+    "key_unit": {
+        "type": "number"
    },
-    "snake_case": {
+    "keyboard": {
        "type": "string",
-        "pattern": "^[a-z][a-z0-9_]*$"
+        "pattern": "^[0-9a-z][0-9a-z_/]*$"
+    },
+    "keyboard_keymap_tuple": {
+        "type": "array",
+        "prefixItems": [
+            {"$ref": "#/keyboard"},
+            {"$ref": "#/filename"}
+        ],
+        "unevaluatedItems": false
+    },
+    "keycode": {
+        "type": "string",
+        "minLength": 2,
+        "maxLength": 50,
+        "pattern": "^[A-Z][A-Zs_0-9]*$"
+    },
+    "keycode_decl": {
+        "type": "object",
+        "required": [
+            "key"
+        ],
+        "properties": {
+            "key": {"$ref": "#/keycode"},
+            "label": {"$ref": "#/text_identifier"},
+            "aliases": {
+                "type": "array",
+                "minItems": 1,
+                "items": {"$ref": "#/keycode_short"}
+            }
+        }
+    },
+    "keycode_decl_array": {
+        "type": "array",
+        "minItems": 1,
+        "items": {"$ref": "#/keycode_decl"}
+    },
+    "keycode_short": {
+        "type": "string",
+        "minLength": 2,
+        "maxLength": 7,
+        "pattern": "^[A-Z][A-Zs_0-9]*$"
    },
    "layout_macro": {
        "oneOf": [
@ -68,49 +121,6 @@
            }
        ]
    },
-    "key_unit": {
-        "type": "number"
-    },
-    "keyboard": {
-        "type": "string",
-        "pattern": "^[0-9a-z][0-9a-z_/]*$"
-    },
-    "keycode": {
-        "type": "string",
-        "minLength": 2,
-        "maxLength": 50,
-        "pattern": "^[A-Z][A-Zs_0-9]*$"
-    },
-    "keycode_short": {
-        "type": "string",
-        "minLength": 2,
-        "maxLength": 7,
-        "pattern": "^[A-Z][A-Zs_0-9]*$"
-    },
-    "keycode_decl": {
-        "type": "object",
-        "required": [
-            "key"
-        ],
-        "properties": {
-            "key": {"$ref": "#/keycode"},
-            "label": {"$ref": "#/text_identifier"},
-            "aliases": {
-                "type": "array",
-                "minItems": 1,
-                "items": {"$ref": "#/keycode_short"}
-            }
-        }
-    },
-    "keycode_decl_array": {
-        "type": "array",
-        "minItems": 1
-        "items": {"$ref": "#/keycode_decl"}
-    },
-    "mcu_pin_array": {
-        "type": "array",
-        "items": {"$ref": "#/mcu_pin"}
-    },
    "mcu_pin": {
        "oneOf": [
            {
@ -129,14 +139,14 @@
                "type": "string",
                "pattern": "^GP\\d{1,2}$"
            },
-            {
-                "type": "integer"
-            },
-            {
-                "type": "null"
-            }
+            {"type": "integer"},
+            {"type": "null"}
        ]
    },
+    "mcu_pin_array": {
+        "type": "array",
+        "items": {"$ref": "#/mcu_pin"}
+    },
    "signed_decimal": {
        "type": "number"
    },
@ -148,17 +158,22 @@
        "minimum": -127,
        "maximum": 127
    },
+    "snake_case": {
+        "type": "string",
+        "pattern": "^[a-z][a-z0-9_]*$"
+    },
    "string_array": {
        "type": "array",
-        "items": {
-            "type": "string"
-        }
+        "items": {"type": "string"}
    },
    "string_object": {
        "type": "object",
-        "additionalProperties": {
-            "type": "string"
-        }
+        "additionalProperties": {"type": "string"}
+    },
+    "text_identifier": {
+        "type": "string",
+        "minLength": 1,
+        "maxLength": 250
    },
    "unsigned_decimal": {
        "type": "number",
@ -172,10 +187,5 @@
        "type": "integer",
        "minimum": 0,
        "maximum": 255
-    },
-    "bit": {
-        "type": "integer",
-        "minimum": 0,
-        "maximum": 1
    }
 }
--- a/data/schemas/keyboard.jsonschema
+++ b/data/schemas/keyboard.jsonschema
@ -20,7 +20,15 @@
                    }
                }
            }
-        }
+        },
+        "dip_switch_config": {
+            "type": "object",
+            "properties": {
+                "pins": {
+                    "$ref": "qmk.definitions.v1#/mcu_pin_array"
+                }
+            }
+        },
    },
    "type": "object",
    "not": { "required": [ "vendorId", "productId" ] }, // reject via keys...
@ -128,6 +136,15 @@
                    "type": "string",
                    "enum": ["pwm", "software", "timer", "custom"]
                },
+                "default": {
+                    "type": "object",
+                    "additionalProperties": false,
+                    "properties": {
+                        "on": {"type": "boolean"},
+                        "breathing": {"type": "boolean"},
+                        "brightness": {"$ref": "qmk.definitions.v1#/unsigned_int_8"}
+                    }
+                },
                "breathing": {"type": "boolean"},
                "breathing_period": {"$ref": "qmk.definitions.v1#/unsigned_int_8"},
                "levels": {
@ -245,9 +262,40 @@
            "type": "array",
            "items": {"$ref": "qmk.definitions.v1#/filename"}
        },
+        "dip_switch": {
+            "$ref": "#/definitions/dip_switch_config",
+            "properties": {
+                "enabled": {"type": "boolean"},
+                "matrix_grid": {
+                    "type": "array",
+                    "minItems": 1,
+                    "items": {
+                        "type": "array",
+                        "minItems": 2,
+                        "maxItems": 2,
+                        "items": {
+                            "type": "integer",
+                            "minimum": 0
+                        }
+                    }
+                }
+            }
+        },
        "eeprom": {
            "properties": {
-                "driver": {"type": "string"}
+                "driver": {"type": "string"},
+                "wear_leveling": {
+                    "type": "object",
+                    "additionalProperties": false,
+                    "properties": {
+                        "driver": {
+                            "type": "string",
+                            "enum": ["custom", "embedded_flash", "legacy", "rp2040_flash", "spi_flash"]
+                        },
+                        "backing_size": {"$ref": "qmk.definitions.v1#/unsigned_int"},
+                        "logical_size": {"$ref": "qmk.definitions.v1#/unsigned_int"}
+                    }
+                }
            }
        },
        "encoder": {
@ -300,6 +348,7 @@
                            "additionalProperties": false,
                            "required": ["x", "y"],
                            "properties": {
+                                "encoder": {"$ref": "qmk.definitions.v1#/unsigned_int"},
                                "label": {
                                    "type": "string",
                                    "pattern": "^[^\\n]*$"
@ -379,6 +428,16 @@
                        "type": "boolean"
                    }
                },
+                "default": {
+                    "type": "object",
+                    "additionalProperties": false,
+                    "properties": {
+                        "on": {"type": "boolean"},
+                        "animation": {"type": "string"},
+                        "val": {"$ref": "qmk.definitions.v1#/unsigned_int_8"},
+                        "speed": {"$ref": "qmk.definitions.v1#/unsigned_int_8"}
+                    }
+                },
                "driver": {"type": "string"},
                "center_point": {
                    "type": "array",
@ -390,6 +449,10 @@
                "timeout": {"$ref": "qmk.definitions.v1#/unsigned_int"},
                "val_steps": {"$ref": "qmk.definitions.v1#/unsigned_int"},
                "speed_steps": {"$ref": "qmk.definitions.v1#/unsigned_int"},
+                "led_flush_limit": {"$ref": "qmk.definitions.v1#/unsigned_int"},
+                "led_process_limit": {"$ref": "qmk.definitions.v1#/unsigned_int"},
+                "react_on_keyup": {"type": "boolean"},
+                "sleep": {"type": "boolean"},
                "split_count": {
                    "type": "array",
                    "minItems": 2,
@ -429,6 +492,18 @@
                        "type": "boolean"
                    }
                },
+                "default": {
+                    "type": "object",
+                    "additionalProperties": false,
+                    "properties": {
+                        "on": {"type": "boolean"},
+                        "animation": {"type": "string"},
+                        "hue": {"$ref": "qmk.definitions.v1#/unsigned_int_8"},
+                        "sat": {"$ref": "qmk.definitions.v1#/unsigned_int_8"},
+                        "val": {"$ref": "qmk.definitions.v1#/unsigned_int_8"},
+                        "speed": {"$ref": "qmk.definitions.v1#/unsigned_int_8"}
+                    }
+                },
                "driver": {"type": "string"},
                "center_point": {
                    "type": "array",
@ -442,6 +517,10 @@
                "sat_steps": {"$ref": "qmk.definitions.v1#/unsigned_int"},
                "val_steps": {"$ref": "qmk.definitions.v1#/unsigned_int"},
                "speed_steps": {"$ref": "qmk.definitions.v1#/unsigned_int"},
+                "led_flush_limit": {"$ref": "qmk.definitions.v1#/unsigned_int"},
+                "led_process_limit": {"$ref": "qmk.definitions.v1#/unsigned_int"},
+                "react_on_keyup": {"type": "boolean"},
+                "sleep": {"type": "boolean"},
                "split_count": {
                    "type": "array",
                    "minItems": 2,
@ -483,6 +562,18 @@
                    }
                },
                "brightness_steps": {"$ref": "qmk.definitions.v1#/unsigned_int"},
+                "default": {
+                    "type": "object",
+                    "additionalProperties": false,
+                    "properties": {
+                        "on": {"type": "boolean"},
+                        "animation": {"type": "string"},
+                        "hue": {"$ref": "qmk.definitions.v1#/unsigned_int_8"},
+                        "sat": {"$ref": "qmk.definitions.v1#/unsigned_int_8"},
+                        "val": {"$ref": "qmk.definitions.v1#/unsigned_int_8"},
+                        "speed": {"$ref": "qmk.definitions.v1#/unsigned_int_8"}
+                    }
+                },
                "driver": {
                    "type": "string",
                    "enum": ["apa102", "custom", "ws2812"]
@ -593,10 +684,6 @@
                        }
                    }
                },
-                "matrix_grid": {
-                    "type": "array",
-                    "items": {"$ref": "qmk.definitions.v1#/mcu_pin"}
-                },
                "matrix_pins": {
                    "type": "object",
                    "additionalProperties": false,
@ -616,6 +703,15 @@
                        }
                    }
                },
+                "dip_switch": {
+                    "type": "object",
+                    "additionalProperties": false,
+                    "properties": {
+                        "right": {
+                            "$ref": "#/definitions/dip_switch_config"
+                        }
+                    }
+                },
                "encoder": {
                    "type": "object",
                    "additionalProperties": false,
@ -625,9 +721,17 @@
                        }
                    }
                },
-                "main": {
-                    "type": "string",
-                    "enum": ["eeprom", "left", "matrix_grid", "pin", "right"]
+                "handedness": {
+                    "type": "object",
+                    "additionalProperties": false,
+                    "properties": {
+                        "pin": {"$ref": "qmk.definitions.v1#/mcu_pin"},
+                        "matrix_grid": {
+                            "$ref": "qmk.definitions.v1#/mcu_pin_array",
+                            "minItems": 2,
+                            "maxItems": 2
+                        }
+                    }
                },
                "soft_serial_pin": {"$ref": "qmk.definitions.v1#/mcu_pin"},
                "soft_serial_speed": {
@ -643,10 +747,32 @@
                            "type": "string",
                            "enum": ["custom", "i2c", "serial", "serial_usart"]
                        },
-                        "sync_matrix_state": {"type": "boolean"},
-                        "sync_modifiers": {"type": "boolean"},
+                        "sync": {
+                            "type": "object",
+                            "additionalProperties": false,
+                            "properties": {
+                                "activity": {"type": "boolean"},
+                                "detected_os": {"type": "boolean"},
+                                "haptic": {"type": "boolean"},
+                                "layer_state": {"type": "boolean"},
+                                "indicators": {"type": "boolean"},
+                                "matrix_state": {"type": "boolean"},
+                                "modifiers": {"type": "boolean"},
+                                "oled": {"type": "boolean"},
+                                "st7565": {"type": "boolean"},
+                                "wpm": {"type": "boolean"}
+                            }
+                        }
                        "watchdog": {"type": "boolean"},
-                        "watchdog_timeout": {"$ref": "qmk.definitions.v1#/unsigned_int"}
+                        "watchdog_timeout": {"$ref": "qmk.definitions.v1#/unsigned_int"},
+                        "sync_matrix_state": {
+                            "type": "boolean",
+                            "$comment": "Deprecated: use sync.matrix_state instead"
+                        },
+                        "sync_modifiers": {
+                            "type": "boolean",
+                            "$comment": "Deprecated: use sync.modifiers instead"
+                        }
                    }
                },
                "usb_detect": {
@ -657,6 +783,16 @@
                        "polling_interval": {"$ref": "qmk.definitions.v1#/unsigned_int"},
                        "timeout": {"$ref": "qmk.definitions.v1#/unsigned_int"}
                    }
+                },
+                "main": {
+                    "type": "string",
+                    "enum": ["eeprom", "left", "matrix_grid", "pin", "right"],
+                    "$comment": "Deprecated: use config.h options for now"
+                },
+                "matrix_grid": {
+                    "type": "array",
+                    "items": {"$ref": "qmk.definitions.v1#/mcu_pin"},
+                    "$comment": "Deprecated: use split.handedness.matrix_grid instead"
                }
            }
        },
@ -714,7 +850,15 @@
            "properties": {
                "keys_per_scan": {"$ref": "qmk.definitions.v1#/unsigned_int_8"},
                "tap_keycode_delay": {"$ref": "qmk.definitions.v1#/unsigned_int"},
-                "tap_capslock_delay": {"$ref": "qmk.definitions.v1#/unsigned_int"}
+                "tap_capslock_delay": {"$ref": "qmk.definitions.v1#/unsigned_int"},
+                "locking": {
+                    "type": "object",
+                    "additionalProperties": false,
+                    "properties": {
+                        "enabled": {"type": "boolean"},
+                        "resync": {"type": "boolean"}
+                    }
+                }
            }
        },
        "qmk_lufa_bootloader": {
--- a/data/schemas/user_repo_v0.jsonschema
+++ b/data/schemas/user_repo_v0.jsonschema
@ -0,0 +1,14 @@
+{
+    "$schema": "https://json-schema.org/draft/2020-12/schema#",
+    "$id": "qmk.user_repo.v0",
+    "title": "User Repository Information",
+    "type": "object",
+    "required": [
+        "userspace_version"
+    ],
+    "properties": {
+        "userspace_version": {
+            "type": "string",
+        },
+    }
+}
--- a/data/schemas/user_repo_v1.jsonschema
+++ b/data/schemas/user_repo_v1.jsonschema
@ -0,0 +1,22 @@
+{
+    "$schema": "https://json-schema.org/draft/2020-12/schema#",
+    "$id": "qmk.user_repo.v1",
+    "title": "User Repository Information",
+    "type": "object",
+    "required": [
+        "userspace_version",
+        "build_targets"
+    ],
+    "properties": {
+        "userspace_version": {
+            "type": "string",
+            "enum": ["1.0"]
+        },
+        "build_targets": {
+            "type": "array",
+            "items": {
+                "$ref": "qmk.definitions.v1#/build_target"
+            }
+        }
+    }
+}
--- a/docs/ChangeLog/20231126.md
+++ b/docs/ChangeLog/20231126.md
@ -0,0 +1,336 @@
+# QMK Breaking Changes - 2023 November 26 Changelog
+
+## Notable Features :id=notable-features
+
+As per last few breaking changes cycles, there have been _a lot_ of behind-the-scenes changes, mainly around consolidation of config into `info.json` files, cleanup of `info.json` files, cleaning up driver naming, as well as addressing technical debt.
+
+As a followup to last cycle's [notable changes](20230827.md#notable-changes), as `qmk/qmk_firmware` is no longer accepting PRs for keymaps we're pleased to announce that storing and building keymaps externally from the normal QMK Firmware repository is now possible. This is done through the new [External Userspace](newbs_external_userspace.md) feature, more details below!
+
+## Changes Requiring User Action :id=changes-requiring-user-action
+
+### Updated Keyboard Codebases :id=updated-keyboard-codebases
+
+| Old Keyboard Name                     | New Keyboard Name             |
+|---------------------------------------|-------------------------------|
+| adm42                                 | adm42/rev4                    |
+| dp3000                                | dp3000/rev1                   |
+| handwired/dactyl_manuform/dmote/62key | handwired/dmote               |
+| keychron/q0/rev_0130                  | keychron/q0/base              |
+| keychron/q0/rev_0131                  | keychron/q0/plus              |
+| keychron/q1/ansi                      | keychron/q1v1/ansi            |
+| keychron/q1/ansi_encoder              | keychron/q1v1/ansi_encoder    |
+| keychron/q1/iso                       | keychron/q1v1/iso             |
+| keychron/q1/iso_encoder               | keychron/q1v1/iso_encoder     |
+| keychron/q4/ansi_v1                   | keychron/q4/ansi              |
+| kprepublic/bm40hsrgb                  | kprepublic/bm40hsrgb/rev1     |
+| matchstickworks/southpad              | matchstickworks/southpad/rev2 |
+| soda/mango                            | magic_force/mf17              |
+| soda/pocket                           | magic_force/mf34              |
+| studiokestra/line_tkl                 | studiokestra/line_friends_tkl |
+| ymdk/melody96                         | ymdk/melody96/soldered        |
+
+## Notable core changes :id=notable-core
+
+### External Userspace ([#22222](https://github.com/qmk/qmk_firmware/pull/22222))
+
+As mentioned above, the new External Userspace feature allows for keymaps to be stored and built externally from the main QMK Firmware repository. This allows for keymaps to be stored separately -- usually in their own repository -- and for users to be able to maintain and build their keymaps without needing to fork the main QMK Firmware repository.
+
+See the [External Userspace documentation](newbs_external_userspace.md) for more details.
+
+A significant portion of user keymaps have already been removed from `qmk/qmk_firmware` and more will follow in coming weeks. You can still recover your keymap from the tag [user-keymaps-still-present](https://github.com/qmk/qmk_firmware/tree/user-keymaps-still-present) if required -- a perfect time to migrate to the new External Userspace!
+
+!> This feature is still in beta, and we're looking for feedback on it. Please try it out and let us know what you think -- a new `#help-userspace` channel has been set up on Discord.
+
+### Improve and Cleanup Shutdown callbacks ([#21060](https://github.com/qmk/qmk_firmware/pull/20160)) :id=improve-and-cleanup-shutdown-callbacks
+
+Shutdown callbacks at the keyboard level were never present, preventing safe shutdown sequencing for peripherals such as OLEDs, RGB LEDs, and other devices. This PR adds a new `shutdown_kb` function, as well as amending `shutdown_user`, allowing for safe shutdown of peripherals at both keyboard and keymap level.
+
+See the [Keyboard Shutdown/Reboot Code](custom_quantum_functions.md#keyboard-shutdown-reboot-code) documentation for more details.
+
+### OLED Force Flush ([#20953](https://github.com/qmk/qmk_firmware/pull/20953)) :id=oled-force-flush
+
+Along with the new `shutdown_kb` function, a new API `oled_render_dirty(bool)` function has been added. This allows OLED contents to be written deterministically when supplied with `true` -- that is, the OLED will be updated immediately, rather than waiting for the next OLED update cycle. This allows for OLEDs to show things such as "BOOTLOADER MODE" and the like if resetting to bootloader from QMK.
+
+### Switch statement helpers for keycode ranges ([#20059](https://github.com/qmk/qmk_firmware/pull/20059)) :id=switch-statement-helpers-for-keycode-ranges
+
+Predefined ranges usable within switch statements have been added for groups of similar keycodes, where people who wish to handle entire blocks at once can do so. This allows keymaps to be immune to changes in keycode values, and also allows for more efficient code generation.
+
+The ranges are as follows:
+
+| Name                                | Mapping                                                                |
+|-------------------------------------|------------------------------------------------------------------------|
+| `INTERNAL_KEYCODE_RANGE`            | `KC_NO ... KC_TRANSPARENT`                                             |
+| `BASIC_KEYCODE_RANGE`               | `KC_A ... KC_EXSEL`                                                    |
+| `SYSTEM_KEYCODE_RANGE`              | `KC_SYSTEM_POWER ... KC_SYSTEM_WAKE`                                   |
+| `CONSUMER_KEYCODE_RANGE`            | `KC_AUDIO_MUTE ... KC_LAUNCHPAD`                                       |
+| `MOUSE_KEYCODE_RANGE`               | `KC_MS_UP ... KC_MS_ACCEL2`                                            |
+| `MODIFIER_KEYCODE_RANGE`            | `KC_LEFT_CTRL ... KC_RIGHT_GUI`                                        |
+| `SWAP_HANDS_KEYCODE_RANGE`          | `QK_SWAP_HANDS_TOGGLE ... QK_SWAP_HANDS_ONE_SHOT`                      |
+| `MAGIC_KEYCODE_RANGE`               | `QK_MAGIC_SWAP_CONTROL_CAPS_LOCK ... QK_MAGIC_TOGGLE_ESCAPE_CAPS_LOCK` |
+| `MIDI_KEYCODE_RANGE`                | `QK_MIDI_ON ... QK_MIDI_PITCH_BEND_UP`                                 |
+| `SEQUENCER_KEYCODE_RANGE`           | `QK_SEQUENCER_ON ... QK_SEQUENCER_STEPS_CLEAR`                         |
+| `JOYSTICK_KEYCODE_RANGE`            | `QK_JOYSTICK_BUTTON_0 ... QK_JOYSTICK_BUTTON_31`                       |
+| `PROGRAMMABLE_BUTTON_KEYCODE_RANGE` | `QK_PROGRAMMABLE_BUTTON_1 ... QK_PROGRAMMABLE_BUTTON_32`               |
+| `AUDIO_KEYCODE_RANGE`               | `QK_AUDIO_ON ... QK_AUDIO_VOICE_PREVIOUS`                              |
+| `STENO_KEYCODE_RANGE`               | `QK_STENO_BOLT ... QK_STENO_COMB_MAX`                                  |
+| `MACRO_KEYCODE_RANGE`               | `QK_MACRO_0 ... QK_MACRO_31`                                           |
+| `BACKLIGHT_KEYCODE_RANGE`           | `QK_BACKLIGHT_ON ... QK_BACKLIGHT_TOGGLE_BREATHING`                    |
+| `RGB_KEYCODE_RANGE`                 | `RGB_TOG ... RGB_MODE_TWINKLE`                                         |
+| `QUANTUM_KEYCODE_RANGE`             | `QK_BOOTLOADER ... QK_ALT_REPEAT_KEY`                                  |
+| `KB_KEYCODE_RANGE`                  | `QK_KB_0 ... QK_KB_31`                                                 |
+| `USER_KEYCODE_RANGE`                | `QK_USER_0 ... QK_USER_31`                                             |
+
+Usage:
+
+```c
+    switch (keycode) {
+        case KC_A ... KC_EXSEL:
+        case KC_LEFT_CTRL ... KC_RIGHT_GUI:
+        /* do stuff with basic and modifier keycodes */
+```
+
+Becomes:
+
+```c
+    switch (keycode) {
+        case BASIC_KEYCODE_RANGE:
+        case MODIFIER_KEYCODE_RANGE:
+        /* do stuff with basic and modifier keycodes */
+```
+
+### Quantum Painter OLED support ([#19997](https://github.com/qmk/qmk_firmware/pull/19997)) :id=quantum-painter-oled-support
+
+Quantum Painter has picked up support for SH1106 displays -- commonly seen as 128x64 OLEDs. Support for both I2C and SPI displays is available.
+
+If you're already using OLED through `OLED_DRIVER_ENABLE = yes` or equivalent in `info.json` and wish to use Quantum Painter instead, you'll need to disable the old OLED system, instead enabling Quantum Painter as well as enabling the appropriate SH1106 driver. See the [Quantum Painter driver documentation](quantum_painter.md#quantum-painter-drivers) for more details. The old OLED driver is still available, and keymaps do not require migrating to Quantum Painter if you don't want to do so.
+
+### RGB/LED lighting driver naming and cleanup ([#21890](https://github.com/qmk/qmk_firmware/pull/21890), [#21891](https://github.com/qmk/qmk_firmware/pull/21891), [#21892](https://github.com/qmk/qmk_firmware/pull/21892), [#21903](https://github.com/qmk/qmk_firmware/pull/21903), [#21904](https://github.com/qmk/qmk_firmware/pull/21904), [#21905](https://github.com/qmk/qmk_firmware/pull/21905), [#21918](https://github.com/qmk/qmk_firmware/pull/21918), [#21929](https://github.com/qmk/qmk_firmware/pull/21929), [#21938](https://github.com/qmk/qmk_firmware/pull/21938), [#22004](https://github.com/qmk/qmk_firmware/pull/22004), [#22008](https://github.com/qmk/qmk_firmware/pull/22008), [#22009](https://github.com/qmk/qmk_firmware/pull/22009), [#22071](https://github.com/qmk/qmk_firmware/pull/22071), [#22090](https://github.com/qmk/qmk_firmware/pull/22090), [#22099](https://github.com/qmk/qmk_firmware/pull/22099), [#22126](https://github.com/qmk/qmk_firmware/pull/22126), [#22133](https://github.com/qmk/qmk_firmware/pull/22133), [#22163](https://github.com/qmk/qmk_firmware/pull/22163), [#22200](https://github.com/qmk/qmk_firmware/pull/22200), [#22308](https://github.com/qmk/qmk_firmware/pull/22308), [#22309](https://github.com/qmk/qmk_firmware/pull/22309), [#22311](https://github.com/qmk/qmk_firmware/pull/22311), [#22325](https://github.com/qmk/qmk_firmware/pull/22325), [#22365](https://github.com/qmk/qmk_firmware/pull/22365), [#22379](https://github.com/qmk/qmk_firmware/pull/22379), [#22380](https://github.com/qmk/qmk_firmware/pull/22380), [#22381](https://github.com/qmk/qmk_firmware/pull/22381), [#22383](https://github.com/qmk/qmk_firmware/pull/22383), [#22436](https://github.com/qmk/qmk_firmware/pull/22436))
+
+As you can probably tell by the list of PRs just above, there has been a lot of cleanup and consolidation this cycle when it comes to RGB/LED lighting drivers. The number of changes is too large to list here, but the general theme has been focusing on consistency of naming, both of drivers themselves and their respective implementation and configuration. Most changes only affect keyboard designers -- if you find that your in-development keyboard is no longer building due to naming of defines changing, your best bet is to refer to another board already in the repository which has had the changes applied.
+
+### Peripheral subsystem enabling ([#22253](https://github.com/qmk/qmk_firmware/pull/22253), [#22448](https://github.com/qmk/qmk_firmware/pull/22448), [#22106](https://github.com/qmk/qmk_firmware/pull/22106)) :id=peripheral-subsystem-enabling
+
+When enabling peripherals such as I2C, SPI, or Analog/ADC, some required manual inclusion of source files in order to provide driver support, and in some cases, when multiple drivers were using the same underlying peripheral, files were being added to the build multiple times.
+
+Most systems requiring other peripherals now mark their respective dependencies as "required", allowing the build system to check whether peripherals are necessary before including them in the build rather than having each location enable them manually.
+
+For a concrete example, users or keyboard designers who previously added `SRC += analog.c` in order to allow for analog readings via an ADC now should specify `ANALOG_DRIVER_REQUIRED = yes` instead. The full list of added options is as follows:
+
+| New option                     | Old Equivalent                                             |
+|--------------------------------|------------------------------------------------------------|
+| `ANALOG_DRIVER_REQUIRED = yes` | `SRC += analog.c`                                          |
+| `APA102_DRIVER_REQUIRED = yes` | `SRC += apa102.c`                                          |
+| `I2C_DRIVER_REQUIRED = yes`    | `SRC += i2c_master.c` or `QUANTUM_LIB_SRC += i2c_master.c` |
+| `SPI_DRIVER_REQUIRED = yes`    | `SRC += spi_master.c` or `QUANTUM_LIB_SRC += spi_master.c` |
+| `UART_DRIVER_REQUIRED = yes`   | `SRC += uart.c`                                            |
+| `WS2812_DRIVER_REQUIRED = yes` | `SRC += ws2812.c`                                          |
+
+### NKRO on V-USB boards ([#22398](https://github.com/qmk/qmk_firmware/pull/22398)) :id=vusb-nkro
+
+NKRO is now available for ATmega32A and 328P-based keyboards (including PS2AVRGB/Bootmapper boards), thanks to some internal refactoring and cleanup. To enable it, the process is the same as always - add `NKRO_ENABLE = yes` to your `rules.mk`, then assign and press the `NK_TOGG` keycode to switch modes.
+
+## Full changelist :id=full-changelist
+
+Core:
+* Compilation warning if both `keymap.json` and `keymap.c` exist ([#19939](https://github.com/qmk/qmk_firmware/pull/19939))
+* [QP] Add support for OLED, variable framebuffer bpp ([#19997](https://github.com/qmk/qmk_firmware/pull/19997))
+* Generate switch statement helpers for keycode ranges ([#20059](https://github.com/qmk/qmk_firmware/pull/20059))
+* Chibios SPI driver: allow some SPI pins to be left unassigned ([#20315](https://github.com/qmk/qmk_firmware/pull/20315))
+* Take care of scroll divisor remainders for PS/2 drag scroll ([#20732](https://github.com/qmk/qmk_firmware/pull/20732))
+* Add `RGBLIGHT_DEFAULT_ON` macro configuration option ([#20857](https://github.com/qmk/qmk_firmware/pull/20857))
+* Allow force flush of oled display. ([#20953](https://github.com/qmk/qmk_firmware/pull/20953))
+* Improve and Cleanup Shutdown callbacks ([#21060](https://github.com/qmk/qmk_firmware/pull/21060))
+* [Enhancement] QP Getters ([#21171](https://github.com/qmk/qmk_firmware/pull/21171))
+* Russian typewriter keymap file for popular legacy layout. ([#21174](https://github.com/qmk/qmk_firmware/pull/21174))
+* Improve directional transition of overlapping mouse keys ([#21494](https://github.com/qmk/qmk_firmware/pull/21494))
+* Add full solenoid support on split keyboards ([#21583](https://github.com/qmk/qmk_firmware/pull/21583))
+* Reduce popping during audio initialization using the additive DAC ([#21642](https://github.com/qmk/qmk_firmware/pull/21642))
+* [Maintenance] USB HID control packet as struct ([#21688](https://github.com/qmk/qmk_firmware/pull/21688))
+* Bump mouse endpoint packet size to 16 bytes ([#21711](https://github.com/qmk/qmk_firmware/pull/21711))
+* Allow customizing PWM frequency ([#21717](https://github.com/qmk/qmk_firmware/pull/21717))
+* Add simpler method for relocating functions to RAM. ([#21804](https://github.com/qmk/qmk_firmware/pull/21804))
+* Clean up RGB LED type ([#21859](https://github.com/qmk/qmk_firmware/pull/21859))
+* is31fl3741: Allow changing config register ([#21861](https://github.com/qmk/qmk_firmware/pull/21861))
+* Add _DEFAULT_ON lighting configuration options ([#21865](https://github.com/qmk/qmk_firmware/pull/21865))
+* Modify split config is_keyboard_master/left checks. ([#21875](https://github.com/qmk/qmk_firmware/pull/21875))
+* Remove old `IS_LED_ON/OFF()` macros ([#21878](https://github.com/qmk/qmk_firmware/pull/21878))
+* ckled2001: driver naming cleanups ([#21890](https://github.com/qmk/qmk_firmware/pull/21890))
+* aw20216: driver naming cleanups ([#21891](https://github.com/qmk/qmk_firmware/pull/21891))
+* is31fl3218: driver naming cleanups ([#21892](https://github.com/qmk/qmk_firmware/pull/21892))
+* is31fl3736: driver naming cleanups ([#21903](https://github.com/qmk/qmk_firmware/pull/21903))
+* is31fl3737: driver naming cleanups ([#21904](https://github.com/qmk/qmk_firmware/pull/21904))
+* is31fl3733: driver naming cleanups ([#21905](https://github.com/qmk/qmk_firmware/pull/21905))
+* Enable RP2040 support for apa102 RGB LED driver ([#21908](https://github.com/qmk/qmk_firmware/pull/21908))
+* is31fl3731: driver naming cleanups ([#21918](https://github.com/qmk/qmk_firmware/pull/21918))
+* is31fl3741: driver naming cleanups ([#21929](https://github.com/qmk/qmk_firmware/pull/21929))
+* refactor: move default RGB/LED matrix #defines ([#21938](https://github.com/qmk/qmk_firmware/pull/21938))
+* Added flower blooming on RGB Matrix effect ([#21948](https://github.com/qmk/qmk_firmware/pull/21948))
+* Remove 'Firmware size check does not yet support' message ([#21977](https://github.com/qmk/qmk_firmware/pull/21977))
+* chibios: mark boot2 bootlader data readonly ([#21986](https://github.com/qmk/qmk_firmware/pull/21986))
+* Complete RGB Matrix support for IS31FL3218 ([#22004](https://github.com/qmk/qmk_firmware/pull/22004))
+* Default wear leveling logical size to half backing ([#22006](https://github.com/qmk/qmk_firmware/pull/22006))
+* chibios: disable RWX segment warning on newer GNU lds ([#22007](https://github.com/qmk/qmk_firmware/pull/22007))
+* Add and use I2C address defines for ISSI LED drivers ([#22008](https://github.com/qmk/qmk_firmware/pull/22008))
+* Add and use PWM frequency defines for ISSI LED drivers ([#22009](https://github.com/qmk/qmk_firmware/pull/22009))
+* directly use object files when linking ELF ([#22025](https://github.com/qmk/qmk_firmware/pull/22025))
+* Lvgl rate control ([#22049](https://github.com/qmk/qmk_firmware/pull/22049))
+* Rename CKLED2001 driver to SNLED27351 ([#22071](https://github.com/qmk/qmk_firmware/pull/22071))
+* Move `PACKED` define to util.h ([#22074](https://github.com/qmk/qmk_firmware/pull/22074))
+* Simplify more feature driver defines ([#22090](https://github.com/qmk/qmk_firmware/pull/22090))
+* Update ISSI LED types ([#22099](https://github.com/qmk/qmk_firmware/pull/22099))
+* Move velocikey to within rgblight ([#22123](https://github.com/qmk/qmk_firmware/pull/22123))
+* is31fl3218: Add LED Matrix support ([#22126](https://github.com/qmk/qmk_firmware/pull/22126))
+* Set default board files for uf2boot bootloader ([#22129](https://github.com/qmk/qmk_firmware/pull/22129))
+* is31fl3736: extract single-color API ([#22133](https://github.com/qmk/qmk_firmware/pull/22133))
+* is31fl3737/3741: add LED Matrix support ([#22163](https://github.com/qmk/qmk_firmware/pull/22163))
+* Rename `DRIVER_ADDR_n` defines ([#22200](https://github.com/qmk/qmk_firmware/pull/22200))
+* New RGB Animations - 4 "Starlight" Animation Variations ([#22212](https://github.com/qmk/qmk_firmware/pull/22212))
+* QMK Userspace ([#22222](https://github.com/qmk/qmk_firmware/pull/22222))
+* Dedupe I2C, SPI, UART driver inclusions ([#22253](https://github.com/qmk/qmk_firmware/pull/22253))
+* Add "AC Next Keyboard Layout Select" consumer usage entry (macOS Globe key) ([#22256](https://github.com/qmk/qmk_firmware/pull/22256))
+* Separate 6KRO and NKRO report structs ([#22267](https://github.com/qmk/qmk_firmware/pull/22267))
+* Azoteq IQS5xx support ([#22280](https://github.com/qmk/qmk_firmware/pull/22280))
+* Add `_flush()` functions to LED drivers ([#22308](https://github.com/qmk/qmk_firmware/pull/22308))
+* Add `_LED_COUNT` defines to LED drivers ([#22309](https://github.com/qmk/qmk_firmware/pull/22309))
+* Infer LED DRIVER_COUNT from configured addresses ([#22311](https://github.com/qmk/qmk_firmware/pull/22311))
+* Added gamma values for ST7735 displays ([#22313](https://github.com/qmk/qmk_firmware/pull/22313))
+* Consolidate some EEPROM Driver configuration ([#22321](https://github.com/qmk/qmk_firmware/pull/22321))
+* V-USB: Add generic `send_report()` function ([#22323](https://github.com/qmk/qmk_firmware/pull/22323))
+* V-USB: Implement `GET_PROTOCOL` and `SET_PROTOCOL` handling ([#22324](https://github.com/qmk/qmk_firmware/pull/22324))
+* RGB/LED matrix use limits size optimisation ([#22325](https://github.com/qmk/qmk_firmware/pull/22325))
+* Relocate LED driver init code ([#22365](https://github.com/qmk/qmk_firmware/pull/22365))
+* WT RGB cleanups ([#22379](https://github.com/qmk/qmk_firmware/pull/22379))
+* LED drivers: use `PACKED` define from util.h ([#22380](https://github.com/qmk/qmk_firmware/pull/22380))
+* LED drivers: clean up `SWx`/`CSy` pullup/down resistor config ([#22381](https://github.com/qmk/qmk_firmware/pull/22381))
+* LED drivers: add defines for PWM and LED control register counts ([#22383](https://github.com/qmk/qmk_firmware/pull/22383))
+* V-USB: implement NKRO ([#22398](https://github.com/qmk/qmk_firmware/pull/22398))
+* Allow generic_features to handle subdirectories ([#22400](https://github.com/qmk/qmk_firmware/pull/22400))
+* Migrate some common features to generic ([#22403](https://github.com/qmk/qmk_firmware/pull/22403))
+* Remove requirement for `keymap_steno.h` include in keymaps ([#22423](https://github.com/qmk/qmk_firmware/pull/22423))
+* LED drivers: register naming cleanups ([#22436](https://github.com/qmk/qmk_firmware/pull/22436))
+* Slight refactor of joystick axis type into typedef ([#22445](https://github.com/qmk/qmk_firmware/pull/22445))
+* Generalise analog SRC inclusion ([#22448](https://github.com/qmk/qmk_firmware/pull/22448))
+* Revert "chibios: disable RWX segment warning on newer GNU lds" ([#22469](https://github.com/qmk/qmk_firmware/pull/22469))
+* chibios: disable RWX segment warning on newer GNU lds ([#22471](https://github.com/qmk/qmk_firmware/pull/22471))
+
+CLI:
+* Implement data driven lighting defaults ([#21825](https://github.com/qmk/qmk_firmware/pull/21825))
+* Generate keymap.json config options more forcefully ([#21960](https://github.com/qmk/qmk_firmware/pull/21960))
+* Implement data driven dip switches ([#22017](https://github.com/qmk/qmk_firmware/pull/22017))
+* Improve argument handling of c2json ([#22170](https://github.com/qmk/qmk_firmware/pull/22170))
+* Support additional split sync items for info.json ([#22193](https://github.com/qmk/qmk_firmware/pull/22193))
+* CLI refactoring for common build target APIs ([#22221](https://github.com/qmk/qmk_firmware/pull/22221))
+* Add dd mapping for hardware based split handedness ([#22369](https://github.com/qmk/qmk_firmware/pull/22369))
+* CLI parallel search updates ([#22525](https://github.com/qmk/qmk_firmware/pull/22525))
+* Remove duplicates from search results ([#22528](https://github.com/qmk/qmk_firmware/pull/22528))
+
+Keyboards:
+* Add KPRepublic/BM40hsrgb rev2 ([#16689](https://github.com/qmk/qmk_firmware/pull/16689))
+* update to data driven - superseeds part of https://github.com/qmk/qmk… ([#20220](https://github.com/qmk/qmk_firmware/pull/20220))
+* Modernize `dactyl_manuform/dmote` keyboard ([#20427](https://github.com/qmk/qmk_firmware/pull/20427))
+* add Skyloong/GK61_V1 keyboard ([#21364](https://github.com/qmk/qmk_firmware/pull/21364))
+* [Refactor] Make changes to some pins ([#21380](https://github.com/qmk/qmk_firmware/pull/21380))
+* Add missing fullsize extended default layouts ([#21402](https://github.com/qmk/qmk_firmware/pull/21402))
+* Add Skyloong/Gk61 PRO keyboard ([#21450](https://github.com/qmk/qmk_firmware/pull/21450))
+* Added skyloong/Qk21 v1 Number Pad ([#21467](https://github.com/qmk/qmk_firmware/pull/21467))
+* matchstickworks/southpad - Move files to rev1, add rev2 ([#21574](https://github.com/qmk/qmk_firmware/pull/21574))
+* partially modernize `dactyl_minidox` ([#21576](https://github.com/qmk/qmk_firmware/pull/21576))
+* tominabox1/le_chiffre oled rework ([#21611](https://github.com/qmk/qmk_firmware/pull/21611))
+* Add Skyloong/Gk61_pro_48 keyboard ([#21654](https://github.com/qmk/qmk_firmware/pull/21654))
+* Adding support for new Waffling60 revision ([#21664](https://github.com/qmk/qmk_firmware/pull/21664))
+* Leeloo revision 2 updates. ([#21671](https://github.com/qmk/qmk_firmware/pull/21671))
+* rename og60 to tofu60 ([#21684](https://github.com/qmk/qmk_firmware/pull/21684))
+* add tofujr v2 keyboard ([#21740](https://github.com/qmk/qmk_firmware/pull/21740))
+* Rotary numpad ([#21744](https://github.com/qmk/qmk_firmware/pull/21744))
+* Update era/divine ([#21767](https://github.com/qmk/qmk_firmware/pull/21767))
+* 1UpKeyboards Pi60 Layout Additions ([#21874](https://github.com/qmk/qmk_firmware/pull/21874))
+* BIOI keyboards: use core UART driver ([#21879](https://github.com/qmk/qmk_firmware/pull/21879))
+* Resolve some "Layout should not contain name of keyboard" lint warnings ([#21898](https://github.com/qmk/qmk_firmware/pull/21898))
+* fc660c/fc980c: clean up actuation point adjustment code ([#21964](https://github.com/qmk/qmk_firmware/pull/21964))
+* Chromatonemini info json revised to support qmk 0.22.2 ([#21966](https://github.com/qmk/qmk_firmware/pull/21966))
+* Migrate spi_flash WEAR_LEVELING_DRIVER to info.json ([#21978](https://github.com/qmk/qmk_firmware/pull/21978))
+* Remove duplication of RP2040 EEPROM defaults ([#21979](https://github.com/qmk/qmk_firmware/pull/21979))
+* Remove duplication of STM32L432 EEPROM defaults ([#21981](https://github.com/qmk/qmk_firmware/pull/21981))
+* Migrate spi EEPROM_DRIVER to info.json ([#21991](https://github.com/qmk/qmk_firmware/pull/21991))
+* Update Keychron Q1v1 ([#21993](https://github.com/qmk/qmk_firmware/pull/21993))
+* Update Keychron Q2 ([#21994](https://github.com/qmk/qmk_firmware/pull/21994))
+* Update Keychron Q3 ([#21995](https://github.com/qmk/qmk_firmware/pull/21995))
+* Update Keychron Q4 ([#21996](https://github.com/qmk/qmk_firmware/pull/21996))
+* Migrate WEAR_LEVELING_*_SIZE to info.json ([#22010](https://github.com/qmk/qmk_firmware/pull/22010))
+* Remove duplication of EEPROM defaults ([#22011](https://github.com/qmk/qmk_firmware/pull/22011))
+* Migrate i2c EEPROM_DRIVER to info.json ([#22013](https://github.com/qmk/qmk_firmware/pull/22013))
+* Remove config.h which only set DYNAMIC_KEYMAP_LAYER_COUNT ([#22034](https://github.com/qmk/qmk_firmware/pull/22034))
+* Add community layout support to tofu60 ([#22041](https://github.com/qmk/qmk_firmware/pull/22041))
+* Update Keychron Q0 ([#22068](https://github.com/qmk/qmk_firmware/pull/22068))
+* Remove custom ISSI lighting code ([#22073](https://github.com/qmk/qmk_firmware/pull/22073))
+* add dp3000 rev2 featuring rgblight ([#22084](https://github.com/qmk/qmk_firmware/pull/22084))
+* Remove ALLOW_WARNINGS and PICO_INTRINSICS_ENABLED ([#22085](https://github.com/qmk/qmk_firmware/pull/22085))
+* Partially migrate `DYNAMIC_KEYMAP_LAYER_COUNT` ([#22087](https://github.com/qmk/qmk_firmware/pull/22087))
+* feat(eyeohdesigns/babyv): rgb matrix ([#22105](https://github.com/qmk/qmk_firmware/pull/22105))
+* input_club/infinity60: remove custom 3731 code, convert to LED Matrix ([#22117](https://github.com/qmk/qmk_firmware/pull/22117))
+* YMDK Melody96 Break-Up ([#22121](https://github.com/qmk/qmk_firmware/pull/22121))
+* Remove duplicated rgblight implementation from mxss ([#22122](https://github.com/qmk/qmk_firmware/pull/22122))
+* KC60 Layout Standardization and Cleanup ([#22125](https://github.com/qmk/qmk_firmware/pull/22125))
+* Convert adm42 to data driven ([#22144](https://github.com/qmk/qmk_firmware/pull/22144))
+* Update Drop keyboards for develop ([#22145](https://github.com/qmk/qmk_firmware/pull/22145))
+* move soda/mango and soda/pocket to magic_force/mf17 and magic_force/mf34 ([#22151](https://github.com/qmk/qmk_firmware/pull/22151))
+* GMMK2 65% ISO Community Layout Support ([#22152](https://github.com/qmk/qmk_firmware/pull/22152))
+* Leeloo v2.1 revision 3 updates. ([#22236](https://github.com/qmk/qmk_firmware/pull/22236))
+* jian/rev1: convert to DIP Switch ([#22248](https://github.com/qmk/qmk_firmware/pull/22248))
+* Enable linking of encoders to switch within layout macros ([#22264](https://github.com/qmk/qmk_firmware/pull/22264))
+* Migrate recently introduced sync items ([#22305](https://github.com/qmk/qmk_firmware/pull/22305))
+* Rename LINE FRIENDS TKL keyboard ([#22310](https://github.com/qmk/qmk_firmware/pull/22310))
+* feat(mechwild/clunker): new layouts ([#22342](https://github.com/qmk/qmk_firmware/pull/22342))
+* Remove use of broken split.main ([#22363](https://github.com/qmk/qmk_firmware/pull/22363))
+* whitefox: remove pointless file ([#22366](https://github.com/qmk/qmk_firmware/pull/22366))
+* Migrate some EEPROM config to info.json ([#22434](https://github.com/qmk/qmk_firmware/pull/22434))
+* Remove unnecessary driver counts ([#22435](https://github.com/qmk/qmk_firmware/pull/22435))
+* Migrate some dip switch config to info.json ([#22437](https://github.com/qmk/qmk_firmware/pull/22437))
+* Remove userspace keymaps ([#22544](https://github.com/qmk/qmk_firmware/pull/22544))
+* Stub out community layout directory structure ([#22545](https://github.com/qmk/qmk_firmware/pull/22545))
+* Remove symbolic linked userspace folder ([#22548](https://github.com/qmk/qmk_firmware/pull/22548))
+
+Keyboard fixes:
+* fix unxmaal for 60_iso ([#21975](https://github.com/qmk/qmk_firmware/pull/21975))
+* Fix input_club/k_type when RGB Matrix disabled ([#22021](https://github.com/qmk/qmk_firmware/pull/22021))
+* Fixup snes_macropad on develop ([#22444](https://github.com/qmk/qmk_firmware/pull/22444))
+* Fix missed shutdown callbacks ([#22549](https://github.com/qmk/qmk_firmware/pull/22549))
+
+Others:
+* Implement data driven wear leveling ([#21906](https://github.com/qmk/qmk_firmware/pull/21906))
+* More data driven RGB/LED Matrix config ([#21939](https://github.com/qmk/qmk_firmware/pull/21939))
+* Update WS2812 docs and add APA102 docs ([#22106](https://github.com/qmk/qmk_firmware/pull/22106))
+* Add DD mappings for locking switch ([#22242](https://github.com/qmk/qmk_firmware/pull/22242))
+
+Bugs:
+* Improve test invocation, fix Retro Shift bugs, and add Auto+Retro Shift test cases ([#15889](https://github.com/qmk/qmk_firmware/pull/15889))
+* [Bugfix] `qp_ellipse` overflow ([#19005](https://github.com/qmk/qmk_firmware/pull/19005))
+* Cater for ECC failures in EFL wear-leveling. ([#19749](https://github.com/qmk/qmk_firmware/pull/19749))
+* Fix OSM on a OSL activated layer ([#20410](https://github.com/qmk/qmk_firmware/pull/20410))
+* Fixed WB32 MCU remote wakeup issue ([#20863](https://github.com/qmk/qmk_firmware/pull/20863))
+* Optimize the additive DAC code, fixing performance-related hangs ([#21662](https://github.com/qmk/qmk_firmware/pull/21662))
+* [Enhancement] Improvements for debounce test coverage + bug fixes for sym_defer_g and sym_eager_pr ([#21667](https://github.com/qmk/qmk_firmware/pull/21667))
+* fix: make clicky delay silent ([#21866](https://github.com/qmk/qmk_firmware/pull/21866))
+* Add `mousekey.h` include to `quantum.h` ([#21897](https://github.com/qmk/qmk_firmware/pull/21897))
+* Fix default layer value in eeconfig_init ([#21909](https://github.com/qmk/qmk_firmware/pull/21909))
+* Add RTC IRQ Priority to RP2040 board files ([#21926](https://github.com/qmk/qmk_firmware/pull/21926))
+* Update AW20216S LED type ([#22072](https://github.com/qmk/qmk_firmware/pull/22072))
+* LED/RGB Matrix: prefix driver defines ([#22088](https://github.com/qmk/qmk_firmware/pull/22088))
+* RGBLight/Backlight: add prefixed driver defines ([#22089](https://github.com/qmk/qmk_firmware/pull/22089))
+* Fix lower cpi bound on PMW33XX ([#22108](https://github.com/qmk/qmk_firmware/pull/22108))
+* Fix parsing/validation for 21939 ([#22148](https://github.com/qmk/qmk_firmware/pull/22148))
+* is31fl3733: complete LED Matrix support ([#22149](https://github.com/qmk/qmk_firmware/pull/22149))
+* Fix memory leak in realloc failure handling ([#22188](https://github.com/qmk/qmk_firmware/pull/22188))
+* avrdude: Version 7.2 changes the text output ([#22235](https://github.com/qmk/qmk_firmware/pull/22235))
+* Resolve invalid keyboard alias targets ([#22239](https://github.com/qmk/qmk_firmware/pull/22239))
+* Prep work for NKRO report separation ([#22268](https://github.com/qmk/qmk_firmware/pull/22268))
+* ChibiOS pin defs: use only vendor if present ([#22297](https://github.com/qmk/qmk_firmware/pull/22297))
+* Fix invalid LED driver config ([#22312](https://github.com/qmk/qmk_firmware/pull/22312))
+* Fix compilation error when led/rgb process limit is zero. ([#22328](https://github.com/qmk/qmk_firmware/pull/22328))
+* V-USB: Fix `GET_IDLE/SET_IDLE` ([#22332](https://github.com/qmk/qmk_firmware/pull/22332))
+* QP getters correction ([#22357](https://github.com/qmk/qmk_firmware/pull/22357))
+* Fix 'to_c' for config.h mappings ([#22364](https://github.com/qmk/qmk_firmware/pull/22364))
+* snled27351: fix missing `i2c_init()` ([#22446](https://github.com/qmk/qmk_firmware/pull/22446))
+* Move BACKLIGHT_PWM_PERIOD to correct docs section ([#22480](https://github.com/qmk/qmk_firmware/pull/22480))
+* `qmk find`: Fix failure with multiple filters ([#22497](https://github.com/qmk/qmk_firmware/pull/22497))
+* Fix `qmk find` failure due to circular imports ([#22523](https://github.com/qmk/qmk_firmware/pull/22523))
--- a/docs/_summary.md
+++ b/docs/_summary.md
@ -4,7 +4,7 @@
  * [Building Your First Firmware](newbs_building_firmware.md)
  * [Flashing Firmware](newbs_flashing.md)
  * [Getting Help/Support](support.md)
-  * [Building With GitHub Userspace](newbs_building_firmware_workflow.md)
+  * [External Userspace](newbs_external_userspace.md)
  * [Other Resources](newbs_learn_more_resources.md)
  * [Syllabus](syllabus.md)

@ -126,7 +126,6 @@
    * [PS/2 Mouse](feature_ps2_mouse.md)
    * [Split Keyboard](feature_split_keyboard.md)
    * [Stenography](feature_stenography.md)
-    * [Velocikey](feature_velocikey.md)

  * Keyboard Building
    * [Easy Maker for One Offs](easy_maker.md)
@ -139,7 +138,7 @@
  * Breaking Changes
    * [Overview](breaking_changes.md)
    * [My Pull Request Was Flagged](breaking_changes_instructions.md)
-    * [Most Recent ChangeLog](ChangeLog/20230827.md "QMK v0.22.0 - 2023 Aug 27")
+    * [Most Recent ChangeLog](ChangeLog/20231126.md "QMK v0.23.0 - 2023 Nov 26")
    * [Past Breaking Changes](breaking_changes_history.md)

  * C Development
@ -148,6 +147,7 @@
    * [Compatible Microcontrollers](compatible_microcontrollers.md)
    * [Drivers](hardware_drivers.md)
      * [ADC Driver](adc_driver.md)
+      * [APA102 Driver](apa102_driver.md)
      * [Audio Driver](audio_driver.md)
      * [I2C Driver](i2c_driver.md)
      * [SPI Driver](spi_driver.md)
--- a/docs/adc_driver.md
+++ b/docs/adc_driver.md
@ -9,7 +9,7 @@ This driver currently supports both AVR and a limited selection of ARM devices.
 To use this driver, add the following to your `rules.mk`:

 ```make
-SRC += analog.c
+ANALOG_DRIVER_REQUIRED = yes
 ```

 Then place this include at the top of your code:
--- a/docs/apa102_driver.md
+++ b/docs/apa102_driver.md
@ -0,0 +1,49 @@
+# APA102 Driver :id=apa102-driver
+
+This driver provides support for APA102 addressable RGB LEDs. They are similar to the [WS2812](ws2812_driver.md) LEDs, but have increased data and refresh rates.
+
+## Usage :id=usage
+
+In most cases, the APA102 driver code is automatically included if you are using either the [RGBLight](feature_rgblight.md) or [RGB Matrix](feature_rgb_matrix.md) feature with the `apa102` driver set, and you would use those APIs instead.
+
+However, if you need to use the driver standalone, add the following to your `rules.mk`:
+
+```make
+APA102_DRIVER_REQUIRED = yes
+```
+
+You can then call the APA102 API by including `apa102.h` in your code.
+
+## Basic Configuration :id=basic-configuration
+
+Add the following to your `config.h`:
+
+|Define                     |Default      |Description                                                       |
+|---------------------------|-------------|------------------------------------------------------------------|
+|`APA102_DI_PIN`            |*Not defined*|The GPIO pin connected to the DI pin of the first LED in the chain|
+|`APA102_CI_PIN`            |*Not defined*|The GPIO pin connected to the CI pin of the first LED in the chain|
+|`APA102_DEFAULT_BRIGHTNESS`|`31`         |The default global brightness level of the LEDs, from 0 to 31     |
+
+## API :id=api
+
+### `void apa102_setleds(rgb_led_t *start_led, uint16_t num_leds)`
+
+Send RGB data to the APA102 LED chain.
+
+#### Arguments :id=api-apa102-setleds-arguments
+
+ - `rgb_led_t *start_led`  
+   A pointer to the LED array.
+ - `uint16_t num_leds`  
+   The length of the LED array.
+
+---
+
+### `void apa102_set_brightness(uint8_t brightness)`
+
+Set the global brightness.
+
+#### Arguments :id=api-apa102-set-brightness-arguments
+
+ - `uint8_t brightness`  
+   The brightness level to set, from 0 to 31.
--- a/docs/breaking_changes.md
+++ b/docs/breaking_changes.md
@ -10,9 +10,9 @@ Practically, this means QMK merges the `develop` branch into the `master` branch

 ## What has been included in past Breaking Changes?

+* [2023 Nov 26](ChangeLog/20231126.md)
 * [2023 Aug 27](ChangeLog/20230827.md)
 * [2023 May 28](ChangeLog/20230528.md)
-* [2023 Feb 26](ChangeLog/20230226.md)
 * [Older Breaking Changes](breaking_changes_history.md)

 ## When is the next Breaking Change?
@ -21,14 +21,14 @@ The next Breaking Change is scheduled for November 26, 2023.

 ### Important Dates

-* 2023 Aug 27 - `develop` is tagged with a new release version. Each push to `master` is subsequently merged to `develop` by GitHub actions.
-* 2023 Oct 29 - `develop` closed to new PRs.
-* 2023 Oct 29 - Call for testers.
-* 2023 Nov 5 - Last day for merges -- after this point `develop` is locked for testing and accepts only bugfixes
-* 2023 Nov 19 - `develop` is locked, only critical bugfix PRs merged.
-* 2023 Nov 23 - `master` is locked, no PRs merged.
-* 2023 Nov 26 - Merge `develop` to `master`.
-* 2023 Nov 26 - `master` is unlocked. PRs can be merged again.
+* 2023 Nov 26 - `develop` is tagged with a new release version. Each push to `master` is subsequently merged to `develop` by GitHub actions.
+* 2024 Jan 28 - `develop` closed to new PRs.
+* 2024 Jan 28 - Call for testers.
+* 2024 Feb 4 - Last day for merges -- after this point `develop` is locked for testing and accepts only bugfixes
+* 2024 Feb 18 - `develop` is locked, only critical bugfix PRs merged.
+* 2024 Feb 22 - `master` is locked, no PRs merged.
+* 2024 Feb 25 - Merge `develop` to `master`.
+* 2024 Feb 25 - `master` is unlocked. PRs can be merged again.

 ## What changes will be included?

@ -48,7 +48,7 @@ Criteria for acceptance:

 Strongly suggested:

-* The PR has a ChangeLog file describing the changes under `<qmk_firmware>/docs/Changelog/20231126`.
+* The PR has a ChangeLog file describing the changes under `<qmk_firmware>/docs/Changelog/20240225`.
    * This should be in Markdown format, with a name in the format `PR12345.md`, substituting the digits for your PRs ID.
    * One strong recommendation that the ChangeLog document matches the PR description on GitHub, so as to ensure traceability.

--- a/docs/breaking_changes_history.md
+++ b/docs/breaking_changes_history.md
@ -2,6 +2,7 @@

 This page links to all previous changelogs from the QMK Breaking Changes process.

+* [2023 Nov 26](ChangeLog/20231126.md) - version 0.23.0
 * [2023 Aug 27](ChangeLog/20230827.md) - version 0.22.0
 * [2023 May 28](ChangeLog/20230528.md) - version 0.21.0
 * [2023 Feb 26](ChangeLog/20230226.md) - version 0.20.0
--- a/docs/cli.md
+++ b/docs/cli.md
@ -2,11 +2,11 @@

 ## Overview :id=overview

-The QMK CLI makes building and working with QMK keyboards easier. We have provided a number of commands to simplify and streamline tasks such as obtaining and compiling the QMK firmware, creating keymaps, and more.
+The QMK CLI (command line interface) makes building and working with QMK keyboards easier. We have provided a number of commands to simplify and streamline tasks such as obtaining and compiling the QMK firmware, creating keymaps, and more.

 ### Requirements :id=requirements

-QMK requires Python 3.6 or greater. We try to keep the number of requirements small but you will also need to install the packages listed in [`requirements.txt`](https://github.com/qmk/qmk_firmware/blob/master/requirements.txt). These are installed automatically when you install the QMK CLI.
+QMK requires Python 3.7 or greater. We try to keep the number of requirements small but you will also need to install the packages listed in [`requirements.txt`](https://github.com/qmk/qmk_firmware/blob/master/requirements.txt). These are installed automatically when you install the QMK CLI.

 ### Install Using Homebrew (macOS, some Linux) :id=install-using-homebrew

@ -20,7 +20,7 @@ qmk setup  # This will clone `qmk/qmk_firmware` and optionally set up your build

 ### Install Using pip :id=install-using-easy_install-or-pip

-If your system is not listed above you can install QMK manually. First ensure that you have Python 3.6 (or later) installed and have installed pip. Then install QMK with this command:
+If your system is not listed above you can install QMK manually. First ensure that you have Python 3.7 (or later) installed and have installed pip. Then install QMK with this command:

 ```
 python3 -m pip install qmk
--- a/docs/cli_commands.md
+++ b/docs/cli_commands.md
@ -362,6 +362,16 @@ This command is directory aware. It will automatically fill in KEYBOARD if you a
 qmk list-keymaps -kb planck/ez
 ```

+## `qmk migrate`
+
+This command searches for legacy code that can be converted to the new `info.json` format and adds it to the specified keyboard's `info.json`.
+
+**Usage**:
+
+```
+qmk migrate [-h] -kb KEYBOARD [-f FILTER]
+```
+
 ## `qmk new-keyboard`

 This command creates a new keyboard based on available templates.
@ -482,6 +492,131 @@ $ qmk import-kbfirmware ~/Downloads/gh62.json

 ---

+# External Userspace Commands
+
+## `qmk userspace-add`
+
+This command adds a keyboard/keymap to the External Userspace build targets.
+
+**Usage**:
+
+```
+qmk userspace-add [-h] [-km KEYMAP] [-kb KEYBOARD] [builds ...]
+
+positional arguments:
+  builds                List of builds in form <keyboard>:<keymap>, or path to a keymap JSON file.
+
+options:
+  -h, --help            show this help message and exit
+  -km KEYMAP, --keymap KEYMAP
+                        The keymap to build a firmware for. Ignored when a configurator export is supplied.
+  -kb KEYBOARD, --keyboard KEYBOARD
+                        The keyboard to build a firmware for. Ignored when a configurator export is supplied.
+```
+
+**Example**:
+
+```
+$ qmk userspace-add -kb planck/rev6 -km default
+Ψ Added planck/rev6:default to userspace build targets
+Ψ Saved userspace file to /home/you/qmk_userspace/qmk.json
+```
+
+## `qmk userspace-remove`
+
+This command removes a keyboard/keymap from the External Userspace build targets.
+
+**Usage**:
+
+```
+qmk userspace-remove [-h] [-km KEYMAP] [-kb KEYBOARD] [builds ...]
+
+positional arguments:
+  builds                List of builds in form <keyboard>:<keymap>, or path to a keymap JSON file.
+
+options:
+  -h, --help            show this help message and exit
+  -km KEYMAP, --keymap KEYMAP
+                        The keymap to build a firmware for. Ignored when a configurator export is supplied.
+  -kb KEYBOARD, --keyboard KEYBOARD
+                        The keyboard to build a firmware for. Ignored when a configurator export is supplied.
+```
+
+**Example**:
+
+```
+$ qmk userspace-remove -kb planck/rev6 -km default
+Ψ Removed planck/rev6:default from userspace build targets
+Ψ Saved userspace file to /home/you/qmk_userspace/qmk.json
+```
+
+## `qmk userspace-list`
+
+This command lists the External Userspace build targets.
+
+**Usage**:
+
+```
+qmk userspace-list [-h] [-e]
+
+options:
+  -h, --help    show this help message and exit
+  -e, --expand  Expands any use of `all` for either keyboard or keymap.
+```
+
+**Example**:
+
+```
+$ qmk userspace-list
+Ψ Current userspace build targets:
+Ψ Keyboard: planck/rev6, keymap: you
+Ψ Keyboard: clueboard/66/rev3, keymap: you
+```
+
+## `qmk userspace-compile`
+
+This command compiles all the External Userspace build targets.
+
+**Usage**:
+
+```
+qmk userspace-compile [-h] [-e ENV] [-n] [-c] [-j PARALLEL] [-t]
+
+options:
+  -h, --help            show this help message and exit
+  -e ENV, --env ENV     Set a variable to be passed to make. May be passed multiple times.
+  -n, --dry-run         Don't actually build, just show the commands to be run.
+  -c, --clean           Remove object files before compiling.
+  -j PARALLEL, --parallel PARALLEL
+                        Set the number of parallel make jobs; 0 means unlimited.
+  -t, --no-temp         Remove temporary files during build.
+```
+
+**Example**:
+
+```
+$ qmk userspace-compile
+Ψ Preparing target list...
+Build planck/rev6:you                                                  [OK]
+Build clueboard/66/rev3:you                                            [OK]
+```
+
+## `qmk userspace-doctor`
+
+This command examines your environment and alerts you to potential problems related to External Userspace.
+
+**Example**:
+
+```
+% qmk userspace-doctor
+Ψ QMK home: /home/you/qmk_userspace/qmk_firmware
+Ψ Testing userspace candidate: /home/you/qmk_userspace -- Valid `qmk.json`
+Ψ QMK userspace: /home/you/qmk_userspace
+Ψ Userspace enabled: True
+```
+
+---
+
 # Developer Commands

 ## `qmk format-text`
--- a/docs/cli_development.md
+++ b/docs/cli_development.md
@ -44,7 +44,7 @@ def hello(cli):

 First we import the `cli` object from `milc`. This is how we interact with the user and control the script's behavior. We use `@cli.argument()` to define a command line flag, `--name`. This also creates a configuration variable named `hello.name` (and the corresponding `user.name`) which the user can set so they don't have to specify the argument. The `cli.subcommand()` decorator designates this function as a subcommand. The name of the subcommand will be taken from the name of the function.

-Once inside our function we find a typical "Hello, World!" program. We use `cli.log` to access the underlying [Logger Object](https://docs.python.org/3.6/library/logging.html#logger-objects), whose behavior is user controllable. We also access the value for name supplied by the user as `cli.config.hello.name`. The value for `cli.config.hello.name` will be determined by looking at the `--name` argument supplied by the user, if not provided it will use the value in the `qmk.ini` config file, and if neither of those is provided it will fall back to the default supplied in the `cli.argument()` decorator.
+Once inside our function we find a typical "Hello, World!" program. We use `cli.log` to access the underlying [Logger Object](https://docs.python.org/3.7/library/logging.html#logger-objects), whose behavior is user controllable. We also access the value for name supplied by the user as `cli.config.hello.name`. The value for `cli.config.hello.name` will be determined by looking at the `--name` argument supplied by the user, if not provided it will use the value in the `qmk.ini` config file, and if neither of those is provided it will fall back to the default supplied in the `cli.argument()` decorator.

 # User Interaction

@ -56,13 +56,13 @@ There are two main methods for outputting text in a subcommand- `cli.log` and `c

 You can use special tokens to colorize your text, to make it easier to understand the output of your program. See [Colorizing Text](#colorizing-text) below.

-Both of these methods support built-in string formatting using python's [printf style string format operations](https://docs.python.org/3.6/library/stdtypes.html#old-string-formatting). You can use tokens such as `%s` and `%d` within your text strings then pass the values as arguments. See our Hello, World program above for an example.
+Both of these methods support built-in string formatting using python's [printf style string format operations](https://docs.python.org/3.7/library/stdtypes.html#old-string-formatting). You can use tokens such as `%s` and `%d` within your text strings then pass the values as arguments. See our Hello, World program above for an example.

 You should never use the format operator (`%`) directly, always pass values as arguments.

 ### Logging (`cli.log`)

-The `cli.log` object gives you access to a [Logger Object](https://docs.python.org/3.6/library/logging.html#logger-objects). We have configured our log output to show the user a nice emoji for each log level (or the log level name if their terminal does not support unicode.) This way the user can tell at a glance which messages are most important when something goes wrong.
+The `cli.log` object gives you access to a [Logger Object](https://docs.python.org/3.7/library/logging.html#logger-objects). We have configured our log output to show the user a nice emoji for each log level (or the log level name if their terminal does not support unicode.) This way the user can tell at a glance which messages are most important when something goes wrong.

 The default log level is `INFO`. If the user runs `qmk -v <subcommand>` the default log level will be set to `DEBUG`.

--- a/docs/coding_conventions_python.md
+++ b/docs/coding_conventions_python.md
@ -317,7 +317,7 @@ At the time of this writing our tests are not very comprehensive. Looking at the

 ## Integration Tests

-Integration tests can be found in `lib/python/qmk/tests/test_cli_commands.py`. This is where CLI commands are actually run and their overall behavior is verified. We use [`subprocess`](https://docs.python.org/3.6/library/subprocess.html#module-subprocess) to launch each CLI command and a combination of checking output and returncode to determine if the right thing happened.
+Integration tests can be found in `lib/python/qmk/tests/test_cli_commands.py`. This is where CLI commands are actually run and their overall behavior is verified. We use [`subprocess`](https://docs.python.org/3.7/library/subprocess.html#module-subprocess) to launch each CLI command and a combination of checking output and returncode to determine if the right thing happened.

 ## Unit Tests

--- a/docs/contributing.md
+++ b/docs/contributing.md
@ -70,6 +70,7 @@ We have a few different types of changes in QMK, each requiring a different leve
  * Keymaps: Make sure that `make keyboard:keymap` does not return any errors.
  * Keyboards: Make sure that `make keyboard:all` does not return any errors.
  * Core: Make sure that `make all` does not return any errors.
+* Note that user-keymap and userspace contributions are no longer accepted.
 * Make sure commit messages are understandable on their own. You should put a short description (no more than 70 characters) on the first line, the second line should be empty, and on the 3rd and later lines you should describe your commit in detail, if required. Example:

 ```
@ -80,8 +81,6 @@ The kerpleplork was intermittently failing with error code 23. The root cause wa
 Limited experimentation on the devices I have available shows that 7 is high enough to avoid confusing the kerpleplork, but I'd like to get some feedback from people with ARM devices to be sure.
 ```

-!> **IMPORTANT:** If you would like to contribute a bugfix or improvement to user code, such as non-default keymaps, userspace and layouts, be sure to tag the original submitter of the code in your PR. Many users, regardless of skill level with Git and GitHub, may be confused or frustrated at their code being modified without their knowledge.
-
 ## Documentation

 Documentation is one of the easiest ways to get started contributing to QMK. Finding places where the documentation is wrong or incomplete and fixing those is easy! We also very badly need someone to edit our documentation, so if you have editing skills but aren't sure where or how to jump in please [reach out for help](#where-can-i-go-for-help)!
--- a/docs/custom_quantum_functions.md
+++ b/docs/custom_quantum_functions.md
@ -283,6 +283,65 @@ void suspend_wakeup_init_user(void) {
 * Keyboard/Revision: `void suspend_power_down_kb(void)` and `void suspend_wakeup_init_user(void)`
 * Keymap: `void suspend_power_down_kb(void)` and `void suspend_wakeup_init_user(void)`

+
+# Keyboard Shutdown/Reboot Code :id=keyboard-shutdown-reboot-code
+
+This function gets called whenever the firmware is reset, whether it's a soft reset or reset to the bootloader.  This is the spot to use for any sort of cleanup, as this happens right before the actual reset.  And it can be useful for turning off different systems (such as RGB, onboard screens, etc).
+
+Additionally, it differentiates between the soft reset (eg, rebooting back into the firmware) or jumping to the bootloader.
+
+Certain tasks are performed during shutdown too.  The keyboard is cleared, music and midi is stopped (if enabled), the shutdown chime is triggered (if audio is enabled), and haptic is stopped.
+
+If `jump_to_bootloader` is set to `true`, this indicates that the board will be entering the bootloader for a new firmware flash, whereas `false` indicates that this is happening for a soft reset and will load the firmware agaim immediately (such as when using `QK_REBOOT` or `QK_CLEAR_EEPROM`).
+
+As there is a keyboard and user level function, returning `false` for the user function will disable the keyboard level function, allowing for customization.
+
+?> Bootmagic does not trigger `shutdown_*()` as it happens before most of the initialization process.
+
+### Example `shutdown_kb()` Implementation
+
+```c
+bool shutdown_kb(bool jump_to_bootloader) {
+    if (!shutdown_user(jump_to_bootloader)) {
+        return false;
+    }
+    
+    if (jump_to_bootloader) {
+        // red for bootloader
+        rgb_matrix_set_color_all(RGB_OFF);
+    } else {
+        // off for soft reset
+        rgb_matrix_set_color_all(RGB_GREEN);
+    }
+    // force flushing -- otherwise will never happen
+    rgb_matrix_update_pwm_buffers();
+    return true;
+}
+```
+
+### Example `shutdown_user()` Implementation
+
+```c
+bool shutdown_user(bool jump_to_bootloader) {
+    if (jump_to_bootloader) {
+        // red for bootloader
+        rgb_matrix_set_color_all(RGB_RED);
+    } else {
+        // off for soft reset
+        rgb_matrix_set_color_all(RGB_OFF);
+    }
+    // force flushing -- otherwise will never happen
+    rgb_matrix_update_pwm_buffers();
+    // false to not process kb level
+    return false;
+}
+```
+
+### Keyboard shutdown/reboot Function Documentation
+
+* Keyboard/Revision: `bool shutdown_kb(bool jump_to_bootloader)`
+* Keymap: `bool shutdown_user(bool jump_to_bootloader)`
+
 # Deferred Execution :id=deferred-execution

 QMK has the ability to execute a callback after a specified period of time, rather than having to manually manage timers. To enable this functionality, set `DEFERRED_EXEC_ENABLE = yes` in rules.mk.
--- a/docs/eeprom_driver.md
+++ b/docs/eeprom_driver.md
@ -66,6 +66,14 @@ Currently QMK supports 25xx-series chips over SPI. As such, requires a working s
 `#define EXTERNAL_EEPROM_PAGE_SIZE`            | `32`          | Page size of the EEPROM in bytes, as specified in the datasheet
 `#define EXTERNAL_EEPROM_ADDRESS_SIZE`         | `2`           | The number of bytes to transmit for the memory location within the EEPROM

+Default values and extended descriptions can be found in `drivers/eeprom/eeprom_spi.h`.
+
+Alternatively, there are pre-defined hardware configurations for available chips/modules:
+
+Module           | Equivalent `#define`            | Source
+-----------------|---------------------------------|------------------------------------------
+MB85RS64V FRAM   | `define EEPROM_SPI_MB85RS64V`   | <https://www.adafruit.com/product/1897>
+
 !> There's no way to determine if there is an SPI EEPROM actually responding. Generally, this will result in reads of nothing but zero.

 ## Transient Driver configuration :id=transient-eeprom-driver-configuration
@ -105,11 +113,11 @@ Configurable options in your keyboard's `config.h`:

 `config.h` override                      | Default     | Description
 -----------------------------------------|-------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-`#define WEAR_LEVELING_EFL_FIRST_SECTOR` | _unset_     | The first sector on the MCU to use. By default this is not defined and calculated at runtime based on the MCU. However, different flash sizes on MCUs may require custom configuration.
-`#define WEAR_LEVELING_EFL_FLASH_SIZE`   | _unset_     | Allows overriding the flash size available for use for wear-leveling. Under normal circumstances this is automatically calculated and should not need to be overridden. Specifying a size larger than the amount actually available in flash will usually prevent the MCU from booting.
-`#define WEAR_LEVELING_LOGICAL_SIZE`     | `1024`      | Number of bytes "exposed" to the rest of QMK and denotes the size of the usable EEPROM.
-`#define WEAR_LEVELING_BACKING_SIZE`     | `2048`      | Number of bytes used by the wear-leveling algorithm for its underlying storage, and needs to be a multiple of the logical size.
-`#define BACKING_STORE_WRITE_SIZE`       | _automatic_ | The byte width of the underlying write used on the MCU, and is usually automatically determined from the selected MCU family. If an error occurs in the auto-detection, you'll need to consult the MCU's datasheet and determine this value, specifying it directly.
+`#define WEAR_LEVELING_EFL_FIRST_SECTOR` | _unset_            | The first sector on the MCU to use. By default this is not defined and calculated at runtime based on the MCU. However, different flash sizes on MCUs may require custom configuration.
+`#define WEAR_LEVELING_EFL_FLASH_SIZE`   | _unset_            | Allows overriding the flash size available for use for wear-leveling. Under normal circumstances this is automatically calculated and should not need to be overridden. Specifying a size larger than the amount actually available in flash will usually prevent the MCU from booting.
+`#define WEAR_LEVELING_LOGICAL_SIZE`     | `(backing_size/2)` | Number of bytes "exposed" to the rest of QMK and denotes the size of the usable EEPROM.
+`#define WEAR_LEVELING_BACKING_SIZE`     | `2048`             | Number of bytes used by the wear-leveling algorithm for its underlying storage, and needs to be a multiple of the logical size.
+`#define BACKING_STORE_WRITE_SIZE`       | _automatic_        | The byte width of the underlying write used on the MCU, and is usually automatically determined from the selected MCU family. If an error occurs in the auto-detection, you'll need to consult the MCU's datasheet and determine this value, specifying it directly.

 !> If your MCU does not boot after swapping to the EFL wear-leveling driver, it's likely that the flash size is incorrectly detected, usually as an MCU with larger flash and may require overriding.

@ -139,7 +147,7 @@ Configurable options in your keyboard's `config.h`:
 ------------------------------------------|----------------------------|--------------------------------------------------------------------------------------------------------------------------------
 `#define WEAR_LEVELING_RP2040_FLASH_SIZE` | `PICO_FLASH_SIZE_BYTES`    | Number of bytes of flash on the board.
 `#define WEAR_LEVELING_RP2040_FLASH_BASE` | `(flash_size-sector_size)` | The byte-wise location that the backing storage should be located.
-`#define WEAR_LEVELING_LOGICAL_SIZE`      | `4096`                     | Number of bytes "exposed" to the rest of QMK and denotes the size of the usable EEPROM.
+`#define WEAR_LEVELING_LOGICAL_SIZE`      | `(backing_size/2)`         | Number of bytes "exposed" to the rest of QMK and denotes the size of the usable EEPROM.
 `#define WEAR_LEVELING_BACKING_SIZE`      | `8192`                     | Number of bytes used by the wear-leveling algorithm for its underlying storage, and needs to be a multiple of the logical size as well as the sector size.
 `#define BACKING_STORE_WRITE_SIZE`        | `2`                        | The write width used whenever a write is performed on the external flash peripheral.

--- a/docs/feature_auto_shift.md
+++ b/docs/feature_auto_shift.md
@ -180,18 +180,18 @@ For more granular control, there is `get_auto_shifted_key`. The default function
 bool get_auto_shifted_key(uint16_t keycode, keyrecord_t *record) {
    switch (keycode) {
 #    ifndef NO_AUTO_SHIFT_ALPHA
-        case KC_A ... KC_Z:
+        case AUTO_SHIFT_ALPHA:
 #    endif
 #    ifndef NO_AUTO_SHIFT_NUMERIC
-        case KC_1 ... KC_0:
+        case AUTO_SHIFT_NUMERIC:
 #    endif
 #    ifndef NO_AUTO_SHIFT_SPECIAL
-#    ifndef NO_AUTO_SHIFT_TAB
+#        ifndef NO_AUTO_SHIFT_TAB
        case KC_TAB:
-#    endif
-#    ifndef NO_AUTO_SHIFT_SYMBOLS
+#        endif
+#        ifndef NO_AUTO_SHIFT_SYMBOLS
        case AUTO_SHIFT_SYMBOLS:
-#    endif
+#        endif
 #    endif
 #    ifdef AUTO_SHIFT_ENTER
        case KC_ENT:
@ -310,10 +310,16 @@ generating taps on release. For example:
 #define RETRO_SHIFT 500
 ```

+Without a value set, holds of any length without an interrupting key will produce the shifted value.
+
 This value (if set) must be greater than one's `TAPPING_TERM`, as the key press
 must be designated as a 'hold' by `process_tapping` before we send the modifier.
+[Per-key tapping terms](tap_hold.md#tapping-term) can be used as a workaround.
 There is no such limitation in regards to `AUTO_SHIFT_TIMEOUT` for normal keys.

+**Note:** Tap Holds must be added to Auto Shift, see [here.](feature_auto_shift.md#auto-shift-per-key)
+`IS_RETRO` may be helpful if one wants all Tap Holds retro shifted.
+
 ### Retro Shift and Tap Hold Configurations

 Tap Hold Configurations work a little differently when using Retro Shift.
--- a/docs/feature_backlight.md
+++ b/docs/feature_backlight.md
@ -37,8 +37,9 @@ Add the following to your `config.h`:
 |`BREATHING_PERIOD`           |`6`               |The length of one backlight "breath" in seconds                                                                  |
 |`BACKLIGHT_ON_STATE`         |`1`               |The state of the backlight pin when the backlight is "on" - `1` for high, `0` for low                            |
 |`BACKLIGHT_LIMIT_VAL`        |`255`             |The maximum duty cycle of the backlight -- `255` allows for full brightness, any lower will decrease the maximum.|
+|`BACKLIGHT_DEFAULT_ON`       |`true`            |Enable backlight upon clearing the EEPROM                                                                        |
+|`BACKLIGHT_DEFAULT_BREATHING`|`false`           |Whether to enable backlight breathing upon clearing the EEPROM                                                   |
 |`BACKLIGHT_DEFAULT_LEVEL`    |`BACKLIGHT_LEVELS`|The default backlight level to use upon clearing the EEPROM                                                      |
-|`BACKLIGHT_DEFAULT_BREATHING`|*Not defined*     |Whether to enable backlight breathing upon clearing the EEPROM                                                   |

 Unless you are designing your own keyboard, you generally should not need to change the `BACKLIGHT_PIN` or `BACKLIGHT_ON_STATE`.

@ -172,11 +173,13 @@ Depending on the ChibiOS board configuration, you may need to enable PWM at the

 The following `#define`s apply only to the `pwm` driver:

-|Define                 |Default |Description                        |
-|-----------------------|--------|-----------------------------------|
-|`BACKLIGHT_PWM_DRIVER` |`PWMD4` |The PWM driver to use              |
-|`BACKLIGHT_PWM_CHANNEL`|`3`     |The PWM channel to use             |
-|`BACKLIGHT_PAL_MODE`   |`2`     |The pin alternative function to use|
+|Define                 |Default      |Description                                                    |
+|-----------------------|-------------|---------------------------------------------------------------|
+|`BACKLIGHT_PWM_DRIVER` |`PWMD4`      |The PWM driver to use                                          |
+|`BACKLIGHT_PWM_CHANNEL`|`3`          |The PWM channel to use                                         |
+|`BACKLIGHT_PAL_MODE`   |`2`          |The pin alternative function to use                            |
+|`BACKLIGHT_PWM_PERIOD` |*Not defined*|The PWM period in counter ticks - Default is platform dependent|
+

 Refer to the ST datasheet for your particular MCU to determine these values. For example, these defaults are set up for pin `B8` on a Proton-C (STM32F303) using `TIM4_CH3` on AF2. Unless you are designing your own keyboard, you generally should not need to change them.

--- a/docs/feature_combo.md
+++ b/docs/feature_combo.md
@ -345,10 +345,9 @@ is not set, all other layers will reference themselves.
        }
        return layer;  // important if default is not in case.
    }
-
    ```
-    
-    The equivalent definition using the combo macros is this: 
+
+The equivalent definition using the combo macros is this:

    ```c
    COMBO_REF_LAYER(_DVORAK, _QWERTY)
--- a/docs/feature_converters.md
+++ b/docs/feature_converters.md
@ -1,12 +1,10 @@
 # Converters

-Since many drop-in replacement controllers now exist, we've done our best to make them easy to use in existing designs.
+This page documents the automated process for converting keyboards to use drop-in replacement controllers. This process is designed to be easy to use and can be completed in a few simple steps.

-This page documents the handy automated process for converting keyboards.
+## Supported Converters

-### Supported Converters
-
-Currently the following converters are available:
+The following converters are available at this time:

 | From       | To                |
 |------------|-------------------|
@ -28,14 +26,10 @@ Currently the following converters are available:
 | `elite_c`  | `helios`          |
 | `elite_c`  | `liatris`         |

-See below for more in depth information on each converter.

 ## Overview

-Each converter category is broken down by its declared `pin compatibility`.
-This ensures that only valid combinations are attempted.
-
-You can generate the firmware by appending `-e CONVERT_TO=<target>` to your compile/flash command. For example:
+Each converter category is broken down by its declared `pin compatibility`. This ensures that only valid combinations are attempted. You can generate the firmware by appending `-e CONVERT_TO=<target>` to your compile/flash command. For example:

 ```sh
 qmk flash -c -kb keebio/bdn9/rev1 -km default -e CONVERT_TO=proton_c
@ -59,14 +53,12 @@ Once a converter is enabled, it exposes the `CONVERT_TO_<target_uppercase>` flag

 ### Pin Compatibility

-To ensure compatibility, provide validation, and power future workflows, a keyboard should declare its `pin compatibility`. For legacy reasons, this is currently assumed to be `promicro`.
+To ensure compatibility, provide validation, and enable future workflows, a keyboard should declare its `pin compatibility`. For legacy reasons, this is currently assumed to be `promicro`. The following pin compatibility interfaces are currently defined:

-Currently the following pin compatibility interfaces are defined:
-
-| Pinout     | Notes                             |
-|------------|-----------------------------------|
-| `promicro` | Includes RX/TX LEDs               |
-| `elite_c`  | Includes bottom row pins, no LEDs |
+| Pin Compatibility | Notes                             |
+|-------------------|-----------------------------------|
+| `promicro`        | Includes RX/TX LEDs               |
+| `elite_c`         | Includes bottom row pins, no LEDs |

 To declare the base for conversions, add this line to your keyboard's `rules.mk`:

@ -140,7 +132,7 @@ The following defaults are based on what has been implemented for [RP2040](platf

 ### SparkFun Pro Micro - RP2040, Blok, Bit-C PRO and Michi :id=promicro_rp2040 

-Currently identical to [Adafruit KB2040](#kb2040).
+Feature set is identical to [Adafruit KB2040](#kb2040).

 ### STeMCell :id=stemcell

@ -150,9 +142,7 @@ There are two versions of STeMCell available, with different pinouts:
  - v2.0.0 (pre-release v1.0.1, v1.0.2)
 Default official firmware only supports v2.0.0 STeMCell.

-STeMCell has support to swap UART and I2C pins, to enable single-wire uart communication in STM chips.
-
-The following additional flags has to be used while compiling, based on the pin used for split communication.
+STeMCell has support to swap UART and I2C pins to enable single-wire uart communication in STM chips. The following additional flags has to be used while compiling, based on the pin used for split communication:

 | Split Pin | Compile flags |
 |-----------|---------------|
@ -173,11 +163,8 @@ The Bonsai C4 only has one on-board LED (B2), and by default, both the Pro Micro

 ### RP2040 Community Edition - Elite-Pi, Helios, and Liatris :id=rp2040_ce

-Feature set currently identical to [Adafruit KB2040](#kb2040).
+Feature set is identical to [Adafruit KB2040](#kb2040). VBUS detection is enabled by default for superior split keyboard support. For more information, refer to the [Community Edition pinout](platformdev_rp2040.md#rp2040_ce) docs.

-Enables VBUS detection by default for superior split keyboard support.
-
-For more information, refer to the [RP2040 Community Edition](platformdev_rp2040.md#rp2040_ce) docs.

 ## Elite-C

@ -202,8 +189,8 @@ Converter summary:

 ### STeMCell :id=stemcell_elite

-Currently identical to [STeMCell](#stemcell) with support for the additional bottom row of pins.
+Identical to [Pro Micro - STeMCell](#stemcell) with support for the additional bottom row of pins.

 ### RP2040 Community Edition :id=rp2040_ce_elite

-Currently identical to [RP2040 Community Edition](#rp2040_ce), with support for the additional bottom row of pins.
+Identical to [Pro Micro - RP2040 Community Edition](#rp2040_ce) with support for the additional bottom row of pins.
--- a/docs/feature_key_overrides.md
+++ b/docs/feature_key_overrides.md
@ -21,7 +21,7 @@ Then, in your `keymap.c` file, you'll need to define the array `key_overrides`,
 The `key_override_t` struct has many options that allow you to precisely tune your overrides. The full reference is shown below. Instead of manually creating a `key_override_t` value, it is recommended to use these dedicated initializers:

 #### `ko_make_basic(modifiers, key, replacement)`
-Returns a `key_override_t`, which sends `replacement` (can be a key-modifer combination), when `key` and `modifiers` are all pressed down. This override still activates if any additional modifiers not specified in `modifiers` are also pressed down. See `ko_make_with_layers_and_negmods` to customize this behavior.
+Returns a `key_override_t`, which sends `replacement` (can be a key-modifier combination), when `key` and `modifiers` are all pressed down. This override still activates if any additional modifiers not specified in `modifiers` are also pressed down. See `ko_make_with_layers_and_negmods` to customize this behavior.

 #### `ko_make_with_layers(modifiers, key, replacement, layers)`
 Additionally takes a bitmask `layers` that defines on which layers the override is used.
@ -224,7 +224,7 @@ The duration of the key repeat delay is controlled with the `KEY_OVERRIDE_REPEAT

 ## Difference to Combos :id=difference-to-combos

-Note that key overrides are very different from [combos](https://docs.qmk.fm/#/feature_combo). Combos require that you press down several keys almost _at the same time_ and can work with any combination of non-modifier keys. Key overrides work like keyboard shortcuts (e.g. `ctrl` + `z`): They take combinations of _multiple_ modifiers and _one_ non-modifier key to then perform some custom action. Key overrides are implemented with much care to behave just like normal keyboard shortcuts would in regards to the order of pressed keys, timing, and interacton with other pressed keys. There are a number of optional settings that can be used to really fine-tune the behavior of each key override as well. Using key overrides also does not delay key input for regular key presses, which inherently happens in combos and may be undesirable.
+Note that key overrides are very different from [combos](https://docs.qmk.fm/#/feature_combo). Combos require that you press down several keys almost _at the same time_ and can work with any combination of non-modifier keys. Key overrides work like keyboard shortcuts (e.g. `ctrl` + `z`): They take combinations of _multiple_ modifiers and _one_ non-modifier key to then perform some custom action. Key overrides are implemented with much care to behave just like normal keyboard shortcuts would in regards to the order of pressed keys, timing, and interaction with other pressed keys. There are a number of optional settings that can be used to really fine-tune the behavior of each key override as well. Using key overrides also does not delay key input for regular key presses, which inherently happens in combos and may be undesirable.

 ## Solution to the problem of flashing modifiers :id=neutralize-flashing-modifiers

--- a/docs/feature_led_matrix.md
+++ b/docs/feature_led_matrix.md
@ -19,14 +19,13 @@ You can use between 1 and 4 IS31FL3731 IC's. Do not specify `LED_DRIVER_ADDR_<N>

 | Variable | Description | Default |
 |----------|-------------|---------|
-| `ISSI_TIMEOUT` | (Optional) How long to wait for i2c messages, in milliseconds | 100 |
-| `ISSI_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 |
-| `LED_DRIVER_COUNT` | (Required) How many LED driver IC's are present | |
+| `IS31FL3731_I2C_TIMEOUT` | (Optional) How long to wait for i2c messages, in milliseconds | 100 |
+| `IS31FL3731_I2C_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 |
 | `LED_MATRIX_LED_COUNT` | (Required) How many LED lights are present across all drivers | |
-| `LED_DRIVER_ADDR_1` | (Required) Address for the first LED driver | |
-| `LED_DRIVER_ADDR_2` | (Optional) Address for the second LED driver | |
-| `LED_DRIVER_ADDR_3` | (Optional) Address for the third LED driver | |
-| `LED_DRIVER_ADDR_4` | (Optional) Address for the fourth LED driver | |
+| `IS31FL3731_I2C_ADDRESS_1` | (Required) Address for the first LED driver | |
+| `IS31FL3731_I2C_ADDRESS_2` | (Optional) Address for the second LED driver | |
+| `IS31FL3731_I2C_ADDRESS_3` | (Optional) Address for the third LED driver | |
+| `IS31FL3731_I2C_ADDRESS_4` | (Optional) Address for the fourth LED driver | |

 Here is an example using 2 drivers.

@ -34,14 +33,15 @@ Here is an example using 2 drivers.
 // This is a 7-bit address, that gets left-shifted and bit 0
 // set to 0 for write, 1 for read (as per I2C protocol)
 // The address will vary depending on your wiring:
-// 0b1110100 AD <-> GND
-// 0b1110111 AD <-> VCC
-// 0b1110101 AD <-> SCL
-// 0b1110110 AD <-> SDA
-#define LED_DRIVER_ADDR_1 0b1110100
-#define LED_DRIVER_ADDR_2 0b1110110
+// 00 AD <-> GND
+// 01 AD <-> SCL
+// 10 AD <-> SDA
+// 11 AD <-> VCC
+// ADDR represents A1:A0 of the 7-bit address.
+// The result is: 0b11101(ADDR)
+#define IS31FL3731_I2C_ADDRESS_1 IS31FL3731_I2C_ADDRESS_GND
+#define IS31FL3731_I2C_ADDRESS_2 IS31FL3731_I2C_ADDRESS_SDA

-#define LED_DRIVER_COUNT 2
 #define LED_DRIVER_1_LED_TOTAL 25
 #define LED_DRIVER_2_LED_TOTAL 24
 #define LED_MATRIX_LED_COUNT (LED_DRIVER_1_LED_TOTAL + LED_DRIVER_2_LED_TOTAL)
@ -49,12 +49,12 @@ Here is an example using 2 drivers.

 !> Note the parentheses, this is so when `LED_MATRIX_LED_COUNT` is used in code and expanded, the values are added together before any additional math is applied to them. As an example, `rand() % (LED_DRIVER_1_LED_TOTAL + LED_DRIVER_2_LED_TOTAL)` will give very different results than `rand() % LED_DRIVER_1_LED_TOTAL + LED_DRIVER_2_LED_TOTAL`.

-For split keyboards using `LED_MATRIX_SPLIT` with an LED driver, you can either have the same driver address or different driver addresses. If using different addresses, use `DRIVER_ADDR_1` for one and `DRIVER_ADDR_2` for the other one. Then, in `g_is31_leds`, fill out the correct driver index (0 or 1). If using one address, use `DRIVER_ADDR_1` for both, and use index 0 for `g_is31_leds`.
+For split keyboards using `LED_MATRIX_SPLIT` with an LED driver, you can either have the same driver address or different driver addresses. If using different addresses, use `IS31FL3731_I2C_ADDRESS_1` for one and `IS31FL3731_I2C_ADDRESS_2` for the other one. Then, in `g_is31fl3731_leds`, fill out the correct driver index (0 or 1). If using one address, use `IS31FL3731_I2C_ADDRESS_1` for both, and use index 0 for `g_is31fl3731_leds`.

 Define these arrays listing all the LEDs in your `<keyboard>.c`:

 ```c
-const is31_led PROGMEM g_is31_leds[LED_MATRIX_LED_COUNT] = {
+const is31fl3731_led_t PROGMEM g_is31fl3731_leds[LED_MATRIX_LED_COUNT] = {
 /* Refer to IS31 manual for these locations
 *    driver
 *    |  LED address
@ -94,7 +94,6 @@ Configure the hardware via your `config.h`:
 |----------|-------------|---------|
 | `ISSI_TIMEOUT` | (Optional) How long to wait for i2c messages, in milliseconds | 100 |
 | `ISSI_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 |
-| `DRIVER_COUNT` | (Required) How many LED driver IC's are present | |
 | `LED_MATRIX_LED_COUNT` | (Required) How many LED lights are present across all drivers | |
 | `DRIVER_ADDR_1` | (Optional) Address for the first LED driver | |
 | `DRIVER_ADDR_<N>` | (Required) Address for the additional LED drivers | |
@ -127,7 +126,6 @@ Here is an example using 2 drivers.
 ```c
 #define DRIVER_ADDR_2 0b0100001

-#define DRIVER_COUNT 2
 #define DRIVER_1_LED_TOTAL 66
 #define DRIVER_2_LED_TOTAL 42
 #define LED_MATRIX_LED_COUNT (DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL)
@ -159,7 +157,7 @@ Then Define the array listing all the LEDs you want to override in your `<keyboa

 ```c
 const is31_led PROGMEM g_is31_scaling[ISSI_MANUAL_SCALING] = {
- *   LED Index
+/*   LED Index
 *   |  Scaling
 *   |  | */
    {5, 120},
@ -248,16 +246,16 @@ enum led_matrix_effects {
    LED_MATRIX_CYCLE_OUT_IN,        // Full gradient scrolling out to in
    LED_MATRIX_DUAL_BEACON,         // Full gradient spinning around center of keyboard
    LED_MATRIX_SOLID_REACTIVE_SIMPLE,   // Pulses keys hit then fades out
-    LED_MATRIX_SOLID_REACTIVE_WIDE       // Value pulses near a single key hit then fades out
-    LED_MATRIX_SOLID_REACTIVE_MULTIWIDE  // Value pulses near multiple key hits then fades out
-    LED_MATRIX_SOLID_REACTIVE_CROSS      // Value pulses the same column and row of a single key hit then fades out
-    LED_MATRIX_SOLID_REACTIVE_MULTICROSS // Value pulses the same column and row of multiple key hits then fades out
-    LED_MATRIX_SOLID_REACTIVE_NEXUS      // Value pulses away on the same column and row of a single key hit then fades out
-    LED_MATRIX_SOLID_REACTIVE_MULTINEXUS // Value pulses away on the same column and row of multiple key hits then fades out
+    LED_MATRIX_SOLID_REACTIVE_WIDE,       // Value pulses near a single key hit then fades out
+    LED_MATRIX_SOLID_REACTIVE_MULTIWIDE,  // Value pulses near multiple key hits then fades out
+    LED_MATRIX_SOLID_REACTIVE_CROSS,      // Value pulses the same column and row of a single key hit then fades out
+    LED_MATRIX_SOLID_REACTIVE_MULTICROSS, // Value pulses the same column and row of multiple key hits then fades out
+    LED_MATRIX_SOLID_REACTIVE_NEXUS,      // Value pulses away on the same column and row of a single key hit then fades out
+    LED_MATRIX_SOLID_REACTIVE_MULTINEXUS, // Value pulses away on the same column and row of multiple key hits then fades out
    LED_MATRIX_SOLID_SPLASH,             // Value pulses away from a single key hit then fades out
    LED_MATRIX_SOLID_MULTISPLASH,        // Value pulses away from multiple key hits then fades out
-    LED_MATRIX_WAVE_LEFT_RIGHT           // Sine wave scrolling from left to right
-    LED_MATRIX_WAVE_UP_DOWN              // Sine wave scrolling from up to down
+    LED_MATRIX_WAVE_LEFT_RIGHT,           // Sine wave scrolling from left to right
+    LED_MATRIX_WAVE_UP_DOWN,              // Sine wave scrolling from up to down
    LED_MATRIX_EFFECT_MAX
 };
 ```
@ -363,6 +361,7 @@ For inspiration and examples, check out the built-in effects under `quantum/led_
 #define LED_MATRIX_LED_PROCESS_LIMIT (LED_MATRIX_LED_COUNT + 4) / 5 // limits the number of LEDs to process in an animation per task run (increases keyboard responsiveness)
 #define LED_MATRIX_LED_FLUSH_LIMIT 16 // limits in milliseconds how frequently an animation will update the LEDs. 16 (16ms) is equivalent to limiting to 60fps (increases keyboard responsiveness)
 #define LED_MATRIX_MAXIMUM_BRIGHTNESS 255 // limits maximum brightness of LEDs
+#define LED_MATRIX_DEFAULT_ON true // Sets the default enabled state, if none has been set
 #define LED_MATRIX_DEFAULT_MODE LED_MATRIX_SOLID // Sets the default mode, if none has been set
 #define LED_MATRIX_DEFAULT_VAL LED_MATRIX_MAXIMUM_BRIGHTNESS // Sets the default brightness value, if none has been set
 #define LED_MATRIX_DEFAULT_SPD 127 // Sets the default animation speed, if none has been set
--- a/docs/feature_oled_driver.md
+++ b/docs/feature_oled_driver.md
@ -167,6 +167,28 @@ bool oled_task_user(void) {
 #endif
 ```

+Render a message before booting into bootloader mode.
+```c
+void oled_render_boot(bool bootloader) {
+    oled_clear();
+    for (int i = 0; i < 16; i++) {
+        oled_set_cursor(0, i);
+        if (bootloader) {
+            oled_write_P(PSTR("Awaiting New Firmware "), false);
+        } else {
+            oled_write_P(PSTR("Rebooting "), false);
+        }
+    }
+
+    oled_render_dirty(true);
+}
+
+bool shutdown_user(bool jump_to_bootloader) {
+    oled_render_boot(jump_to_bootloader);
+}
+
+```
+
 ## Basic Configuration

 These configuration options should be placed in `config.h`. Example:
@ -191,7 +213,7 @@ These configuration options should be placed in `config.h`. Example:
 |`OLED_SCROLL_TIMEOUT_RIGHT`|*Not defined*                  |Scroll timeout direction is right when defined, left when undefined.                                                 |
 |`OLED_TIMEOUT`             |`60000`                        |Turns off the OLED screen after 60000ms of screen update inactivity. Helps reduce OLED Burn-in. Set to 0 to disable. |
 |`OLED_UPDATE_INTERVAL`     |`0` (`50` for split keyboards) |Set the time interval for updating the OLED display in ms. This will improve the matrix scan rate.                   |
-|`OLED_UPDATE_PROCESS_LIMIT'|`1`                            |Set the number of dirty blocks to render per loop. Increasing may degrade performance.                               |
+|`OLED_UPDATE_PROCESS_LIMIT`|`1`                            |Set the number of dirty blocks to render per loop. Increasing may degrade performance.                               |

 ### I2C Configuration
 |Define                     |Default          |Description                                                                                                               |
@ -276,7 +298,7 @@ Rotation on SH1106 and SH1107 is noticeably less efficient than on SSD1306, beca
 ## OLED API

 ```c
-// OLED rotation enum values are flags
+// OLED Rotation enum values are flags
 typedef enum {
    OLED_ROTATION_0   = 0,
    OLED_ROTATION_90  = 1,
@ -284,7 +306,7 @@ typedef enum {
    OLED_ROTATION_270 = 3, // OLED_ROTATION_90 | OLED_ROTATION_180
 } oled_rotation_t;

-// Initialize the OLED display, rotating the rendered output based on the define passed in.
+// Initialize the oled display, rotating the rendered output based on the define passed in.
 // Returns true if the OLED was initialized successfully
 bool oled_init(oled_rotation_t rotation);

@ -302,8 +324,12 @@ bool oled_send_data(const uint8_t *data, uint16_t size);
 // Clears the display buffer, resets cursor position to 0, and sets the buffer to dirty for rendering
 void oled_clear(void);

-// Renders the dirty chunks of the buffer to OLED display
-void oled_render(void);
+// Alias to oled_render_dirty to avoid a change in api.
+#define oled_render() oled_render_dirty(false)
+
+// Renders all dirty blocks to the display at one time or a subset depending on the value of
+// all.
+void oled_render_dirty(bool all);

 // Moves cursor to character position indicated by column and line, wraps if out of bounds
 // Max column denoted by 'oled_max_chars()' and max lines by 'oled_max_lines()' functions
@ -334,8 +360,6 @@ void oled_write_ln(const char *data, bool invert);

 // Pans the buffer to the right (or left by passing true) by moving contents of the buffer
 // Useful for moving the screen in preparation for new drawing
-// oled_scroll_left or oled_scroll_right should be preferred for all cases of moving a static
-// image such as a logo or to avoid burn-in as it's much, much less cpu intensive
 void oled_pan(bool left);

 // Returns a pointer to the requested start index in the buffer plus remaining
@ -352,6 +376,7 @@ void oled_write_raw_byte(const char data, uint16_t index);
 // Coordinates start at top-left and go right and down for positive x and y
 void oled_write_pixel(uint8_t x, uint8_t y, bool on);

+#if defined(__AVR__)
 // Writes a PROGMEM string to the buffer at current cursor position
 // Advances the cursor while writing, inverts the pixels if true
 // Remapped to call 'void oled_write(const char *data, bool invert);' on ARM
@ -365,6 +390,11 @@ void oled_write_ln_P(const char *data, bool invert);

 // Writes a PROGMEM string to the buffer at current cursor position
 void oled_write_raw_P(const char *data, uint16_t size);
+#else
+#    define oled_write_P(data, invert) oled_write(data, invert)
+#    define oled_write_ln_P(data, invert) oled_write_ln(data, invert)
+#    define oled_write_raw_P(data, size) oled_write_raw(data, size)
+#endif // defined(__AVR__)

 // Can be used to manually turn on the screen if it is off
 // Returns true if the screen was on or turns on
--- a/docs/feature_os_detection.md
+++ b/docs/feature_os_detection.md
@ -36,10 +36,15 @@ This time is quite short, probably hundreds of milliseconds, but this data may b

 If OS is guessed incorrectly, you may want to collect data about USB setup packets to refine the detection logic.

-To do so in your `rules.mk` add:
+To do so in your `config.h` add:
+
+```c
+#define OS_DETECTION_DEBUG_ENABLE
+```
+
+And in your `rules.mk` add:

 ```make
-OS_DETECTION_DEBUG_ENABLE = yes
 CONSOLE_ENABLE = yes
 ```

--- a/docs/feature_pointing_device.md
+++ b/docs/feature_pointing_device.md
@ -74,6 +74,71 @@ The Analog Joystick is an analog (ADC) driven sensor.  There are a variety of jo
 | `ANALOG_JOYSTICK_SPEED_MAX`       | (Optional) The maximum value used for motion.                              | `2`           |
 | `ANALOG_JOYSTICK_CLICK_PIN`       | (Optional) The pin wired up to the press switch of the analog stick.       | _not defined_ |

+### Azoteq IQS5XX Trackpad
+
+To use a Azoteq IQS5XX trackpad, add this to your `rules.mk`:
+
+```make
+POINTING_DEVICE_DRIVER = azoteq_iqs5xx
+```
+
+This supports the  IQS525, IQS550 and IQS572 controllers, with the latter two being used in the TPS43 and TPS65 trackpads.
+
+#### Device settings
+
+Specific device profiles are provided which set the required values for dimensions and resolution.
+
+| Setting                          | Description                                                |
+| -------------------------------- | ---------------------------------------------------------- |
+| `AZOTEQ_IQS5XX_TPS43`            | (Pick One) Sets resolution/mm to TPS43 specifications.     |
+| `AZOTEQ_IQS5XX_TPS65`            | (Pick One) Sets resolution/mm to TPS65 specifications.     |
+
+?> If using one of the above defines you can skip to gesture settings.
+
+| Setting                          | Description                                                | Default       |
+| -------------------------------- | ---------------------------------------------------------- | ------------- |
+| `AZOTEQ_IQS5XX_WIDTH_MM`         | (Required) Width of the trackpad sensor in millimeters.    | _not defined_ |
+| `AZOTEQ_IQS5XX_HEIGHT_MM`        | (Required) Height of the trackpad sensor in millimeters.   | _not defined_ |
+| `AZOTEQ_IQS5XX_RESOLUTION_X`     | (Optional) Specify X resolution for CPI calculation.       | _not defined_ |
+| `AZOTEQ_IQS5XX_RESOLUTION_Y`     | (Optional) Specify Y resolution for CPI calculation.       | _not defined_ |
+
+**`AZOTEQ_IQS5XX_RESOLUTION_X/Y`** fall back resolutions are provided within the driver based on controller model.
+
+| I2C Setting               | Description                                                                     | Default |
+| ------------------------- | ------------------------------------------------------------------------------- | ------- |
+| `AZOTEQ_IQS5XX_ADDRESS`   | (Optional) Sets the I2C Address for the Azoteq trackpad                         | `0xE8`  |
+| `AZOTEQ_IQS5XX_TIMEOUT_MS`| (Optional) The timeout for i2c communication with in milliseconds.              | `10`    |
+
+#### Gesture settings
+
+| Setting                                   | Description                                                                          | Default     |
+| ----------------------------------------- | ------------------------------------------------------------------------------------ | ----------- |
+| `AZOTEQ_IQS5XX_TAP_ENABLE`                | (Optional) Enable single finger tap. (Left click)                                    | `true`      |
+| `AZOTEQ_IQS5XX_TWO_FINGER_TAP_ENABLE`     | (Optional) Enable two finger tap. (Right click)                                      | `true`      |
+| `AZOTEQ_IQS5XX_PRESS_AND_HOLD_ENABLE`     | (Optional) Emulates holding left click to select text.                               | `false`     |
+| `AZOTEQ_IQS5XX_SWIPE_X_ENABLE`            | (Optional) Enable swipe gestures X+ (Mouse Button 5) / X- (Mouse Button 4)           | `false`     |
+| `AZOTEQ_IQS5XX_SWIPE_Y_ENABLE`            | (Optional) Enable swipe gestures Y+ (Mouse Button 3) / Y- (Mouse Button 6)           | `false`     |
+| `AZOTEQ_IQS5XX_ZOOM_ENABLE`               | (Optional) Enable zoom gestures Zoom Out (Mouse Button 7) / Zoom In (Mouse Button 8) | `false`     |
+| `AZOTEQ_IQS5XX_SCROLL_ENABLE`             | (Optional) Enable scrolling using two fingers.                                       | `true`      |
+| `AZOTEQ_IQS5XX_TAP_TIME`                  | (Optional) Maximum time in ms for tap to be registered.                              | `150`       |
+| `AZOTEQ_IQS5XX_TAP_DISTANCE`              | (Optional) Maximum deviation in pixels before single tap is no longer valid.         | `25`        |
+| `AZOTEQ_IQS5XX_HOLD_TIME`                 | (Optional) Minimum time in ms for press and hold.                                    | `300`       |
+| `AZOTEQ_IQS5XX_SWIPE_INITIAL_TIME`        | (Optional) Maximum time to travel initial distance before swipe is registered.       | `150`       |
+| `AZOTEQ_IQS5XX_SWIPE_INITIAL_DISTANCE`    | (Optional) Minimum travel in pixels before swipe is registered.                      | `300`       |
+| `AZOTEQ_IQS5XX_SWIPE_CONSECUTIVE_TIME`    | (Optional) Maximum time to travel consecutive distance before swipe is registered.   | `0`         |
+| `AZOTEQ_IQS5XX_SWIPE_CONSECUTIVE_DISTANCE`| (Optional) Minimum travel in pixels before a consecutive swipe is registered.        | `2000`      |
+| `AZOTEQ_IQS5XX_SCROLL_INITIAL_DISTANCE`   | (Optional) Minimum travel in pixels before scroll is registered.                     | `50`        |
+| `AZOTEQ_IQS5XX_ZOOM_INITIAL_DISTANCE`     | (Optional) Minimum travel in pixels before zoom is registered.                       | `50`        |
+| `AZOTEQ_IQS5XX_ZOOM_CONSECUTIVE_DISTANCE` | (Optional) Maximum time to travel zoom distance before zoom is registered.           | `25`        |
+
+#### Rotation settings
+
+| Setting                      | Description                                                | Default       |
+| ---------------------------- | ---------------------------------------------------------- | ------------- |
+| `AZOTEQ_IQS5XX_ROTATION_90`  | (Optional) Configures hardware for 90 degree rotation.     | _not defined_ |
+| `AZOTEQ_IQS5XX_ROTATION_180` | (Optional) Configures hardware for 180 degree rotation.    | _not defined_ |
+| `AZOTEQ_IQS5XX_ROTATION_270` | (Optional) Configures hardware for 270 degree rotation.    | _not defined_ |
+
 ### Cirque Trackpad

 To use the Cirque Trackpad sensor, add this to your `rules.mk`:
@ -735,9 +800,11 @@ layer_state_t layer_state_set_user(layer_state_t state) {

 #### Set different target layer when a particular layer is active:

-The below code will change the auto mouse layer target to `_MOUSE_LAYER_2` when `_DEFAULT_LAYER_2` is highest default layer state.   
-*NOTE: that `auto_mouse_layer_off` is used here instead of `remove_auto_mouse_layer` as `default_layer_state_set_*` stack is separate from the `layer_state_set_*` stack* if something similar was to be done in `layer_state_set_user `state = remove_auto_mouse_layer(state, false)` should be used instead    
-*ADDITIONAL NOTE: `AUTO_MOUSE_TARGET_LAYER` is checked if already set to avoid deactivating the target layer unless needed*   
+The below code will change the auto mouse layer target to `_MOUSE_LAYER_2` when `_DEFAULT_LAYER_2` is highest default layer state.
+
+*NOTE: that `auto_mouse_layer_off` is used here instead of `remove_auto_mouse_layer` as `default_layer_state_set_*` stack is separate from the `layer_state_set_*` stack*, if something similar was to be done in `layer_state_set_user`, `state = remove_auto_mouse_layer(state, false)` should be used instead.
+
+*ADDITIONAL NOTE: `AUTO_MOUSE_TARGET_LAYER` is checked if already set to avoid deactivating the target layer unless needed*.

 ```c
 // in keymap.c
--- a/docs/feature_rgb_matrix.md
+++ b/docs/feature_rgb_matrix.md
@ -19,15 +19,14 @@ You can use between 1 and 4 IS31FL3731 IC's. Do not specify `DRIVER_ADDR_<N>` de

 | Variable | Description | Default |
 |----------|-------------|---------|
-| `ISSI_TIMEOUT` | (Optional) How long to wait for i2c messages, in milliseconds | 100 |
-| `ISSI_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 |
-| `ISSI_3731_DEGHOST` | (Optional) Set this define to enable de-ghosting by halving Vcc during blanking time | |
-| `DRIVER_COUNT` | (Required) How many RGB driver IC's are present | |
+| `IS31FL3731_I2C_TIMEOUT` | (Optional) How long to wait for i2c messages, in milliseconds | 100 |
+| `IS31FL3731_I2C_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 |
+| `IS31FL3731_DEGHOST` | (Optional) Set this define to enable de-ghosting by halving Vcc during blanking time | |
 | `RGB_MATRIX_LED_COUNT` | (Required) How many RGB lights are present across all drivers | |
-| `DRIVER_ADDR_1` | (Required) Address for the first RGB driver | |
-| `DRIVER_ADDR_2` | (Optional) Address for the second RGB driver | |
-| `DRIVER_ADDR_3` | (Optional) Address for the third RGB driver | |
-| `DRIVER_ADDR_4` | (Optional) Address for the fourth RGB driver | |
+| `IS31FL3731_I2C_ADDRESS_1` | (Required) Address for the first RGB driver | |
+| `IS31FL3731_I2C_ADDRESS_2` | (Optional) Address for the second RGB driver | |
+| `IS31FL3731_I2C_ADDRESS_3` | (Optional) Address for the third RGB driver | |
+| `IS31FL3731_I2C_ADDRESS_4` | (Optional) Address for the fourth RGB driver | |

 Here is an example using 2 drivers.

@ -35,14 +34,15 @@ Here is an example using 2 drivers.
 // This is a 7-bit address, that gets left-shifted and bit 0
 // set to 0 for write, 1 for read (as per I2C protocol)
 // The address will vary depending on your wiring:
-// 0b1110100 AD <-> GND
-// 0b1110111 AD <-> VCC
-// 0b1110101 AD <-> SCL
-// 0b1110110 AD <-> SDA
-#define DRIVER_ADDR_1 0b1110100
-#define DRIVER_ADDR_2 0b1110110
+// 00 AD <-> GND
+// 01 AD <-> SCL
+// 10 AD <-> SDA
+// 11 AD <-> VCC
+// ADDR represents A1:A0 of the 7-bit address.
+// The result is: 0b11101(ADDR)
+#define IS31FL3731_I2C_ADDRESS_1 IS31FL3731_I2C_ADDRESS_GND
+#define IS31FL3731_I2C_ADDRESS_2 IS31FL3731_I2C_ADDRESS_SDA

-#define DRIVER_COUNT 2
 #define DRIVER_1_LED_TOTAL 25
 #define DRIVER_2_LED_TOTAL 24
 #define RGB_MATRIX_LED_COUNT (DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL)
@ -50,12 +50,12 @@ Here is an example using 2 drivers.

 !> Note the parentheses, this is so when `RGB_MATRIX_LED_COUNT` is used in code and expanded, the values are added together before any additional math is applied to them. As an example, `rand() % (DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL)` will give very different results than `rand() % DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL`.

-For split keyboards using `RGB_MATRIX_SPLIT` with an LED driver, you can either have the same driver address or different driver addresses. If using different addresses, use `DRIVER_ADDR_1` for one and `DRIVER_ADDR_2` for the other one. Then, in `g_is31_leds`, fill out the correct driver index (0 or 1). If using one address, use `DRIVER_ADDR_1` for both, and use index 0 for `g_is31_leds`.
+For split keyboards using `RGB_MATRIX_SPLIT` with an LED driver, you can either have the same driver address or different driver addresses. If using different addresses, use `IS31FL3731_I2C_ADDRESS_1` for one and `IS31FL3731_I2C_ADDRESS_2` for the other one. Then, in `g_is31fl3731_leds`, fill out the correct driver index (0 or 1). If using one address, use `IS31FL3731_I2C_ADDRESS_1` for both, and use index 0 for `g_is31fl3731_leds`.

 Define these arrays listing all the LEDs in your `<keyboard>.c`:

 ```c
-const is31_led PROGMEM g_is31_leds[RGB_MATRIX_LED_COUNT] = {
+const is31fl3731_led_t PROGMEM g_is31fl3731_leds[RGB_MATRIX_LED_COUNT] = {
 /* Refer to IS31 manual for these locations
 *   driver
 *   |  R location
@ -83,34 +83,33 @@ You can use between 1 and 4 IS31FL3733 IC's. Do not specify `DRIVER_ADDR_<N>` de

 | Variable | Description | Default |
 |----------|-------------|---------|
-| `ISSI_TIMEOUT` | (Optional) How long to wait for i2c messages, in milliseconds | 100 |
-| `ISSI_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 |
-| `ISSI_PWM_FREQUENCY` | (Optional) PWM Frequency Setting - IS31FL3733B only | 0 |
-| `ISSI_GLOBALCURRENT` | (Optional) Configuration for the Global Current Register | 0xFF |
-| `ISSI_SWPULLUP` | (Optional) Set the value of the SWx lines on-chip de-ghosting resistors | PUR_0R (Disabled) |
-| `ISSI_CSPULLUP` | (Optional) Set the value of the CSx lines on-chip de-ghosting resistors | PUR_0R (Disabled) |
-| `DRIVER_COUNT` | (Required) How many RGB driver IC's are present | |
+| `IS31FL3733_I2C_TIMEOUT` | (Optional) How long to wait for i2c messages, in milliseconds | 100 |
+| `IS31FL3733_I2C_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 |
+| `IS31FL3733_PWM_FREQUENCY` | (Optional) PWM Frequency Setting - IS31FL3733B only | 0 |
+| `IS31FL3733_GLOBALCURRENT` | (Optional) Configuration for the Global Current Register | 0xFF |
+| `IS31FL3733_SWPULLUP` | (Optional) Set the value of the SWx lines on-chip de-ghosting resistors | PUR_0R (Disabled) |
+| `IS31FL3733_CSPULLUP` | (Optional) Set the value of the CSx lines on-chip de-ghosting resistors | PUR_0R (Disabled) |
 | `RGB_MATRIX_LED_COUNT` | (Required) How many RGB lights are present across all drivers | |
-| `DRIVER_ADDR_1` | (Required) Address for the first RGB driver | |
-| `DRIVER_ADDR_2` | (Optional) Address for the second RGB driver | |
-| `DRIVER_ADDR_3` | (Optional) Address for the third RGB driver | |
-| `DRIVER_ADDR_4` | (Optional) Address for the fourth RGB driver | |
-| `DRIVER_SYNC_1` | (Optional) Sync configuration for the first RGB driver | 0 |
-| `DRIVER_SYNC_2` | (Optional) Sync configuration for the second RGB driver | 0 |
-| `DRIVER_SYNC_3` | (Optional) Sync configuration for the third RGB driver | 0 |
-| `DRIVER_SYNC_4` | (Optional) Sync configuration for the fourth RGB driver | 0 |
+| `IS31FL3733_I2C_ADDRESS_1` | (Required) Address for the first RGB driver | |
+| `IS31FL3733_I2C_ADDRESS_2` | (Optional) Address for the second RGB driver | |
+| `IS31FL3733_I2C_ADDRESS_3` | (Optional) Address for the third RGB driver | |
+| `IS31FL3733_I2C_ADDRESS_4` | (Optional) Address for the fourth RGB driver | |
+| `IS31FL3733_SYNC_1` | (Optional) Sync configuration for the first RGB driver | 0 |
+| `IS31FL3733_SYNC_2` | (Optional) Sync configuration for the second RGB driver | 0 |
+| `IS31FL3733_SYNC_3` | (Optional) Sync configuration for the third RGB driver | 0 |
+| `IS31FL3733_SYNC_4` | (Optional) Sync configuration for the fourth RGB driver | 0 |

-The IS31FL3733 IC's have on-chip resistors that can be enabled to allow for de-ghosting of the RGB matrix. By default these resistors are not enabled (`ISSI_SWPULLUP`/`ISSI_CSPULLUP` are given the value of`PUR_0R`), the values that can be set to enable de-ghosting are as follows:
+The IS31FL3733 IC's have on-chip resistors that can be enabled to allow for de-ghosting of the RGB matrix. By default these resistors are not enabled (`IS31FL3733_SWPULLUP`/`IS31FL3733_CSPULLUP` are given the value of `IS31FL3733_PUR_0R`), the values that can be set to enable de-ghosting are as follows:

-| `ISSI_SWPULLUP/ISSI_CSPULLUP` | Description |
+| `IS31FL3733_SWPULLUP/IS31FL3733_CSPULLUP` | Description |
 |----------------------|-------------|
-| `PUR_0R` | (default) Do not use the on-chip resistors/enable de-ghosting |
-| `PUR_05KR` | The 0.5k Ohm resistor used during blanking period (t_NOL) |
-| `PUR_3KR` | The 3k Ohm resistor used at all times |
-| `PUR_4KR` | The 4k Ohm resistor used at all times |
-| `PUR_8KR` | The 8k Ohm resistor used at all times |
-| `PUR_16KR` | The 16k Ohm resistor used at all times |
-| `PUR_32KR` | The 32k Ohm resistor used during blanking period (t_NOL) |
+| `IS31FL3733_PUR_0R` | (default) Do not use the on-chip resistors/enable de-ghosting |
+| `IS31FL3733_PUR_05KR` | The 0.5k Ohm resistor used during blanking period (t_NOL) |
+| `IS31FL3733_PUR_3KR` | The 3k Ohm resistor used at all times |
+| `IS31FL3733_PUR_4KR` | The 4k Ohm resistor used at all times |
+| `IS31FL3733_PUR_8KR` | The 8k Ohm resistor used at all times |
+| `IS31FL3733_PUR_16KR` | The 16k Ohm resistor used at all times |
+| `IS31FL3733_PUR_32KR` | The 32k Ohm resistor used during blanking period (t_NOL) |

 Here is an example using 2 drivers.

@ -118,17 +117,16 @@ Here is an example using 2 drivers.
 // This is a 7-bit address, that gets left-shifted and bit 0
 // set to 0 for write, 1 for read (as per I2C protocol)
 // The address will vary depending on your wiring:
-// 00 <-> GND
-// 01 <-> SCL
-// 10 <-> SDA
-// 11 <-> VCC
+// 00 ADDRn <-> GND
+// 01 ADDRn <-> SCL
+// 10 ADDRn <-> SDA
+// 11 ADDRn <-> VCC
 // ADDR1 represents A1:A0 of the 7-bit address.
 // ADDR2 represents A3:A2 of the 7-bit address.
 // The result is: 0b101(ADDR2)(ADDR1)
-#define DRIVER_ADDR_1 0b1010000
-#define DRIVER_ADDR_2 0b1010011
+#define IS31FL3733_I2C_ADDRESS_1 IS31FL3733_I2C_ADDRESS_GND_GND
+#define IS31FL3733_I2C_ADDRESS_2 IS31FL3733_I2C_ADDRESS_GND_VCC

-#define DRIVER_COUNT 2
 #define DRIVER_1_LED_TOTAL 58
 #define DRIVER_2_LED_TOTAL 10
 #define RGB_MATRIX_LED_COUNT (DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL)
@ -141,7 +139,7 @@ Currently only 4 drivers are supported, but it would be trivial to support all 8
 Define these arrays listing all the LEDs in your `<keyboard>.c`:

 ```c
-const is31_led PROGMEM g_is31_leds[RGB_MATRIX_LED_COUNT] = {
+const is31fl3733_led_t PROGMEM g_is31fl3733_leds[RGB_MATRIX_LED_COUNT] = {
 /* Refer to IS31 manual for these locations
 *   driver
 *   |  R location
@ -170,31 +168,30 @@ Configure the hardware via your `config.h`:

 | Variable | Description | Default |
 |----------|-------------|---------|
-| `ISSI_TIMEOUT` | (Optional) How long to wait for i2c messages, in milliseconds | 100 |
-| `ISSI_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 |
-| `ISSI_PWM_FREQUENCY` | (Optional) PWM Frequency Setting - IS31FL3736B only | 0 |
-| `ISSI_GLOBALCURRENT` | (Optional) Configuration for the Global Current Register | 0xFF |
-| `ISSI_SWPULLUP` | (Optional) Set the value of the SWx lines on-chip de-ghosting resistors | PUR_0R (Disabled) |
-| `ISSI_CSPULLUP` | (Optional) Set the value of the CSx lines on-chip de-ghosting resistors | PUR_0R (Disabled) |
-| `DRIVER_COUNT` | (Required) How many RGB driver IC's are present | |
+| `IS31FL3736_I2C_TIMEOUT` | (Optional) How long to wait for i2c messages, in milliseconds | 100 |
+| `IS31FL3736_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 |
+| `IS31FL3736_PWM_FREQUENCY` | (Optional) PWM Frequency Setting - IS31FL3736B only | 0 |
+| `IS31FL3736_GLOBALCURRENT` | (Optional) Configuration for the Global Current Register | 0xFF |
+| `IS31FL3736_SWPULLUP` | (Optional) Set the value of the SWx lines on-chip de-ghosting resistors | PUR_0R (Disabled) |
+| `IS31FL3736_CSPULLUP` | (Optional) Set the value of the CSx lines on-chip de-ghosting resistors | PUR_0R (Disabled) |
 | `RGB_MATRIX_LED_COUNT` | (Required) How many RGB lights are present across all drivers | |
-| `DRIVER_ADDR_1` | (Required) Address for the first RGB driver | |
-| `DRIVER_ADDR_2` | (Optional) Address for the second RGB driver | |
-| `DRIVER_ADDR_3` | (Optional) Address for the third RGB driver | |
-| `DRIVER_ADDR_4` | (Optional) Address for the fourth RGB driver | |
+| `IS31FL3736_I2C_ADDRESS_1` | (Required) Address for the first RGB driver | |
+| `IS31FL3736_I2C_ADDRESS_2` | (Optional) Address for the second RGB driver | |
+| `IS31FL3736_I2C_ADDRESS_3` | (Optional) Address for the third RGB driver | |
+| `IS31FL3736_I2C_ADDRESS_4` | (Optional) Address for the fourth RGB driver | |

-The IS31FL3736 IC's have on-chip resistors that can be enabled to allow for de-ghosting of the RGB matrix. By default these resistors are not enabled (`ISSI_SWPULLUP`/`ISSI_CSPULLUP` are given the value of`PUR_0R`), the values that can be set to enable de-ghosting are as follows:
+The IS31FL3736 IC's have on-chip resistors that can be enabled to allow for de-ghosting of the RGB matrix. By default these resistors are not enabled (`IS31FL3736_SWPULLUP`/`IS31FL3736_CSPULLUP` are given the value of `IS31FL3736_PUR_0R`), the values that can be set to enable de-ghosting are as follows:

-| `ISSI_SWPULLUP/ISSI_CSPULLUP` | Description |
+| `IS31FL3736_SWPULLUP/IS31FL3736_CSPULLUP` | Description |
 |----------------------|-------------|
-| `PUR_0R` | (default) Do not use the on-chip resistors/enable de-ghosting |
-| `PUR_05KR` | The 0.5k Ohm resistor used during blanking period (t_NOL) |
-| `PUR_1KR` | The 1k Ohm resistor used during blanking period (t_NOL) |
-| `PUR_2KR` | The 2k Ohm resistor used during blanking period (t_NOL) |
-| `PUR_4KR` | The 4k Ohm resistor used during blanking period (t_NOL) |
-| `PUR_8KR` | The 8k Ohm resistor during blanking period (t_NOL) |
-| `PUR_16KR` | The 16k Ohm resistor during blanking period (t_NOL) |
-| `PUR_32KR` | The 32k Ohm resistor used during blanking period (t_NOL) |
+| `IS31FL3736_PUR_0R` | (default) Do not use the on-chip resistors/enable de-ghosting |
+| `IS31FL3736_PUR_05KR` | The 0.5k Ohm resistor used during blanking period (t_NOL) |
+| `IS31FL3736_PUR_1KR` | The 1k Ohm resistor used during blanking period (t_NOL) |
+| `IS31FL3736_PUR_2KR` | The 2k Ohm resistor used during blanking period (t_NOL) |
+| `IS31FL3736_PUR_4KR` | The 4k Ohm resistor used during blanking period (t_NOL) |
+| `IS31FL3736_PUR_8KR` | The 8k Ohm resistor during blanking period (t_NOL) |
+| `IS31FL3736_PUR_16KR` | The 16k Ohm resistor during blanking period (t_NOL) |
+| `IS31FL3736_PUR_32KR` | The 32k Ohm resistor used during blanking period (t_NOL) |

 Here is an example using 2 drivers.

@ -202,16 +199,16 @@ Here is an example using 2 drivers.
 // This is a 7-bit address, that gets left-shifted and bit 0
 // set to 0 for write, 1 for read (as per I2C protocol)
 // The address will vary depending on your wiring:
-// 0000 <-> GND
-// 0101 <-> SCL
-// 1010 <-> SDA
-// 1111 <-> VCC
-// ADDR represents A3:A0 of the 7-bit address.
-// The result is: 0b101(ADDR)
-#define DRIVER_ADDR_1 0b1010000
-#define DRIVER_ADDR_2 0b1010001
+// 00 ADDRn <-> GND
+// 01 ADDRn <-> SCL
+// 10 ADDRn <-> SDA
+// 11 ADDRn <-> VCC
+// ADDR1 represents A1:A0 of the 7-bit address.
+// ADDR2 represents A3:A2 of the 7-bit address.
+// The result is: 0b101(ADDR2)(ADDR1)
+#define IS31FL3736_I2C_ADDRESS_1 IS31FL3736_I2C_ADDRESS_GND_GND
+#define IS31FL3736_I2C_ADDRESS_2 IS31FL3736_I2C_ADDRESS_GND_SCL

-#define DRIVER_COUNT 2
 #define DRIVER_1_LED_TOTAL 30
 #define DRIVER_2_LED_TOTAL 32
 #define RGB_MATRIX_LED_COUNT (DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL)
@ -221,7 +218,7 @@ Here is an example using 2 drivers.
 Define these arrays listing all the LEDs in your `<keyboard>.c`:

 ```c
-const is31_led PROGMEM g_is31_leds[RGB_MATRIX_LED_COUNT] = {
+const is31fl3736_led_t PROGMEM g_is31fl3736_leds[RGB_MATRIX_LED_COUNT] = {
 /* Refer to IS31 manual for these locations
 *   driver
 *   |  R location
@ -246,31 +243,30 @@ Configure the hardware via your `config.h`:

 | Variable | Description | Default |
 |----------|-------------|---------|
-| `ISSI_TIMEOUT` | (Optional) How long to wait for i2c messages, in milliseconds | 100 |
-| `ISSI_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 |
-| `ISSI_PWM_FREQUENCY` | (Optional) PWM Frequency Setting - IS31FL3737B only | 0 |
-| `ISSI_GLOBALCURRENT` | (Optional) Configuration for the Global Current Register | 0xFF |
-| `ISSI_SWPULLUP` | (Optional) Set the value of the SWx lines on-chip de-ghosting resistors | PUR_0R (Disabled) |
-| `ISSI_CSPULLUP` | (Optional) Set the value of the CSx lines on-chip de-ghosting resistors | PUR_0R (Disabled) |
-| `DRIVER_COUNT` | (Required) How many RGB driver IC's are present | |
+| `IS31FL3737_I2C_TIMEOUT` | (Optional) How long to wait for i2c messages, in milliseconds | 100 |
+| `IS31FL3737_I2C_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 |
+| `IS31FL3737_PWM_FREQUENCY` | (Optional) PWM Frequency Setting - IS31FL3737B only | 0 |
+| `IS31FL3737_GLOBALCURRENT` | (Optional) Configuration for the Global Current Register | 0xFF |
+| `IS31FL3737_SWPULLUP` | (Optional) Set the value of the SWx lines on-chip de-ghosting resistors | PUR_0R (Disabled) |
+| `IS31FL3737_CSPULLUP` | (Optional) Set the value of the CSx lines on-chip de-ghosting resistors | PUR_0R (Disabled) |
 | `RGB_MATRIX_LED_COUNT` | (Required) How many RGB lights are present across all drivers | |
-| `DRIVER_ADDR_1` | (Required) Address for the first RGB driver | |
-| `DRIVER_ADDR_2` | (Optional) Address for the second RGB driver | |
-| `DRIVER_ADDR_3` | (Optional) Address for the third RGB driver | |
-| `DRIVER_ADDR_4` | (Optional) Address for the fourth RGB driver | |
+| `IS31FL3737_I2C_ADDRESS_1` | (Required) Address for the first RGB driver | |
+| `IS31FL3737_I2C_ADDRESS_2` | (Optional) Address for the second RGB driver | |
+| `IS31FL3737_I2C_ADDRESS_3` | (Optional) Address for the third RGB driver | |
+| `IS31FL3737_I2C_ADDRESS_4` | (Optional) Address for the fourth RGB driver | |

-The IS31FL3737 IC's have on-chip resistors that can be enabled to allow for de-ghosting of the RGB matrix. By default these resistors are not enabled (`ISSI_SWPULLUP`/`ISSI_CSPULLUP` are given the value of`PUR_0R`), the values that can be set to enable de-ghosting are as follows:
+The IS31FL3737 IC's have on-chip resistors that can be enabled to allow for de-ghosting of the RGB matrix. By default these resistors are not enabled (`IS31FL3737_SWPULLUP`/`IS31FL3737_CSPULLUP` are given the value of `IS31FL3737_PUR_0R`), the values that can be set to enable de-ghosting are as follows:

-| `ISSI_SWPULLUP/ISSI_CSPULLUP` | Description |
+| `IS31FL3737_SWPULLUP/IS31FL3737_CSPULLUP` | Description |
 |----------------------|-------------|
-| `PUR_0R` | (default) Do not use the on-chip resistors/enable de-ghosting |
-| `PUR_05KR` | The 0.5k Ohm resistor used during blanking period (t_NOL) |
-| `PUR_1KR` | The 1k Ohm resistor used during blanking period (t_NOL) |
-| `PUR_2KR` | The 2k Ohm resistor used during blanking period (t_NOL) |
-| `PUR_4KR` | The 4k Ohm resistor used during blanking period (t_NOL) |
-| `PUR_8KR` | The 8k Ohm resistor during blanking period (t_NOL) |
-| `PUR_16KR` | The 16k Ohm resistor during blanking period (t_NOL) |
-| `PUR_32KR` | The 32k Ohm resistor used during blanking period (t_NOL) |
+| `IS31FL3737_PUR_0R` | (default) Do not use the on-chip resistors/enable de-ghosting |
+| `IS31FL3737_PUR_05KR` | The 0.5k Ohm resistor used during blanking period (t_NOL) |
+| `IS31FL3737_PUR_1KR` | The 1k Ohm resistor used during blanking period (t_NOL) |
+| `IS31FL3737_PUR_2KR` | The 2k Ohm resistor used during blanking period (t_NOL) |
+| `IS31FL3737_PUR_4KR` | The 4k Ohm resistor used during blanking period (t_NOL) |
+| `IS31FL3737_PUR_8KR` | The 8k Ohm resistor during blanking period (t_NOL) |
+| `IS31FL3737_PUR_16KR` | The 16k Ohm resistor during blanking period (t_NOL) |
+| `IS31FL3737_PUR_32KR` | The 32k Ohm resistor used during blanking period (t_NOL) |

 Here is an example using 2 drivers.

@ -278,16 +274,15 @@ Here is an example using 2 drivers.
 // This is a 7-bit address, that gets left-shifted and bit 0
 // set to 0 for write, 1 for read (as per I2C protocol)
 // The address will vary depending on your wiring:
-// 0000 <-> GND
-// 0101 <-> SCL
-// 1010 <-> SDA
-// 1111 <-> VCC
+// 0000 ADDR <-> GND
+// 0101 ADDR <-> SCL
+// 1010 ADDR <-> SDA
+// 1111 ADDR <-> VCC
 // ADDR represents A3:A0 of the 7-bit address.
 // The result is: 0b101(ADDR)
-#define DRIVER_ADDR_1 0b1010000
-#define DRIVER_ADDR_2 0b1010001
+#define IS31FL3737_I2C_ADDRESS_1 IS31FL3737_I2C_ADDRESS_GND
+#define IS31FL3737_I2C_ADDRESS_2 IS31FL3737_I2C_ADDRESS_SCL

-#define DRIVER_COUNT 2
 #define DRIVER_1_LED_TOTAL 30
 #define DRIVER_2_LED_TOTAL 36
 #define RGB_MATRIX_LED_COUNT (DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL)
@ -297,7 +292,7 @@ Here is an example using 2 drivers.
 Define these arrays listing all the LEDs in your `<keyboard>.c`:

 ```c
-const is31_led PROGMEM g_is31_leds[RGB_MATRIX_LED_COUNT] = {
+const is31fl3737_led_t PROGMEM g_is31fl3737_leds[RGB_MATRIX_LED_COUNT] = {
 /* Refer to IS31 manual for these locations
 *   driver
 *   |  R location
@ -338,7 +333,6 @@ Configure the hardware via your `config.h`:
 |----------|-------------|---------|
 | `ISSI_TIMEOUT` | (Optional) How long to wait for i2c messages, in milliseconds | 100 |
 | `ISSI_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 |
-| `DRIVER_COUNT` | (Required) How many RGB driver IC's are present | |
 | `RGB_MATRIX_LED_COUNT` | (Required) How many RGB lights are present across all drivers | |
 | `DRIVER_ADDR_1` | (Optional) Address for the first RGB driver | |
 | `DRIVER_ADDR_<N>` | (Required) Address for the additional RGB drivers | |
@ -373,7 +367,6 @@ Here is an example using 2 drivers.
 ```c
 #define DRIVER_ADDR_2 0b0100001

-#define DRIVER_COUNT 2
 #define DRIVER_1_LED_TOTAL 66
 #define DRIVER_2_LED_TOTAL 42
 #define RGB_MATRIX_LED_COUNT (DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL)
@ -407,7 +400,7 @@ Then Define the array listing all the LEDs you want to override in your `<keyboa

 ```c
 const is31_led PROGMEM g_is31_scaling[ISSI_MANUAL_SCALING] = {
- *   LED Index
+/*   LED Index
 *   |  R scaling
 *   |  |    G scaling
 *   |  |    |    B scaling
@ -465,41 +458,39 @@ Configure the hardware via your `config.h`:
 ```

 ---
-### AW20216 :id=aw20216
-There is basic support for addressable RGB matrix lighting with the SPI AW20216 RGB controller. To enable it, add this to your `rules.mk`:
+### AW20216S :id=aw20216s
+There is basic support for addressable RGB matrix lighting with the SPI AW20216S RGB controller. To enable it, add this to your `rules.mk`:

 ```make
 RGB_MATRIX_ENABLE = yes
-RGB_MATRIX_DRIVER = aw20216
+RGB_MATRIX_DRIVER = aw20216s
 ```

-You can use up to 2 AW20216 IC's. Do not specify `DRIVER_<N>_xxx` defines for IC's that are not present on your keyboard. You can define the following items in `config.h`:
+You can use up to 2 AW20216S IC's. Do not specify `DRIVER_<N>_xxx` defines for IC's that are not present on your keyboard. You can define the following items in `config.h`:

 | Variable | Description | Default |
 |----------|-------------|---------|
-| `DRIVER_1_CS` | (Required) MCU pin connected to first RGB driver chip select line  | B13 |
-| `DRIVER_2_CS` | (Optional) MCU pin connected to second RGB driver chip select line  | |
-| `DRIVER_1_EN` | (Required) MCU pin connected to first RGB driver hardware enable line  | C13 |
-| `DRIVER_2_EN` | (Optional) MCU pin connected to second RGB driver hardware enable line  | |
+| `AW20216S_CS_PIN_1` | (Required) MCU pin connected to first RGB driver chip select line  | B13 |
+| `AW20216S_CS_PIN_2` | (Optional) MCU pin connected to second RGB driver chip select line  | |
+| `AW20216S_EN_PIN_1` | (Required) MCU pin connected to first RGB driver hardware enable line  | C13 |
+| `AW20216S_EN_PIN_2` | (Optional) MCU pin connected to second RGB driver hardware enable line  | |
 | `DRIVER_1_LED_TOTAL` | (Required) How many RGB lights are connected to first RGB driver  | |
 | `DRIVER_2_LED_TOTAL` | (Optional) How many RGB lights are connected to second RGB driver  | |
-| `DRIVER_COUNT` | (Required) How many RGB driver IC's are present | |
 | `RGB_MATRIX_LED_COUNT` | (Required) How many RGB lights are present across all drivers | |
-| `AW_SCALING_MAX` | (Optional) LED current scaling value (0-255, higher values mean LED is brighter at full PWM) | 150 |
-| `AW_GLOBAL_CURRENT_MAX` | (Optional) Driver global current limit (0-255, higher values means the driver may consume more power) | 150 |
-| `AW_SPI_MODE` | (Optional) Mode for SPI communication (0-3, defines polarity and phase of the clock) | 3 |
-| `AW_SPI_DIVISOR` | (Optional) Clock divisor for SPI communication (powers of 2, smaller numbers means faster communication, should not be less than 4) | 4 |
+| `AW20216S_SCALING_MAX` | (Optional) LED current scaling value (0-255, higher values mean LED is brighter at full PWM) | 150 |
+| `AW20216S_GLOBAL_CURRENT_MAX` | (Optional) Driver global current limit (0-255, higher values means the driver may consume more power) | 150 |
+| `AW20216S_SPI_MODE` | (Optional) Mode for SPI communication (0-3, defines polarity and phase of the clock) | 3 |
+| `AW20216S_SPI_DIVISOR` | (Optional) Clock divisor for SPI communication (powers of 2, smaller numbers means faster communication, should not be less than 4) | 4 |

 Here is an example using 2 drivers.

 ```c
-#define DRIVER_1_CS B13
-#define DRIVER_2_CS B14
+#define AW20216S_CS_PIN_1 B13
+#define AW20216S_CS_PIN_2 B14
 // Hardware enable lines may be connected to the same pin
-#define DRIVER_1_EN C13
-#define DRIVER_2_EN C13
+#define AW20216S_EN_PIN_1 C13
+#define AW20216S_EN_PIN_2 C13

-#define DRIVER_COUNT 2
 #define DRIVER_1_LED_TOTAL 66
 #define DRIVER_2_LED_TOTAL 32
 #define RGB_MATRIX_LED_COUNT (DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL)
@ -510,10 +501,10 @@ Here is an example using 2 drivers.
 Define these arrays listing all the LEDs in your `<keyboard>.c`:

 ```c
-const aw_led PROGMEM g_aw_leds[RGB_MATRIX_LED_COUNT] = {
-/* Each AW20216 channel is controlled by a register at some offset between 0x00
+const aw20216s_led_t PROGMEM g_aw20216s_leds[RGB_MATRIX_LED_COUNT] = {
+/* Each AW20216S channel is controlled by a register at some offset between 0x00
 * and 0xD7 inclusive.
- * See drivers/awinic/aw20216.h for the mapping between register offsets and
+ * See drivers/led/aw20216s.h for the mapping between register offsets and
 * driver pin locations.
 *    driver
 *    |  R location
@ -642,6 +633,7 @@ enum rgb_matrix_effects {
    RGB_MATRIX_DUAL_BEACON,         // Full gradient spinning around center of keyboard
    RGB_MATRIX_RAINBOW_BEACON,      // Full tighter gradient spinning around center of keyboard
    RGB_MATRIX_RAINBOW_PINWHEELS,   // Full dual gradients spinning two halfs of keyboard
+    RGB_MATRIX_FLOWER_BLOOMING,     // Full tighter gradient of first half scrolling left to right and second half scrolling right to left
    RGB_MATRIX_RAINDROPS,           // Randomly changes a single key's hue
    RGB_MATRIX_JELLYBEAN_RAINDROPS, // Randomly changes a single key's hue and saturation
    RGB_MATRIX_HUE_BREATHING,       // Hue shifts up a slight ammount at the same time, then shifts back
@ -654,16 +646,20 @@ enum rgb_matrix_effects {
    RGB_MATRIX_DIGITAL_RAIN,        // That famous computer simulation
    RGB_MATRIX_SOLID_REACTIVE_SIMPLE,   // Pulses keys hit to hue & value then fades value out
    RGB_MATRIX_SOLID_REACTIVE,      // Static single hue, pulses keys hit to shifted hue then fades to current hue
-    RGB_MATRIX_SOLID_REACTIVE_WIDE       // Hue & value pulse near a single key hit then fades value out
-    RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE  // Hue & value pulse near multiple key hits then fades value out
-    RGB_MATRIX_SOLID_REACTIVE_CROSS      // Hue & value pulse the same column and row of a single key hit then fades value out
-    RGB_MATRIX_SOLID_REACTIVE_MULTICROSS // Hue & value pulse the same column and row of multiple key hits then fades value out
-    RGB_MATRIX_SOLID_REACTIVE_NEXUS      // Hue & value pulse away on the same column and row of a single key hit then fades value out
-    RGB_MATRIX_SOLID_REACTIVE_MULTINEXUS // Hue & value pulse away on the same column and row of multiple key hits then fades value out
+    RGB_MATRIX_SOLID_REACTIVE_WIDE,       // Hue & value pulse near a single key hit then fades value out
+    RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE,  // Hue & value pulse near multiple key hits then fades value out
+    RGB_MATRIX_SOLID_REACTIVE_CROSS,      // Hue & value pulse the same column and row of a single key hit then fades value out
+    RGB_MATRIX_SOLID_REACTIVE_MULTICROSS, // Hue & value pulse the same column and row of multiple key hits then fades value out
+    RGB_MATRIX_SOLID_REACTIVE_NEXUS,      // Hue & value pulse away on the same column and row of a single key hit then fades value out
+    RGB_MATRIX_SOLID_REACTIVE_MULTINEXUS, // Hue & value pulse away on the same column and row of multiple key hits then fades value out
    RGB_MATRIX_SPLASH,              // Full gradient & value pulse away from a single key hit then fades value out
    RGB_MATRIX_MULTISPLASH,         // Full gradient & value pulse away from multiple key hits then fades value out
    RGB_MATRIX_SOLID_SPLASH,        // Hue & value pulse away from a single key hit then fades value out
    RGB_MATRIX_SOLID_MULTISPLASH,   // Hue & value pulse away from multiple key hits then fades value out
+    RGB_MATRIX_STARLIGHT,           // LEDs turn on and off at random at varying brightness, maintaining user set color
+    RGB_MATRIX_STARLIGHT_DUAL_HUE,  // LEDs turn on and off at random at varying brightness, modifies user set hue by +- 30
+    RGB_MATRIX_STARLIGHT_DUAL_SAT,  // LEDs turn on and off at random at varying brightness, modifies user set saturation by +- 30
+    RGB_MATRIX_RIVERFLOW,           // Modification to breathing animation, offset's animation depending on key location to simulate a river flowing
    RGB_MATRIX_EFFECT_MAX
 };
 ```
@ -694,6 +690,7 @@ You can enable a single effect by defining `ENABLE_[EFFECT_NAME]` in your `confi
 |`#define ENABLE_RGB_MATRIX_DUAL_BEACON`               |Enables `RGB_MATRIX_DUAL_BEACON`              |
 |`#define ENABLE_RGB_MATRIX_RAINBOW_BEACON`            |Enables `RGB_MATRIX_RAINBOW_BEACON`           |
 |`#define ENABLE_RGB_MATRIX_RAINBOW_PINWHEELS`         |Enables `RGB_MATRIX_RAINBOW_PINWHEELS`        |
+|`#define ENABLE_RGB_MATRIX_FLOWER_BLOOMING`           |Enables `RGB_MATRIX_FLOWER_BLOOMING`          |
 |`#define ENABLE_RGB_MATRIX_RAINDROPS`                 |Enables `RGB_MATRIX_RAINDROPS`                |
 |`#define ENABLE_RGB_MATRIX_JELLYBEAN_RAINDROPS`       |Enables `RGB_MATRIX_JELLYBEAN_RAINDROPS`      |
 |`#define ENABLE_RGB_MATRIX_HUE_BREATHING`             |Enables `RGB_MATRIX_HUE_BREATHING`            |
@ -702,6 +699,10 @@ You can enable a single effect by defining `ENABLE_[EFFECT_NAME]` in your `confi
 |`#define ENABLE_RGB_MATRIX_PIXEL_FRACTAL`             |Enables `RGB_MATRIX_PIXEL_FRACTAL`            |
 |`#define ENABLE_RGB_MATRIX_PIXEL_FLOW`                |Enables `RGB_MATRIX_PIXEL_FLOW`               |
 |`#define ENABLE_RGB_MATRIX_PIXEL_RAIN`                |Enables `RGB_MATRIX_PIXEL_RAIN`               |
+|`#define ENABLE_RGB_MATRIX_STARLIGHT`                 |Enables `RGB_MATRIX_STARLIGHT`                |
+|`#define ENABLE_RGB_MATRIX_STARLIGHT_DUAL_HUE`        |Enables `RGB_MATRIX_STARLIGHT_DUAL_HUE`       |
+|`#define ENABLE_RGB_MATRIX_STARLIGHT_DUAL_SAT`        |Enables `RGB_MATRIX_STARLIGHT_DUAL_SAT`       |
+|`#define ENABLE_RGB_MATRIX_RIVERFLOW`                 |Enables `RGB_MATRIX_RIVERFLOW`                |

 |Framebuffer Defines                                   |Description                                   |
 |------------------------------------------------------|----------------------------------------------|
@ -875,6 +876,7 @@ These are defined in [`color.h`](https://github.com/qmk/qmk_firmware/blob/master
 #define RGB_MATRIX_DEFAULT_MODE RGB_MATRIX_CYCLE_LEFT_RIGHT // Sets the default mode, if none has been set
 #define RGB_MATRIX_DEFAULT_HUE 0 // Sets the default hue value, if none has been set
 #define RGB_MATRIX_DEFAULT_SAT 255 // Sets the default saturation value, if none has been set
+#define RGB_MATRIX_DEFAULT_ON true // Sets the default enabled state, if none has been set
 #define RGB_MATRIX_DEFAULT_VAL RGB_MATRIX_MAXIMUM_BRIGHTNESS // Sets the default brightness value, if none has been set
 #define RGB_MATRIX_DEFAULT_SPD 127 // Sets the default animation speed, if none has been set
 #define RGB_MATRIX_DISABLE_KEYCODES // disables control of rgb matrix by keycodes (must use code functions to control the feature)
--- a/docs/feature_rgblight.md
+++ b/docs/feature_rgblight.md
@ -102,6 +102,7 @@ Your RGB lighting can be configured by placing these `#define`s in your `config.
 |`RGBLIGHT_DEFAULT_SAT`     |`UINT8_MAX` (255)           |The default saturation to use upon clearing the EEPROM                                                                     |
 |`RGBLIGHT_DEFAULT_VAL`     |`RGBLIGHT_LIMIT_VAL`        |The default value (brightness) to use upon clearing the EEPROM                                                             |
 |`RGBLIGHT_DEFAULT_SPD`     |`0`                         |The default speed to use upon clearing the EEPROM                                                                          |
+|`RGBLIGHT_DEFAULT_ON`      |`true`                      |Enable RGB lighting upon clearing the EEPROM                                                                               |

 ## Effects and Animations

@ -370,9 +371,9 @@ If you need to change your RGB lighting in code, for example in a macro to chang

 Example:
 ```c
-sethsv(HSV_WHITE, (LED_TYPE *)&led[0]); // led 0
-sethsv(HSV_RED,   (LED_TYPE *)&led[1]); // led 1
-sethsv(HSV_GREEN, (LED_TYPE *)&led[2]); // led 2
+sethsv(HSV_WHITE, (rgb_led_t *)&led[0]); // led 0
+sethsv(HSV_RED,   (rgb_led_t *)&led[1]); // led 1
+sethsv(HSV_GREEN, (rgb_led_t *)&led[2]); // led 2
 rgblight_set(); // Utility functions do not call rgblight_set() automatically, so they need to be called explicitly.
 ```

@ -524,7 +525,6 @@ By defining `RGBLIGHT_LED_MAP` as in the example below, you can specify the LED
 ```
 <img src="https://user-images.githubusercontent.com/2170248/55743725-08ad7a80-5a6e-11e9-83ed-126a2b0209fc.JPG" alt="simple mapped" width="50%"/>

-```
 ## Clipping Range

 Using the `rgblight_set_clipping_range()` function, you can prepare more buffers than the actual number of LEDs, and output some of the buffers to the LEDs. This is useful if you want the split keyboard to treat left and right LEDs as logically contiguous.
@ -544,11 +544,41 @@ In addition to setting the Clipping Range, you can use `RGBLIGHT_LED_MAP` togeth
 #define RGBLED_NUM 8
 #define RGBLIGHT_LED_MAP { 7, 6, 5, 4, 3, 2, 1, 0 }

-// some soruce
-  rgblight_set_clipping_range(3, 4);
+// some source
+rgblight_set_clipping_range(3, 4);
 ```
 <img src="https://user-images.githubusercontent.com/2170248/55743747-119e4c00-5a6e-11e9-91e5-013203ffae8a.JPG" alt="clip mapped" width="70%"/>

 ## Hardware Modification

 If your keyboard lacks onboard underglow LEDs, you may often be able to solder on an RGB LED strip yourself. You will need to find an unused pin to wire to the data pin of your LED strip. Some keyboards may break out unused pins from the MCU to make soldering easier. The other two pins, VCC and GND, must also be connected to the appropriate power pins.
+
+## Velocikey
+
+Velocikey is a feature that lets you control the speed of lighting effects (like the Rainbow Swirl effect) with the speed of your typing. The faster you type, the faster the lights will go!
+
+### Usage
+For Velocikey to take effect, there are two steps. First, when compiling your keyboard, you'll need to set `VELOCIKEY_ENABLE=yes` in `rules.mk`, e.g.:
+
+```
+MOUSEKEY_ENABLE = no
+STENO_ENABLE = no
+EXTRAKEY_ENABLE = yes
+VELOCIKEY_ENABLE = yes
+```
+
+Then, while using your keyboard, you need to also turn it on with the `VK_TOGG` keycode, which toggles the feature on and off.
+
+The following light effects will all be controlled by Velocikey when it is enabled:
+ - RGB Breathing
+ - RGB Rainbow Mood
+ - RGB Rainbow Swirl
+ - RGB Snake
+ - RGB Knight
+
+Support for LED breathing effects is planned but not available yet.
+
+ As long as Velocikey is enabled, it will control the speed regardless of any other speed setting that your RGB lights are currently on.
+
+ ### Configuration
+ Velocikey doesn't currently support any configuration via keyboard settings. If you want to adjust something like the speed increase or decay rate, you would need to edit `velocikey.c` and adjust the values there to achieve the kinds of speeds that you like.
--- a/docs/feature_split_keyboard.md
+++ b/docs/feature_split_keyboard.md
@ -205,7 +205,7 @@ This sets the pin to be used for serial communication. If you're not using seria
 However, if you are using serial and I<sup>2</sup>C on the board, you will need to set this, and to something other than D0 and D1 (as these are used for I<sup>2</sup>C communication).

 ```c
-#define SELECT_SOFT_SERIAL_SPEED {#}`
+#define SELECT_SOFT_SERIAL_SPEED {#}
 ```

 If you're having issues with serial communication, you can change this value, as it controls the communication speed for serial.  The default is 1, and the possible values are:
@ -298,7 +298,7 @@ This enables transmitting the pointing device status to the master side of the s
 #define SPLIT_HAPTIC_ENABLE
 ```

-This enables triggering of haptic feedback on the slave side of the split keyboard. For DRV2605L this will send the mode, but for solenoids it is expected that the desired mode is already set up on the slave.
+This enables the triggering of haptic feedback on the slave side of the split keyboard. This will send information to the slave side such as the mode, dwell, and whether buzz is enabled.

 ```c
 #define SPLIT_ACTIVITY_ENABLE
--- a/docs/feature_stenography.md
+++ b/docs/feature_stenography.md
@ -104,7 +104,7 @@ After enabling stenography and optionally selecting a protocol, you may also nee

 !> If you had *explicitly* set `VIRSTER_ENABLE = no`, none of the serial stenography protocols (GeminiPR, TX Bolt) will work properly. You are expected to either set it to `yes`, remove the line from your `rules.mk` or send the steno chords yourself in an alternative way using the [provided interceptable hooks](#interfacing-with-the-code).

-In your keymap, create a new layer for Plover, that you can fill in with the [steno keycodes](#keycode-reference) (you will need to include `keymap_steno.h`, see `planck/keymaps/steno/keymap.c` for an example). Remember to create a key to switch to the layer as well as a key for exiting the layer.
+In your keymap, create a new layer for Plover, that you can fill in with the [steno keycodes](#keycode-reference). Remember to create a key to switch to the layer as well as a key for exiting the layer.

 Once you have your keyboard flashed, launch Plover. Click the 'Configure...' button. In the 'Machine' tab, select the Stenotype Machine that corresponds to your desired protocol. Click the 'Configure...' button on this tab and enter the serial port or click 'Scan'. Baud rate is fine at 9600 (although you should be able to set as high as 115200 with no issues). Use the default settings for everything else (Data Bits: 8, Stop Bits: 1, Parity: N, no flow control).

@ -149,8 +149,6 @@ At the end of this scenario given as an example, `chord` would have five bits se

 ## Keycode Reference :id=keycode-reference

-You must include `keymap_steno.h` to your `keymap.c` with `#include "keymap_steno.h"` before you can use these keycodes
-
 > Note: TX Bolt does not support the full set of keys. The TX Bolt implementation in QMK will map the GeminiPR keys to the nearest TX Bolt key so that one key map will work for both.

 |GeminiPR|TX Bolt|Steno Key|
@ -198,7 +196,7 @@ You must include `keymap_steno.h` to your `keymap.c` with `#include "keymap_sten
 |`STN_RES2`||(Reset 2)|
 |`STN_PWR`||(Power)|

-If you do not want to hit two keys with one finger combined keycodes can be used. These are also defined in `keymap_steno.h`, and causes both keys to be reported as pressed or released. To use these keycodes define `STENO_COMBINEDMAP` in your `config.h` file.
+If you do not want to hit two keys with one finger combined keycodes can be used. These cause both keys to be reported as pressed or released. To use these keycodes define `STENO_COMBINEDMAP` in your `config.h` file.

 |Combined key   | Key1   | Key 2    |
 |---------------|--------|----------|
--- a/docs/feature_tri_layer.md
+++ b/docs/feature_tri_layer.md
@ -40,7 +40,7 @@ Eg, if you wanted to set the "Adjust" layer to be layer 5, you'd add this to you
 | `set_tri_layer_lower_layer(layer)`           | Changes the "lower" layer*.                     |
 | `set_tri_layer_upper_layer(layer)`           | Changes the "upper" layer*.                     |
 | `set_tri_layer_adjust_layer(layer)`          | Changes the "adjust" layer*.                    |
-| `set_tri_layer_layers(lower, upper, adjust)` | Stes the "lower", "upper" and "adjust" layers*. |
+| `set_tri_layer_layers(lower, upper, adjust)` | Sets the "lower", "upper" and "adjust" layers*. |
 | `get_tri_layer_lower_layer()`                | Gets the current "lower" layer.                 |
 | `get_tri_layer_upper_layer()`                | Gets the current "upper" layer.                 |
 | `get_tri_layer_adjust_layer()`               | Gets the current "adjust" layer.                |
--- a/docs/feature_unicode.md
+++ b/docs/feature_unicode.md
@ -140,7 +140,7 @@ To set the list of enabled input modes, add the `UNICODE_SELECTED_MODES` define
 ```c
 #define UNICODE_SELECTED_MODES UNICODE_MODE_LINUX
 // or
-#define UNICODE_SELECTED_MODES UNICODE_MODE_MAC, UNICODE_MODE_WINCOMPOSE
+#define UNICODE_SELECTED_MODES UNICODE_MODE_MACOS, UNICODE_MODE_WINCOMPOSE
 ```

 These modes can then be cycled through using the `UC_NEXT` and `UC_PREV` keycodes. You can also switch to any input mode, even if it is not specified in `UNICODE_SELECTED_MODES`, using their respective keycodes.
@ -151,7 +151,7 @@ If your keyboard has working EEPROM, it will remember the last used input mode a

 ### ** macOS **

-**Mode Name:** `UNICODE_MODE_MAC`
+**Mode Name:** `UNICODE_MODE_MACOS`

 macOS has built-in support for Unicode input as its own input source. It supports all possible code points by way of surrogate pairs for code points above `U+FFFF`.

--- a/docs/feature_userspace.md
+++ b/docs/feature_userspace.md
@ -1,5 +1,7 @@
 # Userspace: Sharing Code Between Keymaps

+!> Please note, userspace submissions to the upstream `qmk/qmk_firmware` repository are no longer being accepted. The userspace feature itself remains functional and can be configured locally.
+
 If you use more than one keyboard with a similar keymap, you might see the benefit in being able to share code between them. Create your own folder in `users/` named the same as your keymap (ideally your GitHub username, `<name>`) with the following structure:

 * `/users/<name>/` (added to the path automatically)
--- a/docs/feature_velocikey.md
+++ b/docs/feature_velocikey.md
@ -1,29 +0,0 @@
-# Velocikey
-
-Velocikey is a feature that lets you control the speed of lighting effects (like the Rainbow Swirl effect) with the speed of your typing. The faster you type, the faster the lights will go!
-
-## Usage
-For Velocikey to take effect, there are two steps. First, when compiling your keyboard, you'll need to set `VELOCIKEY_ENABLE=yes` in `rules.mk`, e.g.:
-
-```
-MOUSEKEY_ENABLE = no
-STENO_ENABLE = no
-EXTRAKEY_ENABLE = yes
-VELOCIKEY_ENABLE = yes
-```
-
-Then, while using your keyboard, you need to also turn it on with the `VK_TOGG` keycode, which toggles the feature on and off.
-
-The following light effects will all be controlled by Velocikey when it is enabled:
- - RGB Breathing
- - RGB Rainbow Mood
- - RGB Rainbow Swirl
- - RGB Snake
- - RGB Knight
-
-Support for LED breathing effects is planned but not available yet.
-
- As long as Velocikey is enabled, it will control the speed regardless of any other speed setting that your RGB lights are currently on.
-
- ## Configuration
- Velocikey doesn't currently support any configuration via keyboard settings. If you want to adjust something like the speed increase or decay rate, you would need to edit `velocikey.c` and adjust the values there to achieve the kinds of speeds that you like.
--- a/docs/i2c_driver.md
+++ b/docs/i2c_driver.md
@ -2,6 +2,18 @@

 The I2C Master drivers used in QMK have a set of common functions to allow portability between MCUs.

+## Usage :id=usage
+
+In most cases, the I2C Master driver code is automatically included if you are using a feature or driver which requires it, such as [OLED](feature_oled_driver.md).
+
+However, if you need to use the driver standalone, add the following to your `rules.mk`:
+
+```make
+I2C_DRIVER_REQUIRED = yes
+```
+
+You can then call the I2C API by including `i2c_master.h` in your code.
+
 ## I2C Addressing :id=note-on-i2c-addresses

 All of the addresses expected by this driver should be pushed to the upper 7 bits of the address byte. Setting
--- a/docs/ja/_summary.md
+++ b/docs/ja/_summary.md
@ -112,7 +112,6 @@
    * [分割キーボード](ja/feature_split_keyboard.md)
    * [速記](ja/feature_stenography.md)
    * [感熱式プリンタ](ja/feature_thermal_printer.md)
-    * [Velocikey](ja/feature_velocikey.md)

 * QMK の開発
  * [PR チェックリスト](ja/pr_checklist.md)
--- a/docs/ja/contributing.md
+++ b/docs/ja/contributing.md
@ -110,11 +110,11 @@ enum my_keycodes {

 開発環境をセットアップした場合は、プルリクエストを開く前に以下のコマンドを `qmk_firmware/` フォルダから実行することで、あなたの変更をプレビューすることができます:

-    ./bin/qmk docs
+    qmk docs

 または、Python 3 のみがインストールされている場合:

-    python3 -m http.server 8936
+    python3 -m http.server 8936 --directory docs

 その後、ウェブブラウザで、`http://localhost:8936/` を表示します。

--- a/docs/ja/feature_velocikey.md
+++ b/docs/ja/feature_velocikey.md
@ -1,34 +0,0 @@
-# Velocikey
-
-<!---
-  original document: 0.8.147:docs/feature_velocikey.md
-  git diff 0.8.147 HEAD -- docs/feature_velocikey.md | cat
-->
-
-Velocikey は入力の速度を使って(レインボー渦巻効果のような)ライト効果の速度を制御できる機能です。速く入力すればするほどライトが速くなります！
-
-## 使用法
-Velocikey を使うためには、2つのステップがあります。最初に、キーボードをコンパイルする時に、`rules.mk` に `VELOCIKEY_ENABLE=yes` を設定する必要があります。例えば:
-
-```
-MOUSEKEY_ENABLE = no
-STENO_ENABLE = no
-EXTRAKEY_ENABLE = yes
-VELOCIKEY_ENABLE = yes
-```
-
-次に、キーボードの使用中に、VLK_TOG キーコードを使って Velocikey を有効にする必要もあります。これは機能をオンおよびオフにします。
-
-以下の全てのライト効果が、Velocikey を有効にすることで制御されます:
- RGB 明滅動作
- RGB レインボームード
- RGB レインボー渦巻
- RGB スネーク
- RGB ナイト
-
-LED 明滅動作の効果のサポートは計画されていますがまだ利用できません。
-
-Velocikey が有効になっている限り、現在オンになっている RGB ライトの他の全ての速度設定に関係なく、速度が制御されます。
-
-## 設定
-Velocikey は現在のところキーボード設定を介したどのような設定もサポートしません。速度の増加あるいは減少率などを調整したい場合は、`velocikey.c` を編集し、そこで値を調整して、好みの速度を実現する必要があります。
--- a/docs/ja/tap_hold.md
+++ b/docs/ja/tap_hold.md
@ -160,7 +160,7 @@ bool get_retro_tapping(uint16_t keycode, keyrecord_t *record) {

 「キー別」の関数全てにキーレコードを含んでいることに気付いたかもしれません。そしてなぜそうしたのか不思議に思っているかもしれません。

-まぁ、それは単純に本当にカスタマイズのためです。ただし、具体的には、それはキーボードの配線方法によって異なります。例えば、各行が実際にキーボードのマトリックスの1行を使っている場合、キーコード全体をチェックする代わりに、`if (record->event.row == 3)` を使うほうが簡単かもしれません。これは、ホームキー行でタップホールドタイプのキーを使っている人にとって特に便利です。そのため、通常のタイピングを妨げないように微調整することができるのではないでしょうか。
+まぁ、それは単純に本当にカスタマイズのためです。ただし、具体的には、それはキーボードの配線方法によって異なります。例えば、各行が実際にキーボードのマトリックスの1行を使っている場合、キーコード全体をチェックする代わりに、`if (record->event.key.row == 3)` を使うほうが簡単かもしれません。これは、ホームキー行でタップホールドタイプのキーを使っている人にとって特に便利です。そのため、通常のタイピングを妨げないように微調整することができるのではないでしょうか。

 ## `*_kb` や `*_user` 関数が無いのはなぜですか？

--- a/docs/newbs_building_firmware_workflow.md
+++ b/docs/newbs_building_firmware_workflow.md
@ -143,13 +143,13 @@ Replace `username.json` with the JSON file name that was downloaded from [QMK Co

 If you have completed all steps correctly, the folder `qmk_keymap/` will contain the following files:
 ```
-|-- .github
-|   `-- workflows
-|       `-- build.yml
-|-- rules.mk
-|-- config.h
-|-- source.c
-|-- username.json
+├── .github
+│   └── workflows
+│       └── build.yml
+├── rules.mk
+├── config.h
+├── source.c
+└── username.json
 ```

 To commit and push them into GitHub, run the following commands (replacing `gh-username` with your GitHub user name):
--- a/docs/newbs_external_userspace.md
+++ b/docs/newbs_external_userspace.md
@ -0,0 +1,96 @@
+# External QMK Userspace
+
+QMK Firmware now officially supports storing user keymaps outside of the normal QMK Firmware repository, allowing users to maintain their own keymaps without having to fork, modify, and maintain a copy of QMK Firmware themselves.
+
+External Userspace mirrors the structure of the main QMK Firmware repository, but only contains the keymaps that you wish to build. You can still use `keyboards/<my keyboard>/keymaps/<my keymap>` to store your keymaps, or you can use the `layouts/<my layout>/<my keymap>` system as before -- they're just stored external to QMK Firmware.
+
+The build system will still honor the use of `users/<my keymap>` if you rely on the traditional QMK Firmware [userspace feature](feature_userspace.md) -- it's now supported externally too, using the same location inside the External Userspace directory.
+
+Additionally, there is first-class support for using GitHub Actions to build your keymaps, allowing you to automatically compile your keymaps whenever you push changes to your External Userspace repository.
+
+!> External Userspace is new functionality and may have issues. Tighter integration with the `qmk` command will occur over time.
+
+?> Historical keymap.json and GitHub-based firmware build instructions can be found [here](newbs_building_firmware_workflow.md). This document supersedes those instructions, but they should still function correctly.
+
+## Setting up QMK Locally
+
+If you wish to build on your local machine, you will need to set up QMK locally. This is a one-time process, and is documented in the [newbs setup guide](https://docs.qmk.fm/#/newbs).
+
+!> If you wish to use any QMK CLI commands related to manipulating External Userspace definitions, you will currently need a copy of QMK Firmware as well.
+
+!> Building locally has a much shorter turnaround time than waiting for GitHub Actions to complete.
+
+## External Userspace Repository Setup (forked on GitHub)
+
+A basic skeleton External Userspace repository can be found [here](https://github.com/qmk/qmk_userspace). If you wish to keep your keymaps on GitHub (strongly recommended!), you can fork the repository and use it as a base:
+
+![Userspace Fork](https://i.imgur.com/hcegguh.png)
+
+Going ahead with your fork will copy it to your account, at which point you can clone it to your local machine and begin adding your keymaps:
+
+![Userspace Clone](https://i.imgur.com/CWYmsk8.png)
+
+```sh
+cd $HOME
+git clone https://github.com/{myusername}/qmk_userspace.git
+qmk config user.overlay_dir="$(realpath qmk_userspace)"
+```
+
+## External Userspace Setup (locally stored only)
+
+If you don't want to use GitHub and prefer to keep everything local, you can clone a copy of the default External Userspace locally instead:
+
+```sh
+cd $HOME
+git clone https://github.com/qmk/qmk_userspace.git
+qmk config user.overlay_dir="$(realpath qmk_userspace)"
+```
+
+## Adding a Keymap
+
+_These instructions assume you have already set up QMK locally, and have a copy of the QMK Firmware repository on your machine._
+
+Keymaps within External Userspace are defined in the same way as they are in the main QMK repository. You can either use the `qmk new-keymap` command to create a new keymap, or manually create a new directory in the `keyboards` directory.
+
+Alternatively, you can use the `layouts` directory to store your keymaps, using the same layout system as the main QMK repository -- if you choose to do so you'll want to use the path `layouts/<layout name>/<keymap name>/keymap.*` to store your keymap files, where `layout name` matches an existing layout in QMK, such as `tkl_ansi`.
+
+After creating your new keymap, building the keymap matches normal QMK usage:
+
+```sh
+qmk compile -kb <keyboard> -km <keymap>
+```
+
+!> The `qmk config user.overlay_dir=...` command must have been run when cloning the External Userspace repository for this to work correctly.
+
+## Adding the keymap to External Userspace build targets
+
+Once you have created your keymap, if you want to use GitHub Actions to build your firmware, you will need to add it to the External Userspace build targets. This is done using the `qmk userspace-add` command:
+
+```sh
+# for a keyboard/keymap combo:
+qmk userspace-add -kb <keyboard> -km <keymap>
+# or, for a json-based keymap (if kept "loose"):
+qmk userspace-add <relative/path/to/my/keymap.json>
+```
+
+This updates the `qmk.json` file in the root of your External Userspace directory. If you're using a git repository to store your keymaps, now is a great time to commit and push to your own fork.
+
+## Compiling External Userspace build targets
+
+Once you have added your keymaps to the External Userspace build targets, you can compile all of them at once using the `qmk userspace-compile` command:
+
+```sh
+qmk userspace-compile
+```
+
+All firmware builds you've added to the External Userspace build targets will be built, and the resulting firmware files will be placed in the root of your External Userspace directory.
+
+## Using GitHub Actions
+
+GitHub Actions can be used to automatically build your keymaps whenever you push changes to your External Userspace repository. If you have set up your list of build targets, this is as simple as enabling workflows in the GitHub repository settings:
+
+![Repo Settings](https://i.imgur.com/EVkxOt1.png)
+
+Any push will result in compilation of all configured builds, and once completed a new release containing the newly-minted firmware files will be created on GitHub, which you can subsequently download and flash to your keyboard:
+
+![Releases](https://i.imgur.com/zmwOL5P.png)
--- a/docs/pr_checklist.md
+++ b/docs/pr_checklist.md
@ -39,7 +39,7 @@ If there are any inconsistencies with these recommendations, you're best off [cr

 ## Keymap PRs

-Note that personal keymap submissions will no longer be accepted. This section applies to manufacturer-supported keymaps.
+!> Note that personal keymap submissions will no longer be accepted. This section applies to manufacturer-supported keymaps.

 - `#include QMK_KEYBOARD_H` preferred to including specific board files
 - prefer layer `enum`s to `#define`s
@ -103,7 +103,7 @@ https://github.com/qmk/qmk_firmware/pulls?q=is%3Apr+is%3Aclosed+label%3Akeyboard
 - keyboard `config.h`
    - no `#define DESCRIPTION`
    - no Magic Key Options, MIDI Options or HD44780 configuration
-    - user preference configurable `#define`s need to be moved to keymap `config.h`
+    - user preference configurable `#define`s should not be placed at the keyboard level
    - default values should not be redefined, such as `DEBOUNCE`, RGB related settings, etc.
      - feature specific documentation contains most default values
      - `grep` or alternative tool can be used to search for default values in core directories (e.g. `grep -r "define DEBOUNCE" quantum`)
@ -117,8 +117,7 @@ https://github.com/qmk/qmk_firmware/pulls?q=is%3Apr+is%3Aclosed+label%3Akeyboard
        - mirroring existing functionality of a commercial board (like custom keycodes and special animations etc.) should be handled through non-`default` keymaps
    - Vial-related files or changes will not be accepted, as they are not used by QMK firmware (no Vial-specific core code has been submitted or merged)
 - `<keyboard>.c`
-    - empty `xxxx_xxxx_kb()` or other weak-defined default implemented functions removed
-    - empty `xxxx_xxxx_user()` or other user-level functions are disallowed at the keyboard level and must be moved to keymaps
+    - empty `xxxx_xxxx_kb()`, `xxxx_xxxx_user()`, or other weak-defined default implemented functions removed
    - commented-out functions removed too
    - `matrix_init_board()` etc. migrated to `keyboard_pre_init_kb()`, see: [keyboard_pre_init*](custom_quantum_functions.md?id=keyboard_pre_init_-function-documentation)
    - prefer `CUSTOM_MATRIX = lite` if custom matrix used, allows for standard debounce, see [custom matrix 'lite'](custom_matrix.md?id=lite)
@ -138,7 +137,7 @@ https://github.com/qmk/qmk_firmware/pulls?q=is%3Apr+is%3Aclosed+label%3Akeyboard
    - standard layouts preferred in these keymaps, if possible
    - should use [encoder map feature](https://docs.qmk.fm/#/feature_encoders?id=encoder-map), rather than `encoder_update_user()`
    - default keymap should not enable VIA -- the VIA integration documentation requires a keymap called `via`
- submitters can have a personal (or bells-and-whistles) keymap showcasing capabilities in the same PR but it shouldn't be embedded in the 'default' keymap
+- submitters can add an example (or bells-and-whistles) keymap showcasing capabilities in the same PR but it shouldn't be embedded in the 'default' keymap
 - submitters can also have a "manufacturer-matching" keymap that mirrors existing functionality of the commercial product, if porting an existing board
 - Do not include VIA json files in the PR. These do not belong in the QMK repository as they are not used by QMK firmware -- they belong in the [VIA Keyboard Repo](https://github.com/the-via/keyboards)
 - Do not include KLE json files in the PR. These have no use within QMK.
--- a/docs/quantum_painter.md
+++ b/docs/quantum_painter.md
@ -13,22 +13,24 @@ QUANTUM_PAINTER_DRIVERS += ......

 You will also likely need to select an appropriate driver in `rules.mk`, which is listed below.

-!> Quantum Painter is not currently integrated with system-level operations such as disabling displays after a configurable timeout, or when the keyboard goes into suspend. Users will need to handle this manually at the current time.
+!> Quantum Painter is not currently integrated with system-level operations such as when the keyboard goes into suspend. Users will need to handle this manually at the current time.

 The QMK CLI can be used to convert from normal images such as PNG files or animated GIFs, as well as fonts from TTF files.

 Supported devices:

-| Display Panel  | Panel Type         | Size             | Comms Transport | Driver                                      |
-|----------------|--------------------|------------------|-----------------|---------------------------------------------|
-| GC9A01         | RGB LCD (circular) | 240x240          | SPI + D/C + RST | `QUANTUM_PAINTER_DRIVERS += gc9a01_spi`     |
-| ILI9163        | RGB LCD            | 128x128          | SPI + D/C + RST | `QUANTUM_PAINTER_DRIVERS += ili9163_spi`    |
-| ILI9341        | RGB LCD            | 240x320          | SPI + D/C + RST | `QUANTUM_PAINTER_DRIVERS += ili9341_spi`    |
-| ILI9488        | RGB LCD            | 320x480          | SPI + D/C + RST | `QUANTUM_PAINTER_DRIVERS += ili9488_spi`    |
-| SSD1351        | RGB OLED           | 128x128          | SPI + D/C + RST | `QUANTUM_PAINTER_DRIVERS += ssd1351_spi`    |
-| ST7735         | RGB LCD            | 132x162, 80x160  | SPI + D/C + RST | `QUANTUM_PAINTER_DRIVERS += st7735_spi`     |
-| ST7789         | RGB LCD            | 240x320, 240x240 | SPI + D/C + RST | `QUANTUM_PAINTER_DRIVERS += st7789_spi`     |
-| RGB565 Surface | Virtual            | User-defined     | None            | `QUANTUM_PAINTER_DRIVERS += rgb565_surface` |
+| Display Panel | Panel Type         | Size             | Comms Transport | Driver                                   |
+|---------------|--------------------|------------------|-----------------|------------------------------------------|
+| GC9A01        | RGB LCD (circular) | 240x240          | SPI + D/C + RST | `QUANTUM_PAINTER_DRIVERS += gc9a01_spi`  |
+| ILI9163       | RGB LCD            | 128x128          | SPI + D/C + RST | `QUANTUM_PAINTER_DRIVERS += ili9163_spi` |
+| ILI9341       | RGB LCD            | 240x320          | SPI + D/C + RST | `QUANTUM_PAINTER_DRIVERS += ili9341_spi` |
+| ILI9488       | RGB LCD            | 320x480          | SPI + D/C + RST | `QUANTUM_PAINTER_DRIVERS += ili9488_spi` |
+| SSD1351       | RGB OLED           | 128x128          | SPI + D/C + RST | `QUANTUM_PAINTER_DRIVERS += ssd1351_spi` |
+| ST7735        | RGB LCD            | 132x162, 80x160  | SPI + D/C + RST | `QUANTUM_PAINTER_DRIVERS += st7735_spi`  |
+| ST7789        | RGB LCD            | 240x320, 240x240 | SPI + D/C + RST | `QUANTUM_PAINTER_DRIVERS += st7789_spi`  |
+| SH1106 (SPI)  | Monochrome OLED    | 128x64           | SPI + D/C + RST | `QUANTUM_PAINTER_DRIVERS += sh1106_spi`  |
+| SH1106 (I2C)  | Monochrome OLED    | 128x64           | I2C             | `QUANTUM_PAINTER_DRIVERS += sh1106_i2c`  |
+| Surface       | Virtual            | User-defined     | None            | `QUANTUM_PAINTER_DRIVERS += surface`     |

 ## Quantum Painter Configuration :id=quantum-painter-config

@ -188,7 +190,8 @@ Writing /home/qmk/qmk_firmware/keyboards/my_keeb/generated/noto11.qff.c...

 <!-- tabs:start -->

-### ** Common: Standard TFT (SPI + D/C + RST) **
+
+### ** LCD **

 Most TFT display panels use a 5-pin interface -- SPI SCK, SPI MOSI, SPI CS, D/C, and RST pins.

@ -302,32 +305,6 @@ The maximum number of displays can be configured by changing the following in yo

 Native color format rgb888 is compatible with ILI9488

-#### ** SSD1351 **
-
-Enabling support for the SSD1351 in Quantum Painter is done by adding the following to `rules.mk`:
-
-```make
-QUANTUM_PAINTER_ENABLE = yes
-QUANTUM_PAINTER_DRIVERS += ssd1351_spi
-```
-
-Creating a SSD1351 device in firmware can then be done with the following API:
-
-```c
-painter_device_t qp_ssd1351_make_spi_device(uint16_t panel_width, uint16_t panel_height, pin_t chip_select_pin, pin_t dc_pin, pin_t reset_pin, uint16_t spi_divisor, int spi_mode);
-```
-
-The device handle returned from the `qp_ssd1351_make_spi_device` function can be used to perform all other drawing operations.
-
-The maximum number of displays can be configured by changing the following in your `config.h` (default is 1):
-
-```c
-// 3 displays:
-#define SSD1351_NUM_DEVICES 3
-```
-
-Native color format rgb565 is compatible with SSD1351
-
 #### ** ST7735 **

 Enabling support for the ST7735 in Quantum Painter is done by adding the following to `rules.mk`:
@ -386,65 +363,142 @@ Native color format rgb565 is compatible with ST7789

 <!-- tabs:end -->

-### ** Common: Surfaces **
+### ** OLED **

-Quantum Painter has surface drivers which are able to target a buffer in RAM. In general, surfaces keep track of the "dirty" region -- the area that has been drawn to since the last flush -- so that when transferring to the display they can transfer the minimal amount of data to achieve the end result.
+OLED displays tend to use 5-pin SPI when at larger resolutions, or when using color -- SPI SCK, SPI MOSI, SPI CS, D/C, and RST pins. Smaller OLEDs may use I2C instead.

-!> These generally require significant amounts of RAM, so at large sizes and/or higher bit depths, they may not be usable on all MCUs.
+When using these displays, either `spi_master` or `i2c_master` must already be correctly configured for both the platform and panel you're building for.
+
+For SPI, the pin assignments for SPI CS, D/C, and RST are specified during device construction -- for I2C the panel's address is specified instead.

 <!-- tabs:start -->

-#### ** RGB565 Surface **
+#### ** SSD1351 **

-Enabling support for RGB565 surfaces in Quantum Painter is done by adding the following to `rules.mk`:
+Enabling support for the SSD1351 in Quantum Painter is done by adding the following to `rules.mk`:

 ```make
 QUANTUM_PAINTER_ENABLE = yes
-QUANTUM_PAINTER_DRIVERS += rgb565_surface
+QUANTUM_PAINTER_DRIVERS += ssd1351_spi
 ```

-Creating a RGB565 surface in firmware can then be done with the following API:
+Creating a SSD1351 device in firmware can then be done with the following API:

 ```c
-painter_device_t qp_rgb565_make_surface(uint16_t panel_width, uint16_t panel_height, void *buffer);
+painter_device_t qp_ssd1351_make_spi_device(uint16_t panel_width, uint16_t panel_height, pin_t chip_select_pin, pin_t dc_pin, pin_t reset_pin, uint16_t spi_divisor, int spi_mode);
 ```

-The `buffer` is a user-supplied area of memory, and is assumed to be of the size `sizeof(uint16_t) * panel_width * panel_height`.
+The device handle returned from the `qp_ssd1351_make_spi_device` function can be used to perform all other drawing operations.

-The device handle returned from the `qp_rgb565_make_surface` function can be used to perform all other drawing operations.
+The maximum number of displays can be configured by changing the following in your `config.h` (default is 1):
+
+```c
+// 3 displays:
+#define SSD1351_NUM_DEVICES 3
+```
+
+Native color format rgb565 is compatible with SSD1351
+
+#### ** SH1106 **
+
+Enabling support for the SH1106 in Quantum Painter is done by adding the following to `rules.mk`:
+
+```make
+QUANTUM_PAINTER_ENABLE = yes
+# For SPI:
+QUANTUM_PAINTER_DRIVERS += sh1106_spi
+# For I2C:
+QUANTUM_PAINTER_DRIVERS += sh1106_i2c
+```
+
+Creating a SH1106 device in firmware can then be done with the following APIs:
+
+```c
+// SPI-based SH1106:
+painter_device_t qp_sh1106_make_spi_device(uint16_t panel_width, uint16_t panel_height, pin_t chip_select_pin, pin_t dc_pin, pin_t reset_pin, uint16_t spi_divisor, int spi_mode);
+// I2C-based SH1106:
+painter_device_t qp_sh1106_make_i2c_device(uint16_t panel_width, uint16_t panel_height, uint8_t i2c_address);
+```
+
+The device handle returned from the `qp_sh1106_make_???_device` function can be used to perform all other drawing operations.
+
+The maximum number of displays of each type can be configured by changing the following in your `config.h` (default is 1):
+
+```c
+// 3 SPI displays:
+#define SH1106_NUM_SPI_DEVICES 3
+// 3 I2C displays:
+#define SH1106_NUM_I2C_DEVICES 3
+```
+
+Native color format mono2 is compatible with SH1106
+
+<!-- tabs:end -->
+
+### ** Surface **
+
+Quantum Painter has a surface driver which is able to target a buffer in RAM. In general, surfaces keep track of the "dirty" region -- the area that has been drawn to since the last flush -- so that when transferring to the display they can transfer the minimal amount of data to achieve the end result.
+
+!> These generally require significant amounts of RAM, so at large sizes and/or higher bit depths, they may not be usable on all MCUs.
+
+Enabling support for surfaces in Quantum Painter is done by adding the following to `rules.mk`:
+
+```make
+QUANTUM_PAINTER_ENABLE = yes
+QUANTUM_PAINTER_DRIVERS += surface
+```
+
+Creating a surface in firmware can then be done with the following APIs:
+
+```c
+// 16bpp RGB565 surface:
+painter_device_t qp_make_rgb565_surface(uint16_t panel_width, uint16_t panel_height, void *buffer);
+// 1bpp monochrome surface:
+painter_device_t qp_make_mono1bpp_surface(uint16_t panel_width, uint16_t panel_height, void *buffer);
+```
+
+The `buffer` is a user-supplied area of memory, which can be statically allocated using `SURFACE_REQUIRED_BUFFER_BYTE_SIZE`:
+
+```c
+// Buffer required for a 240x80 16bpp surface:
+uint8_t framebuffer[SURFACE_REQUIRED_BUFFER_BYTE_SIZE(240, 80, 16)];
+```
+
+The device handle returned from the `qp_make_?????_surface` function can be used to perform all other drawing operations.

 Example:

 ```c
 static painter_device_t my_surface;
-static uint16_t my_framebuffer[320 * 240]; // Allocate a buffer for a 320x240 RGB565 display
+static uint8_t my_framebuffer[SURFACE_REQUIRED_BUFFER_BYTE_SIZE(240, 80, 16)]; // Allocate a buffer for a 16bpp 240x80 RGB565 display
 void keyboard_post_init_kb(void) {
-    my_surface = qp_rgb565_make_surface(320, 240, my_framebuffer);
+    my_surface = qp_rgb565_make_surface(240, 80, my_framebuffer);
    qp_init(my_surface, QP_ROTATION_0);
+    keyboard_post_init_user();
 }
 ```

-The maximum number of RGB565 surfaces can be configured by changing the following in your `config.h` (default is 1):
+The maximum number of surfaces can be configured by changing the following in your `config.h` (default is 1):

 ```c
 // 3 surfaces:
-#define RGB565_SURFACE_NUM_DEVICES 3
+#define SURFACE_NUM_DEVICES 3
 ```

-To transfer the contents of the RGB565 surface to another display, the following API can be invoked:
+To transfer the contents of the surface to another display of the same pixel format, the following API can be invoked:

 ```c
-bool qp_rgb565_surface_draw(painter_device_t surface, painter_device_t display, uint16_t x, uint16_t y);
+bool qp_surface_draw(painter_device_t surface, painter_device_t display, uint16_t x, uint16_t y, bool entire_surface);
 ```

-The `surface` is the surface to copy out from. The `display` is the target display to draw into. `x` and `y` are the target location to draw the surface pixel data. Under normal circumstances, the location should be consistent, as the dirty region is calculated with respect to the `x` and `y` coordinates -- changing those will result in partial, overlapping draws.
+The `surface` is the surface to copy out from. The `display` is the target display to draw into. `x` and `y` are the target location to draw the surface pixel data. Under normal circumstances, the location should be consistent, as the dirty region is calculated with respect to the `x` and `y` coordinates -- changing those will result in partial, overlapping draws. `entire_surface` whether the entire surface should be drawn, instead of just the dirty region.
+
+!> The surface and display panel must have the same native pixel format.

 ?> Calling `qp_flush()` on the surface resets its dirty region. Copying the surface contents to the display also automatically resets the dirty region.

 <!-- tabs:end -->

-<!-- tabs:end -->
-
 ## Quantum Painter Drawing API :id=quantum-painter-api

 All APIs require a `painter_device_t` object as their first parameter -- this object comes from the specific device initialisation, and instructions on creating it can be found in each driver's respective section.
@ -857,13 +911,52 @@ void keyboard_post_init_kb(void) {

 <!-- tabs:start -->

-#### ** Get Geometry **
+#### ** Gettters **
+
+These functions allow external code to retrieve the current width, height, rotation, and drawing offsets.
+
+<!-- tabs:start -->
+
+#### ** Width **
+
+```c
+uint16_t qp_get_width(painter_device_t device);
+```
+
+#### ** Height **
+
+```c
+uint16_t qp_get_height(painter_device_t device);
+```
+
+#### ** Rotation **
+
+```c
+painter_rotation_t qp_get_rotation(painter_device_t device);
+```
+
+#### ** Offset X **
+
+```c
+uint16_t qp_get_offset_x(painter_device_t device);
+```
+
+#### ** Offset Y **
+
+```c
+uint16_t qp_get_offset_y(painter_device_t device);
+```
+
+##### ** Everything **
+
+Convenience function to call all the previous ones at once.
+Note: You can pass `NULL` for the values you are not interested in.

 ```c
 void qp_get_geometry(painter_device_t device, uint16_t *width, uint16_t *height, painter_rotation_t *rotation, uint16_t *offset_x, uint16_t *offset_y);
 ```

-The `qp_get_geometry` function allows external code to retrieve the current width, height, rotation, and drawing offsets.
+<!-- tabs:end -->

 #### ** Set Viewport Offsets **

--- a/docs/quantum_painter_lvgl.md
+++ b/docs/quantum_painter_lvgl.md
@ -53,3 +53,11 @@ The `qp_lvgl_detach` function stops the internal LVGL ticks and releases resourc
 ## Enabling/Disabling LVGL features :id=lvgl-configuring

 You can overwrite LVGL specific features in your `lv_conf.h` file.
+
+## Changing the LVGL task frequency
+
+When LVGL is running, your keyboard's responsiveness may decrease, causing missing keystrokes or encoder rotations, especially during the animation of dynamically-generated content. This occurs because LVGL operates as a scheduled task with a default task rate of five milliseconds. While a fast task rate is advantageous when LVGL is responsible for detecting and processing inputs, it can lead to excessive recalculations of displayed content, which may slow down QMK's matrix scanning. If you rely on QMK instead of LVGL for processing inputs, it can be beneficial to increase the time between calls to the LVGL task handler to better match your preferred display update rate. To do this, add this to your `config.h`:
+
+```c
+#define QP_LVGL_TASK_PERIOD 40
+```
--- a/docs/reference_info_json.md
+++ b/docs/reference_info_json.md
@ -60,6 +60,13 @@ You can create `info.json` files at every level under `qmk_firmware/keyboards/<k
    }
    ```
 * `qmk`
+    * `locking`
+        * `enabled`
+            * Enable locking switch support.
+            * Default: `false`
+        * `resync`
+            * Keep switch state consistent with keyboard LED state.
+            * Default: `false`
    * `tap_capslock_delay`
        * The delay between keydown and keyup for Caps Lock tap events in milliseconds.
        * Default: `80` (80 ms)
@ -88,7 +95,7 @@ You can create `info.json` files at every level under `qmk_firmware/keyboards/<k

 ## APA102 :id=apa102

-Configures the APA102 driver.
+Configures the [APA102](apa102_driver.md) driver.

 * `apa102`
    * `clock_pin` (Required)
@ -127,6 +134,16 @@ Configures the [Backlight](feature_backlight.md) feature.
    * `breathing_period`
        * The length of one backlight breathing cycle in seconds.
        * Default: `6` (6 seconds)
+    * `default`
+        * `on`
+            * The default backlight enabled state.
+            * Default: `true`
+        * `breathing`
+            * The default backlight breathing state.
+            * Default: `false`
+        * `brightness`
+            * The default brightness level.
+            * Default: `max_brightness`
    * `driver`
        * The driver to use. Must be one of `custom`, `pwm`, `software`, `timer`.
        * Default: `"pwm"`
@ -194,6 +211,20 @@ Configures the [Combo](feature_combo.md) feature.
        * The amount of time to recognize a combo in milliseconds.
        * Default: `50` (50 ms)

+## DIP Switches :id=dip-switch
+
+Configures the [DIP Switches](feature_dip_switch.md) feature.
+
+* `dip_switch`
+    * `enabled`
+        * Enable the DIP Switches feature.
+        * Default: `false`
+    * `pins`
+        * A list of GPIO pins connected to the MCU.
+    * `matrix_grid`
+        * A list of matrix locations in the key matrix.
+        * Example: `[ [0,6], [1,6], [2,6] ]`
+
 ## EEPROM :id=eeprom

 Configures the [EEPROM](eeprom_driver.md) driver.
@ -202,6 +233,13 @@ Configures the [EEPROM](eeprom_driver.md) driver.
    * `driver`
        * The EEPROM backend to use. Must be one of `custom`, `i2c`, `legacy_stm32_flash`, `spi`, `transient`, `vendor`, `wear_leveling`.
        * Default: `"vendor"`
+    * `wear_leveling`
+        * `driver`
+            * The driver to use. Must be one of `embedded_flash`, `legacy`, `rp2040_flash`, `spi_flash`, `custom`.
+        * `backing_size`
+            * Number of bytes used by the wear-leveling algorithm for its underlying storage, and needs to be a multiple of the logical size.
+        * `logical_size`
+            * Number of bytes “exposed” to the rest of QMK and denotes the size of the usable EEPROM.

 ## Encoder :id=encoder

@ -286,6 +324,8 @@ The ISO enter key is represented by a 1.25u×2uh key. Renderers which utilize in
                * `w`
                    * The width of the key, in key units.
                    * Default: `1` (1u)
+                * `encoder`
+                    * The index of an encoder this key should be linked to
                * Example: `{"label": "Shift", "matrix": [4, 0], "x": 0, "y": 4.25, "w": 2.25}`

 ## Leader Key :id=leader-key
@ -313,7 +353,7 @@ Configures the [LED Matrix](feature_led_matrix.md) feature.
        * Example:
        ```json
        {
-            "alpha_mods": true,
+            "alphas_mods": true,
            "breathing": true,
            "cycle_left_right": false
        }
@ -321,8 +361,21 @@ Configures the [LED Matrix](feature_led_matrix.md) feature.
    * `center_point`
        * The centroid (geometric center) of the LEDs. Used for certain effects.
        * Default: `[112, 32]`
+    * `default`
+        * `animation`
+            * The default effect. Must be one of `led_matrix.animations`
+            * Default: `"solid"`
+        * `on`
+            * The default enabled state.
+            * Default: `true`
+        * `val`
+            * The default brightness level.
+            * Default: `max_brightness`
+        * `speed`
+            * The default animation speed.
+            * Default: `128`
    * `driver` (Required)
-        * The driver to use. Must be one of `ckled2001`, `custom`, `is31fl3731`, `is31fl3742a`, `is31fl3743a`, `is31fl3745`, `is31fl3746a`.
+        * The driver to use. Must be one of `custom`, `is31fl3218`, `is31fl3731`, `is31fl3733`, `is31fl3736`, `is31fl3737`, `is31fl3741`, `is31fl3742a`, `is31fl3743a`, `is31fl3745`, `is31fl3746a`, `snled27351`.
    * `layout` (Required)
        * List of LED configuration dictionaries. Each dictionary contains:
            * `flags` (Required)
@ -335,9 +388,21 @@ Configures the [LED Matrix](feature_led_matrix.md) feature.
                * The key matrix position associated with the LED.
                * Example: `[0, 2]`
            * Example: `{"matrix": [2, 1], "x": 20, "y": 48, "flags": 2}`
+    * `led_flush_limit`
+        * Limits in milliseconds how frequently an animation will update the LEDs.
+        * Default: `16`
+    * `led_process_limit`
+        * Limits the number of LEDs to process in an animation per task run (increases keyboard responsiveness).
+        * Default: `led_count / 5`
    * `max_brightness`
        * The maximum value which brightness is scaled to, from 0 to 255.
        * Default: `255`
+    * `react_on_keyup`
+        * Animations react to keyup instead of keydown.
+        * Default: `false`
+    * `sleep`
+        * Turn off the LEDs when the host goes to sleep.
+        * Default: `false`
    * `speed_steps`
        * The number of speed adjustment steps.
        * Default: `16`
@ -466,6 +531,25 @@ Configures the [RGB Lighting](feature_rgblight.md) feature.
    * `brightness_steps`
        * The number of brightness adjustment steps.
        * Default: `17`
+    * `default`
+        * `animation`
+            * The default effect. Must be one of `rgblight.animations`
+            * Default: `"static_light"`
+        * `on`
+            * The default enabled state.
+            * Default: `true`
+        * `hue`
+            * The default hue value.
+            * Default: `0`
+        * `sat`
+            * The default saturation value.
+            * Default: `255`
+        * `val`
+            * The default brightness level.
+            * Default: `max_brightness`
+        * `speed`
+            * The default animation speed.
+            * Default: `0`
    * `driver`
        * The driver to use. Must be one of `apa102`, `custom`, `ws2812`.
        * Default: `"ws2812"`
@ -514,7 +598,7 @@ Configures the [RGB Matrix](feature_rgb_matrix.md) feature.
        * Example:
        ```json
        {
-            "alpha_mods": true,
+            "alphas_mods": true,
            "breathing": true,
            "cycle_left_right": false
        }
@ -522,8 +606,27 @@ Configures the [RGB Matrix](feature_rgb_matrix.md) feature.
    * `center_point`
        * The centroid (geometric center) of the LEDs. Used for certain effects.
        * Default: `[112, 32]`
+    * `default`
+        * `animation`
+            * The default effect. Must be one of `rgb_matrix.animations`
+            * Default: `"solid_color"`
+        * `on`
+            * The default enabled state.
+            * Default: `true`
+        * `hue`
+            * The default hue value.
+            * Default: `0`
+        * `sat`
+            * The default saturation value.
+            * Default: `255`
+        * `val`
+            * The default brightness level.
+            * Default: `max_brightness`
+        * `speed`
+            * The default animation speed.
+            * Default: `128`
    * `driver` (Required)
-        * The driver to use. Must be one of `aw20216`, `ckled2001`, `custom`, `is31fl3731`, `is31fl3733`, `is31fl3736`, `is31fl3737`, `is31fl3741`, `is31fl3742a`, `is31fl3743a`, `is31fl3745`, `is31fl3746a`, `ws2812`.
+        * The driver to use. Must be one of `aw20216s`, `custom`, `is31fl3218`, `is31fl3731`, `is31fl3733`, `is31fl3736`, `is31fl3737`, `is31fl3741`, `is31fl3742a`, `is31fl3743a`, `is31fl3745`, `is31fl3746a`, `snled27351`, `ws2812`.
    * `hue_steps`
        * The number of hue adjustment steps.
        * Default: `8`
@ -539,12 +642,24 @@ Configures the [RGB Matrix](feature_rgb_matrix.md) feature.
                * The key matrix position associated with the LED.
                * Example: `[0, 2]`
            * Example: `{"matrix": [2, 1], "x": 20, "y": 48, "flags": 2}`
+    * `led_flush_limit`
+        * Limits in milliseconds how frequently an animation will update the LEDs.
+        * Default: `16`
+    * `led_process_limit`
+        * Limits the number of LEDs to process in an animation per task run (increases keyboard responsiveness).
+        * Default: `led_count / 5`
    * `max_brightness`
        * The maximum value which the HSV "V" component is scaled to, from 0 to 255.
        * Default: `255`
+    * `react_on_keyup`
+        * Animations react to keyup instead of keydown.
+        * Default: `false`
    * `sat_steps`
        * The number of saturation adjustment steps.
        * Default: `16`
+    * `sleep`
+        * Turn off the LEDs when the host goes to sleep.
+        * Default: `false`
    * `speed_steps`
        * The number of speed adjustment steps.
        * Default: `16`
@ -584,6 +699,10 @@ Configures the [Split Keyboard](feature_split_keyboard.md) feature.
    * `bootmagic`
        * `matrix`
            * See [Bootmagic](#bootmagic) config.
+    * `dip_switch`
+        * `right`
+            * `pins`
+                * See [DIP Switches](#dip-switch) config.
    * `enabled`
        * Enable the Split Keyboard feature.
        * Default: `false`
@ -591,6 +710,12 @@ Configures the [Split Keyboard](feature_split_keyboard.md) feature.
        * `right`
            * `rotary`
                * See [Encoder](#encoder) config.
+    * `handedness`
+        * `pin`
+            * The GPIO pin connected to determine handedness.
+        * `matrix_grid`
+            * The GPIO pins of the matrix position which determines the handedness.
+            * Example: `["A1", "B5"]`
    * `matrix_pins`
        * `right`
            * See [Matrix](#matrix) config.
@ -602,12 +727,37 @@ Configures the [Split Keyboard](feature_split_keyboard.md) feature.
    * `transport`
        * `protocol`
            * The split transport protocol to use. Must be one of `custom`, `i2c`, `serial`, `serial_usart`.
-        * `sync_matrix_state`
-            * Mirror the main/primary half's matrix state to the secondary half.
-            * Default: `false`
-        * `sync_modifiers`
-            * Mirror the modifier state to the secondary half.
-            * Default: `false`
+        * `sync`
+            * `activity`
+                * Mirror the activity timestamps to the secondary half.
+                * Default: `false`
+            * `detected_os`
+                * Mirror the [detected OS](feature_os_detection.md) to the secondary half.
+                * Default: `false`
+            * `haptic`
+                * Mirror the haptic state and process haptic feedback to the secondary half.
+                * Default: `false`
+            * `layer_state`
+                * Mirror the layer state to the secondary half.
+                * Default: `false`
+            * `indicators`
+                * Mirror the indicator state to the secondary half.
+                * Default: `false`
+            * `matrix_state`
+                * Mirror the main/primary half's matrix state to the secondary half.
+                * Default: `false`
+            * `modifiers`
+                * Mirror the modifier state to the secondary half.
+                * Default: `false`
+            * `oled`
+                * Mirror the OLED on/off status to the secondary half.
+                * Default: `false`
+            * `st7565`
+                * Mirror the ST7565 on/off status to the secondary half.
+                * Default: `false`
+            * `wpm`
+                * Mirror the current WPM value to the secondary half.
+                * Default: `false`
        * `watchdog`
            * Reboot the secondary half if it loses connection.
            * Default: `false`
--- a/docs/reference_keymap_extras.md
+++ b/docs/reference_keymap_extras.md
@ -87,6 +87,5 @@ There are also a few which are not quite language-specific, but useful if you ar
 |Norman             |`keymap_norman.h`           |`sendstring_norman.h`           |
 |Plover             |`keymap_plover.h`           |                                |
 |Plover (Dvorak)    |`keymap_plover_dvorak.h`    |                                |
-|Steno              |`keymap_steno.h`            |                                |
 |Workman            |`keymap_workman.h`          |`sendstring_workman.h`          |
 |Workman (ZXCVM)    |`keymap_workman_zxcvm.h`    |`sendstring_workman_zxcvm.h`    |
--- a/docs/serial_driver.md
+++ b/docs/serial_driver.md
@ -235,7 +235,7 @@ Where 'n' matches the peripheral number of your selected USART on the MCU.

 The `PIO` subsystem is a Raspberry Pi RP2040 specific implementation, using the integrated PIO peripheral and is therefore only available on this MCU. Because of the flexible nature of the PIO peripherals, **any** GPIO pin can be used as a `TX` or `RX` pin. Half-duplex and Full-duplex operation is fully supported. The Half-duplex operation mode uses the built-in pull-ups and GPIO manipulation on the RP2040 to drive the line high by default. An external pull-up is therefore not necessary.

-Configure the hardware via your config.h:
+You may optionally switch the PIO peripheral used with the following define in config.h:
 ```c
 #define SERIAL_PIO_USE_PIO1 // Force the usage of PIO1 peripheral, by default the Serial implementation uses the PIO0 peripheral
 ```
--- a/docs/spi_driver.md
+++ b/docs/spi_driver.md
@ -2,6 +2,18 @@

 The SPI Master drivers used in QMK have a set of common functions to allow portability between MCUs.

+## Usage :id=usage
+
+In most cases, the SPI Master driver code is automatically included if you are using a feature or driver which requires it, such as [OLED](feature_oled_driver.md).
+
+However, if you need to use the driver standalone, add the following to your `rules.mk`:
+
+```make
+SPI_DRIVER_REQUIRED = yes
+```
+
+You can then call the SPI API by including `spi_master.h` in your code.
+
 ## AVR Configuration :id=avr-configuration

 No special setup is required - just connect the `SS`, `SCK`, `MOSI` and `MISO` pins of your SPI devices to the matching pins on the MCU:
@ -49,6 +61,11 @@ Configuration-wise, you'll need to set up the peripheral as per your MCU's datas

 As per the AVR configuration, you may choose any other standard GPIO as a slave select pin, which should be supplied to `spi_start()`.

+If a complete SPI interface is not required, then the following can be done to disable certain SPI pins, so they don't occupy a GPIO unnecessarily:
+ - in `config.h`: `#define SPI_MISO_PIN NO_PIN`
+ - in `config.h`: `#define SPI_MOSI_PIN NO_PIN`
+ - in `mcuconf.h`: `#define SPI_SELECT_MODE SPI_SELECT_MODE_NONE`, in this case the `slavePin` argument passed to `spi_start()` may be `NO_PIN` if the slave select pin is not used.
+
 ## API :id=api

 ### `void spi_init(void)` :id=api-spi-init
--- a/docs/squeezing_avr.md
+++ b/docs/squeezing_avr.md
@ -168,6 +168,7 @@ For RGB Matrix, these need to be explicitly enabled as well. To disable any that
 #undef ENABLE_RGB_MATRIX_DUAL_BEACON
 #undef ENABLE_RGB_MATRIX_RAINBOW_BEACON
 #undef ENABLE_RGB_MATRIX_RAINBOW_PINWHEELS
+#undef ENABLE_RGB_MATRIX_FLOWER_BLOOMING
 #undef ENABLE_RGB_MATRIX_RAINDROPS
 #undef ENABLE_RGB_MATRIX_JELLYBEAN_RAINDROPS
 #undef ENABLE_RGB_MATRIX_HUE_BREATHING
--- a/docs/tap_hold.md
+++ b/docs/tap_hold.md
@ -493,7 +493,7 @@ Examples:

 One thing that you may notice is that we include the key record for all of the "per key" functions, and may be wondering why we do that.

-Well, it's simple really: customization.  But specifically, it depends on how your keyboard is wired up.  For instance, if each row is actually using a row in the keyboard's matrix, then it may be simpler to use `if (record->event.row == 3)` instead of checking a whole bunch of keycodes.  Which is especially good for those people using the Tap Hold type keys on the home row. So you could fine-tune those to not interfere with your normal typing.
+Well, it's simple really: customization.  But specifically, it depends on how your keyboard is wired up.  For instance, if each row is actually using a row in the keyboard's matrix, then it may be simpler to use `if (record->event.key.row == 3)` instead of checking a whole bunch of keycodes.  Which is especially good for those people using the Tap Hold type keys on the home row. So you could fine-tune those to not interfere with your normal typing.

 ## Why are there no `*_kb` or `*_user` functions?!

--- a/docs/uart_driver.md
+++ b/docs/uart_driver.md
@ -4,6 +4,18 @@ The UART drivers used in QMK have a set of common functions to allow portability

 Currently, this driver does not support enabling hardware flow control (the `RTS` and `CTS` pins) if available, but may do so in future.

+## Usage :id=usage
+
+In most cases, the UART driver code is automatically included if you are using a feature or driver which requires it.
+
+However, if you need to use the driver standalone, add the following to your `rules.mk`:
+
+```make
+UART_DRIVER_REQUIRED = yes
+```
+
+You can then call the UART API by including `uart.h` in your code.
+
 ## AVR Configuration :id=avr-configuration

 No special setup is required - just connect the `RX` and `TX` pins of your UART device to the opposite pins on the MCU:
--- a/docs/unit_testing.md
+++ b/docs/unit_testing.md
@ -36,7 +36,9 @@ Note how there's several different tests, each mocking out a separate part. Also

 ## Running the Tests

-To run all the tests in the codebase, type `make test:all`. You can also run test matching a substring by typing `make test:matchingsubstring` Note that the tests are always compiled with the native compiler of your platform, so they are also run like any other program on your computer.
+To run all the tests in the codebase, type `make test:all`. You can also run test matching a substring by typing `make test:matchingsubstring`. `matchingsubstring` can contain colons to be more specific; `make test:tap_hold_configurations` will run the `tap_hold_configurations` tests for all features while `make test:retro_shift:tap_hold_configurations` will run the `tap_hold_configurations` tests for only the Retro Shift feature.
+
+Note that the tests are always compiled with the native compiler of your platform, so they are also run like any other program on your computer.

 ## Debugging the Tests

--- a/docs/ws2812_driver.md
+++ b/docs/ws2812_driver.md
@ -1,189 +1,229 @@
-# WS2812 Driver
-This driver powers the [RGB Lighting](feature_rgblight.md) and [RGB Matrix](feature_rgb_matrix.md) features.
+# WS2812 Driver :id=ws2812-driver

-Currently QMK supports the following addressable LEDs (however, the white LED in RGBW variants is not supported):
+This driver provides support for WorldSemi addressable RGB(W) LEDs, and compatible equivalents:

-    WS2811, WS2812, WS2812B, WS2812C, etc.
-    SK6812, SK6812MINI, SK6805
+ * WS2811, WS2812, WS2812B, WS2812C, etc.
+ * SK6812, SK6812MINI, SK6805

-These LEDs are called "addressable" because instead of using a wire per color, each LED contains a small microchip that understands a special protocol sent over a single wire. The chip passes on the remaining data to the next LED, allowing them to be chained together. In this way, you can easily control the color of the individual LEDs.
+These LEDs are often called "addressable" because instead of using a wire per color (and per LED), each LED contains a small microchip that understands a special protocol sent over a single wire.
+The LEDs can be chained together, and the remaining data is passed on to the next. In this way, you can easily control the color of many LEDs using a single GPIO.

-## Supported Driver Types
+## Usage :id=usage

-|          | AVR                | ARM                |
-| -------- | ------------------ | ------------------ |
-| bit bang | :heavy_check_mark: | :heavy_check_mark: |
-| I2C      | :heavy_check_mark: |                    |
-| SPI      |                    | :heavy_check_mark: |
-| PWM      |                    | :heavy_check_mark: |
-| PIO      |                    | :heavy_check_mark: |
+In most cases, the WS2812 driver code is automatically included if you are using either the [RGBLight](feature_rgblight.md) or [RGB Matrix](feature_rgb_matrix.md) feature with the `ws2812` driver set, and you would use those APIs instead.

-## Driver configuration
+However, if you need to use the driver standalone, add the following to your `rules.mk`:

-### All drivers
-
-Different versions of the addressable LEDs have differing requirements for the T<sub>RST</sub> period between frames.
-The default setting is 280 µs, which should work for most cases, but this can be overridden in your config.h. e.g.:
-
-```c
-#define WS2812_TRST_US 80
+```make
+WS2812_DRIVER_REQUIRED = yes
 ```

-#### Byte Order
+You can then call the WS2812 API by including `ws2812.h` in your code.

-Some variants of the WS2812 may have their color components in a different physical or logical order. For example, the WS2812B-2020 has physically swapped red and green LEDs, which causes the wrong color to be displayed, because the default order of the bytes sent over the wire is defined as GRB.
-In this case, you can change the byte order by defining `WS2812_BYTE_ORDER` as one of the following values:
+## Basic Configuration :id=basic-configuration

-| Byte order                        | Known devices                 |
-| --------------------------------- | ----------------------------- |
-| `WS2812_BYTE_ORDER_GRB` (default) | Most WS2812's, SK6812, SK6805 |
-| `WS2812_BYTE_ORDER_RGB`           | WS2812B-2020                  |
-| `WS2812_BYTE_ORDER_BGR`           | TM1812                        |
+Add the following to your `config.h`:

+|Define             |Default                |Description                                                                                     |
+|-------------------|-----------------------|------------------------------------------------------------------------------------------------|
+|`WS2812_DI_PIN`    |*Not defined*          |The GPIO pin connected to the DI pin of the first LED in the chain                              |
+|`WS2812_LED_COUNT` |*Not defined*          |Number of LEDs in the WS2812 chain - automatically set when RGBLight or RGB Matrix is configured|
+|`WS2812_TIMING`    |`1250`                 |The total length of a bit (TH+TL) in nanoseconds                                                |
+|`WS2812_T1H`       |`900`                  |The length of a "1" bit's high phase in nanoseconds                                             |
+|`WS2812_T0H`       |`350`                  |The length of a "0" bit's high phase in nanoseconds                                             |
+|`WS2812_TRST_US`   |`280`                  |The length of the reset phase in microseconds                                                   |
+|`WS2812_BYTE_ORDER`|`WS2812_BYTE_ORDER_GRB`|The byte order of the RGB data                                                                  |

-### Bitbang
-Default driver, the absence of configuration assumes this driver. To configure it, add this to your rules.mk:
+### Timing Adjustment :id=timing-adjustment
+
+The WS2812 LED communication protocol works by encoding a "1" bit with a long high pulse (T<sub>1</sub>H), and a "0" bit with a shorter pulse (T<sub>0</sub>H). The total cycle length of a bit is the same.
+The "reset" pulse (T<sub>RST</sub>) latches the sent RGB data to all of the LEDs and denotes a completed "frame".
+
+Some WS2812 variants have slightly different timing parameter requirements, which can be accounted for if necessary using the above `#define`s in your `config.h`.
+
+### Byte Order :id=byte-order
+
+Some WS2812 variants may have their color components in a different physical or logical order. For example, the WS2812B-2020 has physically swapped red and green LEDs, which causes the wrong color to be displayed, because the default order of the bytes sent over the wire is defined as GRB.
+If you find your LED colors are consistently swapped, you may need to change the byte order by adding the following to your `config.h`:
+
+```c
+#define WS2812_BYTE_ORDER WS2812_BYTE_ORDER_GRB
+```
+
+Where the byte order may be one of:
+
+|Byte Order|Known Devices               |
+|----------|----------------------------|
+|`GRB`     |Most WS2812s, SK6812, SK6805|
+|`RGB`     |WS2812B-2020                |
+|`BGR`     |TM1812                      |
+
+## Driver Configuration :id=driver-configuration
+
+Driver selection can be configured in `rules.mk` as `WS2812_DRIVER`, or in `info.json` as `ws2812.driver`. Valid values are `bitbang` (default), `i2c`, `spi`, `pwm`, `vendor`, or `custom`. See below for information on individual drivers.
+
+### Bitbang Driver :id=bitbang-driver
+
+This is the default WS2812 driver. It operates by "bit-banging" ie. directly toggling the GPIO.
+
+Please note that on AVR devices, due to the tight timing requirements longer chains and/or heavy CPU loads may cause visible lag. Unfortunately this driver is usually the only option for AVR.

 ```make
 WS2812_DRIVER = bitbang
 ```

-!> This driver is not hardware accelerated and may not be performant on heavily loaded systems.
+### I2C Driver :id=i2c-driver

-#### Adjusting bit timings
-
-The WS2812 LED communication topology depends on a serialized timed window. Different versions of the addressable LEDs have differing requirements for the timing parameters, for instance, of the SK6812.
-You can tune these parameters through the definition of the following macros:
-
-| Macro           | Default                      | AVR                | ARM                |
-| --------------- | ---------------------------- | ------------------ | ------------------ |
-| `WS2812_TIMING` | `1250`                       | :heavy_check_mark: | :heavy_check_mark: |
-| `WS2812_T0H`    | `350`                        | :heavy_check_mark: | :heavy_check_mark: |
-| `WS2812_T0L`    | `WS2812_TIMING - WS2812_T0H` |                    | :heavy_check_mark: |
-| `WS2812_T1H`    | `900`                        | :heavy_check_mark: | :heavy_check_mark: |
-| `WS2812_T1L`    | `WS2812_TIMING - WS2812_T1H` |                    | :heavy_check_mark: |
-
-### I2C
-Targeting boards where WS2812 support is offloaded to a 2nd MCU. Currently the driver is limited to AVR given the known consumers are ps2avrGB/BMC. To configure it, add this to your rules.mk:
+A specialized driver mainly used for PS2AVRGB (Bootmapper Client) boards, which possess an ATtiny85 that handles the WS2812 LEDs.

 ```make
 WS2812_DRIVER = i2c
 ```

-Configure the hardware via your config.h:
-```c
-#define WS2812_I2C_ADDRESS 0xB0 // default: 0xB0
-#define WS2812_I2C_TIMEOUT 100 // default: 100
-```
+The following `#define`s apply only to the `i2c` driver:

-### SPI
-Targeting STM32 boards where WS2812 support is offloaded to an SPI hardware device. The advantage is that the use of DMA offloads processing of the WS2812 protocol from the MCU. `WS2812_DI_PIN` for this driver is the configured SPI MOSI pin. Due to the nature of repurposing SPI to drive the LEDs, the other SPI pins, MISO and SCK, **must** remain unused. To configure it, add this to your rules.mk:
+|Define              |Default|Description                      |
+|--------------------|-------|---------------------------------|
+|`WS2812_I2C_ADDRESS`|`0xB0` |The I2C address of the ATtiny85. |
+|`WS2812_I2C_TIMEOUT`|`100`  |The I2C timeout, in milliseconds.|

-```make
-WS2812_DRIVER = spi
-```
+### PIO Driver :id=pio-driver

-Configure the hardware via your config.h:
-```c
-#define WS2812_SPI SPID1 // default: SPID1
-#define WS2812_SPI_MOSI_PAL_MODE 5 // MOSI pin "alternate function", see the respective datasheet for the appropriate values for your MCU. default: 5
-#define WS2812_SPI_SCK_PIN B3 // Required for F072, may be for others -- SCK pin, see the respective datasheet for the appropriate values for your MCU. default: unspecified
-#define WS2812_SPI_SCK_PAL_MODE 5 // SCK pin "alternate function", see the respective datasheet for the appropriate values for your MCU. default: 5
-```
+This driver is RP2040-only, and leverages the onboard PIO (programmable I/O) system and DMA to offload processing from the CPU.

-You must also turn on the SPI feature in your halconf.h and mcuconf.h
-
-#### Circular Buffer Mode
-Some boards may flicker while in the normal buffer mode. To fix this issue, circular buffer mode may be used to rectify the issue. 
-
-By default, the circular buffer mode is disabled.
-
-To enable this alternative buffer mode, place this into your `config.h` file:
-```c
-#define WS2812_SPI_USE_CIRCULAR_BUFFER
-```
-
-#### Setting baudrate with divisor
-To adjust the baudrate at which the SPI peripheral is configured, users will need to derive the target baudrate from the clock tree provided by STM32CubeMX.
-
-Only divisors of 2, 4, 8, 16, 32, 64, 128 and 256 are supported by hardware.
-
-| Define               | Default | Description                         |
-| -------------------- | ------- | ----------------------------------- |
-| `WS2812_SPI_DIVISOR` | `16`    | SPI source clock peripheral divisor |
-
-#### Testing Notes
-
-While not an exhaustive list, the following table provides the scenarios that have been partially validated:
-
-|      | SPI1                                        | SPI2                                    | SPI3                  |
-| ---- | ------------------------------------------- | --------------------------------------- | --------------------- |
-| f072 | ?                                           | B15 :heavy_check_mark: (needs SCK: B13) | N/A                   |
-| f103 | A7 :heavy_check_mark:                       | B15 :heavy_check_mark:                  | N/A                   |
-| f303 | A7 :heavy_check_mark: B5 :heavy_check_mark: | B15 :heavy_check_mark:                  | B5 :heavy_check_mark: |
-
-*Other supported ChibiOS boards and/or pins may function, it will be highly chip and configuration dependent.*
-
-### PWM
-
-Targeting STM32 boards where WS2812 support is offloaded to an PWM timer and DMA stream. The advantage is that the use of DMA offloads processing of the WS2812 protocol from the MCU. To configure it, add this to your rules.mk:
-
-```make
-WS2812_DRIVER = pwm
-```
-
-Configure the hardware via your config.h:
-```c
-#define WS2812_PWM_DRIVER PWMD2  // default: PWMD2
-#define WS2812_PWM_CHANNEL 2  // default: 2
-#define WS2812_PWM_PAL_MODE 2  // Pin "alternate function", see the respective datasheet for the appropriate values for your MCU. default: 2
-//#define WS2812_PWM_COMPLEMENTARY_OUTPUT // Define for a complementary timer output (TIMx_CHyN); omit for a normal timer output (TIMx_CHy).
-#define WS2812_DMA_STREAM STM32_DMA1_STREAM2  // DMA Stream for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
-#define WS2812_DMA_CHANNEL 2  // DMA Channel for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
-#define WS2812_DMAMUX_ID STM32_DMAMUX1_TIM2_UP // DMAMUX configuration for TIMx_UP -- only required if your MCU has a DMAMUX peripheral, see the respective reference manual for the appropriate values for your MCU.
-```
-
-Note that using a complementary timer output (TIMx_CHyN) is possible only for advanced-control timers (TIM1, TIM8, TIM20 on STM32), and the `STM32_PWM_USE_ADVANCED` option in mcuconf.h must be set to `TRUE`.  Complementary outputs of general-purpose timers are not supported due to ChibiOS limitations.
-
-You must also turn on the PWM feature in your halconf.h and mcuconf.h
-
-#### Testing Notes
-
-While not an exhaustive list, the following table provides the scenarios that have been partially validated:
-
-|           | Status             |
-| --------- | ------------------ |
-| f072      | ?                  |
-| f103      | :heavy_check_mark: |
-| f303      | :heavy_check_mark: |
-| f401/f411 | :heavy_check_mark: |
-
-*Other supported ChibiOS boards and/or pins may function, it will be highly chip and configuration dependent.*
-
-### PIO
-
-Targeting Raspberry Pi RP2040 boards only where WS2812 support is offloaded to an dedicated PIO implementation. This offloads processing of the WS2812 protocol from the MCU to a dedicated PIO program using DMA transfers.
-
-To configure it, add this to your rules.mk:
+The WS2812 PIO program uses one state machine, six instructions and one DMA interrupt handler callback. Due to the implementation the time resolution for this driver is 50 ns - any value not specified in this interval will be rounded to the next matching interval.

 ```make
 WS2812_DRIVER = vendor
 ```

-Configure the hardware via your config.h:
-```c
-#define WS2812_PIO_USE_PIO1 // Force the usage of PIO1 peripheral, by default the WS2812 implementation uses the PIO0 peripheral
+### PWM Driver :id=pwm-driver
+
+This driver is ARM-only, and leverages the onboard PWM peripheral and DMA to offload processing from the CPU.
+
+```make
+WS2812_DRIVER = pwm
 ```

-The WS2812 PIO programm uses 1 state machine, 6 instructions and one DMA interrupt handler callback. Due to the implementation the time resolution for this drivers is 50ns, any value not specified in this interval will be rounded to the next matching interval.
+### SPI Driver :id=spi-driver

-### Push Pull and Open Drain Configuration
-The default configuration is a push pull on the defined pin.
-This can be configured for bitbang, PWM and SPI.
+This driver is ARM-only, and leverages the onboard SPI peripheral and DMA to offload processing from the CPU. The DI pin **must** be connected to the MOSI pin on the MCU, and all other SPI pins **must** be left unused. This is also very dependent on your MCU's SPI peripheral clock speed, and may or may not be possible depending on the MCU selected.

-Note: This only applies to STM32 boards.
+```make
+WS2812_DRIVER = spi
+```
+
+## ChibiOS/ARM Configuration :id=arm-configuration
+
+The following defines apply only to ARM devices:
+
+|Define      |Default                       |Description                                                                      |
+|------------|------------------------------|---------------------------------------------------------------------------------|
+|`WS2812_T1L`|`(WS2812_TIMING - WS2812_T1H)`|The length of a "1" bit's low phase in nanoseconds (bitbang and PIO drivers only)|
+|`WS2812_T0L`|`(WS2812_TIMING - WS2812_T0H)`|The length of a "0" bit's low phase in nanoseconds (bitbang and PIO drivers only)|
+
+### Push-Pull and Open Drain :id=push-pull-open-drain
+
+By default, the GPIO used for data transmission is configured as a *push-pull* output, meaning the pin is effectively always driven either to VCC or to ground.
+
+For situations where the logic level voltage is lower than the power supply voltage, however, this can pose an issue. The solution is to configure the pin for *open drain* mode instead, and use a pullup resistor between the DI pin and VCC. In this mode, the MCU can only pull the GPIO *low*, or leave it floating. The pullup resistor is then responsible for pulling the line high, when the MCU is not driving the GPIO.
+
+To configure the DI pin for open drain configuration, add the following to your `config.h`:

- To configure the `WS2812_DI_PIN` to open drain configuration add this to your config.h file: 
 ```c
 #define WS2812_EXTERNAL_PULLUP
 ```
+
+### SPI Driver :id=arm-spi-driver
+
+Depending on the ChibiOS board configuration, you may need to enable SPI at the keyboard level. For STM32, this would look like:
+
+`halconf.h`:
+```c
+#define HAL_USE_SPI TRUE
+```
+`mcuconf.h`:
+```c
+#undef STM32_SPI_USE_SPI1
+#define STM32_SPI_USE_SPI1 TRUE
+```
+
+The following `define`s apply only to the `spi` driver:
+
+|Define                          |Default      |Description                                                                    |
+|--------------------------------|-------------|-------------------------------------------------------------------------------|
+|`WS2812_SPI_DRIVER`             |`SPID1`      |The SPI driver to use                                                          |
+|`WS2812_SPI_MOSI_PAL_MODE`      |`5`          |The MOSI pin alternative function to use                                       |
+|`WS2812_SPI_SCK_PIN`            |*Not defined*|The SCK pin - required for F072 and possibly others                            |
+|`WS2812_SPI_SCK_PAL_MODE`       |`5`          |The SCK pin alternative function to use - required for F072 and possibly others|
+|`WS2812_SPI_DIVISOR`            |`16`         |The divisor used to adjust the baudrate                                        |
+|`WS2812_SPI_USE_CIRCULAR_BUFFER`|*Not defined*|Enable a circular buffer for improved rendering                                |
+
+#### Setting the Baudrate :id=arm-spi-baudrate
+
+To adjust the SPI baudrate, you will need to derive the target baudrate from the clock tree provided by STM32CubeMX, and add the following to your `config.h`:
+
+```c
+#define WS2812_SPI_DIVISOR 16
+```
+
+Only divisors of 2, 4, 8, 16, 32, 64, 128 and 256 are supported on STM32 devices. Other MCUs may have similar constraints -- check the reference manual for your respective MCU for specifics.
+
+#### Circular Buffer :id=arm-spi-circular-buffer
+
+A circular buffer can be enabled if you experience flickering.
+
+To enable the circular buffer, add the following to your `config.h`:
+
+```c
+#define WS2812_SPI_USE_CIRCULAR_BUFFER
+```
+
+### PIO Driver :id=arm-pio-driver
+
+The following `#define`s apply only to the PIO driver:
+
+|Define               |Default      |Description                            |
+|---------------------|-------------|---------------------------------------|
+|`WS2812_PIO_USE_PIO1`|*Not defined*|Use the PIO1 peripheral instead of PIO0|
+
+### PWM Driver :id=arm-pwm-driver
+
+Depending on the ChibiOS board configuration, you may need to enable PWM at the keyboard level. For STM32, this would look like:
+
+`halconf.h`:
+```c
+#define HAL_USE_PWM TRUE
+```
+`mcuconf.h`:
+```c
+#undef STM32_PWM_USE_TIM2
+#define STM32_PWM_USE_TIM2 TRUE
+```
+
+The following `#define`s apply only to the `pwm` driver:
+
+|Define                           |Default             |Description                                                                               |
+|---------------------------------|--------------------|------------------------------------------------------------------------------------------|
+|`WS2812_PWM_DRIVER`              |`PWMD2`             |The PWM driver to use                                                                     |
+|`WS2812_PWM_CHANNEL`             |`2`                 |The PWM channel to use                                                                    |
+|`WS2812_PWM_PAL_MODE`            |`2`                 |The pin alternative function to use                                                       |
+|`WS2812_DMA_STREAM`              |`STM32_DMA1_STREAM2`|The DMA Stream for `TIMx_UP`                                                              |
+|`WS2812_DMA_CHANNEL`             |`2`                 |The DMA Channel for `TIMx_UP`                                                             |
+|`WS2812_DMAMUX_ID`               |*Not defined*       |The DMAMUX configuration for `TIMx_UP` - only required if your MCU has a DMAMUX peripheral|
+|`WS2812_PWM_COMPLEMENTARY_OUTPUT`|*Not defined*       |Whether the PWM output is complementary (`TIMx_CHyN`)                                     |
+
+?> Using a complementary timer output (`TIMx_CHyN`) is possible only for advanced-control timers (1, 8 and 20 on STM32), and the `STM32_PWM_USE_ADVANCED` option in `mcuconf.h` must be set to `TRUE`. Complementary outputs of general-purpose timers are not supported due to ChibiOS limitations.
+
+## API :id=api
+
+### `void ws2812_setleds(rgb_led_t *ledarray, uint16_t number_of_leds)` :id=api-ws2812-setleds
+
+Send RGB data to the WS2812 LED chain.
+
+#### Arguments :id=api-ws2812-setleds-arguments
+
+ - `rgb_led_t *ledarray`  
+   A pointer to the LED array.
+ - `uint16_t number_of_leds`  
+   The length of the LED array.
--- a/docs/zh-cn/_summary.md
+++ b/docs/zh-cn/_summary.md
@ -121,7 +121,6 @@
    * [分体式键盘](zh-cn/feature_split_keyboard.md)
    * [速记](zh-cn/feature_stenography.md)
    * [热敏打印机](zh-cn/feature_thermal_printer.md)
-    * [Velocikey](zh-cn/feature_velocikey.md)

 * QMK开发
  * [PR Checklist](zh-cn/pr_checklist.md)
--- a/drivers/eeprom/eeprom_spi.h
+++ b/drivers/eeprom/eeprom_spi.h
@ -16,6 +16,18 @@

 #pragma once

+/*
+    Default device configurations:
+
+    For the Adafruit SPI Non-Volatile FRAM Breakout: https://www.adafruit.com/product/1897
+        #define EEPROM_SPI_MB85RS64V
+*/
+#if defined(EEPROM_SPI_MB85RS64V)
+#    define EXTERNAL_EEPROM_BYTE_COUNT 8192
+#    define EXTERNAL_EEPROM_PAGE_SIZE 64 // it's FRAM, so it doesn't actually matter, this just sets the RAM buffer
+#    define EXTERNAL_EEPROM_ADDRESS_SIZE 2
+#endif
+
 /*
    The slave select pin of the EEPROM.
    This needs to be a normal GPIO pin_t value, such as A7.
--- a/drivers/haptic/solenoid.c
+++ b/drivers/haptic/solenoid.c
@ -23,7 +23,6 @@
 #include "util.h"
 #include <stdlib.h>

-uint8_t      solenoid_dwell  = SOLENOID_DEFAULT_DWELL;
 static pin_t solenoid_pads[] = SOLENOID_PINS;
 #define NUMBER_OF_SOLENOIDS ARRAY_SIZE(solenoid_pads)
 bool     solenoid_on[NUMBER_OF_SOLENOIDS]      = {false};
@ -53,7 +52,7 @@ void solenoid_set_buzz(uint8_t buzz) {
 }

 void solenoid_set_dwell(uint8_t dwell) {
-    solenoid_dwell = dwell;
+    haptic_set_dwell(dwell);
 }

 /**
@ -119,7 +118,7 @@ void solenoid_check(void) {
        elapsed[i] = timer_elapsed(solenoid_start[i]);

        // Check if it's time to finish this solenoid click cycle
-        if (elapsed[i] > solenoid_dwell) {
+        if (elapsed[i] > haptic_config.dwell) {
            solenoid_stop(i);
            continue;
        }
--- a/drivers/led/apa102.c
+++ b/drivers/led/apa102.c
@ -24,7 +24,7 @@
 #    elif defined(PROTOCOL_CHIBIOS)
 #        include "hal.h"
 #        include "chibios_config.h"
-#        if defined(STM32F0XX) || defined(STM32F1XX) || defined(STM32F3XX) || defined(STM32F4XX) || defined(STM32L0XX) || defined(GD32VF103)
+#        if defined(STM32F0XX) || defined(STM32F1XX) || defined(STM32F3XX) || defined(STM32F4XX) || defined(STM32L0XX) || defined(GD32VF103) || defined(MCU_RP)
 #            define APA102_NOPS (100 / (1000000000L / (CPU_CLOCK / 4))) // This calculates how many loops of 4 nops to run to delay 100 ns
 #        else
 #            error APA102_NOPS configuration required
@ -61,18 +61,18 @@ void static apa102_end_frame(uint16_t num_leds);
 void static apa102_send_frame(uint8_t red, uint8_t green, uint8_t blue, uint8_t brightness);
 void static apa102_send_byte(uint8_t byte);

-void apa102_setleds(LED_TYPE *start_led, uint16_t num_leds) {
-    LED_TYPE *end = start_led + num_leds;
+void apa102_setleds(rgb_led_t *start_led, uint16_t num_leds) {
+    rgb_led_t *end = start_led + num_leds;

    apa102_start_frame();
-    for (LED_TYPE *led = start_led; led < end; led++) {
+    for (rgb_led_t *led = start_led; led < end; led++) {
        apa102_send_frame(led->r, led->g, led->b, apa102_led_brightness);
    }
    apa102_end_frame(num_leds);
 }

 // Overwrite the default rgblight_call_driver to use apa102 driver
-void rgblight_call_driver(LED_TYPE *start_led, uint8_t num_leds) {
+void rgblight_call_driver(rgb_led_t *start_led, uint8_t num_leds) {
    apa102_setleds(start_led, num_leds);
 }

--- a/drivers/led/apa102.h
+++ b/drivers/led/apa102.h
@ -37,5 +37,5 @@ extern uint8_t apa102_led_brightness;
 *         - Set the data-out pin as output
 *         - Send out the LED data
 */
-void apa102_setleds(LED_TYPE *start_led, uint16_t num_leds);
+void apa102_setleds(rgb_led_t *start_led, uint16_t num_leds);
 void apa102_set_brightness(uint8_t brightness);
--- a/drivers/led/aw20216.c
+++ b/drivers/led/aw20216.c
@ -1,168 +0,0 @@
-/* Copyright 2021 Jasper Chan
- *           2023 Huckies <https://github.com/Huckies>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "aw20216.h"
-#include "wait.h"
-#include "spi_master.h"
-
-/* The AW20216 appears to be somewhat similar to the IS31FL743, although quite
- * a few things are different, such as the command byte format and page ordering.
- * The LED addresses start from 0x00 instead of 0x01.
- */
-#define AWINIC_ID 0b1010 << 4
-
-#define AW_PAGE_FUNCTION 0x00 << 1   // PG0, Function registers
-#define AW_PAGE_PWM 0x01 << 1        // PG1, LED PWM control
-#define AW_PAGE_SCALING 0x02 << 1    // PG2, LED current scaling control
-#define AW_PAGE_PATCHOICE 0x03 << 1  // PG3, Pattern choice?
-#define AW_PAGE_PWMSCALING 0x04 << 1 // PG4, LED PWM + Scaling control?
-
-#define AW_WRITE 0
-#define AW_READ 1
-
-#define AW_REG_CONFIGURATION 0x00 // PG0
-#define AW_REG_GLOBALCURRENT 0x01 // PG0
-#define AW_REG_RESET 0x2F         // PG0
-#define AW_REG_MIXFUNCTION 0x46   // PG0
-
-// Default value of AW_REG_CONFIGURATION
-// D7:D4 = 1011, SWSEL (SW1~SW12 active)
-// D3 = 0?, reserved (apparently this should be 1 but it doesn't seem to matter)
-// D2:D1 = 00, OSDE (open/short detection enable)
-// D0 = 0, CHIPEN (write 1 to enable LEDs when hardware enable pulled high)
-#define AW_CONFIG_DEFAULT 0b10110000
-#define AW_MIXCR_DEFAULT 0b00000000
-#define AW_RESET_CMD 0xAE
-#define AW_CHIPEN 1
-#define AW_LPEN (0x01 << 1)
-
-#define AW_PWM_REGISTER_COUNT 216
-
-#ifndef AW_SCALING_MAX
-#    define AW_SCALING_MAX 150
-#endif
-
-#ifndef AW_GLOBAL_CURRENT_MAX
-#    define AW_GLOBAL_CURRENT_MAX 150
-#endif
-
-#ifndef AW_SPI_MODE
-#    define AW_SPI_MODE 0
-#endif
-
-#ifndef AW_SPI_DIVISOR
-#    define AW_SPI_DIVISOR 4
-#endif
-
-uint8_t g_pwm_buffer[DRIVER_COUNT][AW_PWM_REGISTER_COUNT];
-bool    g_pwm_buffer_update_required[DRIVER_COUNT] = {false};
-
-bool aw20216_write(pin_t cs_pin, uint8_t page, uint8_t reg, uint8_t* data, uint8_t len) {
-    static uint8_t s_spi_transfer_buffer[2] = {0};
-
-    if (!spi_start(cs_pin, false, AW_SPI_MODE, AW_SPI_DIVISOR)) {
-        spi_stop();
-        return false;
-    }
-
-    s_spi_transfer_buffer[0] = (AWINIC_ID | page | AW_WRITE);
-    s_spi_transfer_buffer[1] = reg;
-
-    if (spi_transmit(s_spi_transfer_buffer, 2) != SPI_STATUS_SUCCESS) {
-        spi_stop();
-        return false;
-    }
-
-    if (spi_transmit(data, len) != SPI_STATUS_SUCCESS) {
-        spi_stop();
-        return false;
-    }
-
-    spi_stop();
-    return true;
-}
-
-static inline bool aw20216_write_register(pin_t cs_pin, uint8_t page, uint8_t reg, uint8_t value) {
-    // Little wrapper so callers need not care about sending a buffer
-    return aw20216_write(cs_pin, page, reg, &value, 1);
-}
-
-void aw20216_soft_reset(pin_t cs_pin) {
-    aw20216_write_register(cs_pin, AW_PAGE_FUNCTION, AW_REG_RESET, AW_RESET_CMD);
-}
-
-static void aw20216_init_scaling(pin_t cs_pin) {
-    // Set constant current to the max, control brightness with PWM
-    for (uint8_t i = 0; i < AW_PWM_REGISTER_COUNT; i++) {
-        aw20216_write_register(cs_pin, AW_PAGE_SCALING, i, AW_SCALING_MAX);
-    }
-}
-
-static inline void aw20216_init_current_limit(pin_t cs_pin) {
-    // Push config
-    aw20216_write_register(cs_pin, AW_PAGE_FUNCTION, AW_REG_GLOBALCURRENT, AW_GLOBAL_CURRENT_MAX);
-}
-
-static inline void aw20216_soft_enable(pin_t cs_pin) {
-    // Push config
-    aw20216_write_register(cs_pin, AW_PAGE_FUNCTION, AW_REG_CONFIGURATION, AW_CONFIG_DEFAULT | AW_CHIPEN);
-}
-
-static inline void aw20216_auto_lowpower(pin_t cs_pin) {
-    aw20216_write_register(cs_pin, AW_PAGE_FUNCTION, AW_REG_MIXFUNCTION, AW_MIXCR_DEFAULT | AW_LPEN);
-}
-
-void aw20216_init(pin_t cs_pin, pin_t en_pin) {
-    setPinOutput(en_pin);
-    writePinHigh(en_pin);
-
-    aw20216_soft_reset(cs_pin);
-    wait_ms(2);
-
-    // Drivers should start with all scaling and PWM registers as off
-    aw20216_init_current_limit(cs_pin);
-    aw20216_init_scaling(cs_pin);
-
-    aw20216_soft_enable(cs_pin);
-    aw20216_auto_lowpower(cs_pin);
-}
-
-void aw20216_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
-    aw_led led;
-    memcpy_P(&led, (&g_aw_leds[index]), sizeof(led));
-
-    if (g_pwm_buffer[led.driver][led.r] == red && g_pwm_buffer[led.driver][led.g] == green && g_pwm_buffer[led.driver][led.b] == blue) {
-        return;
-    }
-    g_pwm_buffer[led.driver][led.r]          = red;
-    g_pwm_buffer[led.driver][led.g]          = green;
-    g_pwm_buffer[led.driver][led.b]          = blue;
-    g_pwm_buffer_update_required[led.driver] = true;
-}
-
-void aw20216_set_color_all(uint8_t red, uint8_t green, uint8_t blue) {
-    for (uint8_t i = 0; i < RGB_MATRIX_LED_COUNT; i++) {
-        aw20216_set_color(i, red, green, blue);
-    }
-}
-
-void aw20216_update_pwm_buffers(pin_t cs_pin, uint8_t index) {
-    if (g_pwm_buffer_update_required[index]) {
-        aw20216_write(cs_pin, AW_PAGE_PWM, 0, g_pwm_buffer[index], AW_PWM_REGISTER_COUNT);
-    }
-    g_pwm_buffer_update_required[index] = false;
-}
--- a/drivers/led/aw20216.h
+++ b/drivers/led/aw20216.h
@ -1,253 +0,0 @@
-/* Copyright 2021 Jasper Chan (Gigahawk)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#pragma once
-
-#include <stdint.h>
-#include <stdbool.h>
-#include "progmem.h"
-#include "gpio.h"
-
-typedef struct aw_led {
-    uint8_t driver : 2;
-    uint8_t r;
-    uint8_t g;
-    uint8_t b;
-} aw_led;
-
-extern const aw_led PROGMEM g_aw_leds[RGB_MATRIX_LED_COUNT];
-
-void aw20216_init(pin_t cs_pin, pin_t en_pin);
-void aw20216_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);
-void aw20216_set_color_all(uint8_t red, uint8_t green, uint8_t blue);
-void aw20216_update_pwm_buffers(pin_t cs_pin, uint8_t index);
-
-#define CS1_SW1 0x00
-#define CS2_SW1 0x01
-#define CS3_SW1 0x02
-#define CS4_SW1 0x03
-#define CS5_SW1 0x04
-#define CS6_SW1 0x05
-#define CS7_SW1 0x06
-#define CS8_SW1 0x07
-#define CS9_SW1 0x08
-#define CS10_SW1 0x09
-#define CS11_SW1 0x0A
-#define CS12_SW1 0x0B
-#define CS13_SW1 0x0C
-#define CS14_SW1 0x0D
-#define CS15_SW1 0x0E
-#define CS16_SW1 0x0F
-#define CS17_SW1 0x10
-#define CS18_SW1 0x11
-#define CS1_SW2 0x12
-#define CS2_SW2 0x13
-#define CS3_SW2 0x14
-#define CS4_SW2 0x15
-#define CS5_SW2 0x16
-#define CS6_SW2 0x17
-#define CS7_SW2 0x18
-#define CS8_SW2 0x19
-#define CS9_SW2 0x1A
-#define CS10_SW2 0x1B
-#define CS11_SW2 0x1C
-#define CS12_SW2 0x1D
-#define CS13_SW2 0x1E
-#define CS14_SW2 0x1F
-#define CS15_SW2 0x20
-#define CS16_SW2 0x21
-#define CS17_SW2 0x22
-#define CS18_SW2 0x23
-#define CS1_SW3 0x24
-#define CS2_SW3 0x25
-#define CS3_SW3 0x26
-#define CS4_SW3 0x27
-#define CS5_SW3 0x28
-#define CS6_SW3 0x29
-#define CS7_SW3 0x2A
-#define CS8_SW3 0x2B
-#define CS9_SW3 0x2C
-#define CS10_SW3 0x2D
-#define CS11_SW3 0x2E
-#define CS12_SW3 0x2F
-#define CS13_SW3 0x30
-#define CS14_SW3 0x31
-#define CS15_SW3 0x32
-#define CS16_SW3 0x33
-#define CS17_SW3 0x34
-#define CS18_SW3 0x35
-#define CS1_SW4 0x36
-#define CS2_SW4 0x37
-#define CS3_SW4 0x38
-#define CS4_SW4 0x39
-#define CS5_SW4 0x3A
-#define CS6_SW4 0x3B
-#define CS7_SW4 0x3C
-#define CS8_SW4 0x3D
-#define CS9_SW4 0x3E
-#define CS10_SW4 0x3F
-#define CS11_SW4 0x40
-#define CS12_SW4 0x41
-#define CS13_SW4 0x42
-#define CS14_SW4 0x43
-#define CS15_SW4 0x44
-#define CS16_SW4 0x45
-#define CS17_SW4 0x46
-#define CS18_SW4 0x47
-#define CS1_SW5 0x48
-#define CS2_SW5 0x49
-#define CS3_SW5 0x4A
-#define CS4_SW5 0x4B
-#define CS5_SW5 0x4C
-#define CS6_SW5 0x4D
-#define CS7_SW5 0x4E
-#define CS8_SW5 0x4F
-#define CS9_SW5 0x50
-#define CS10_SW5 0x51
-#define CS11_SW5 0x52
-#define CS12_SW5 0x53
-#define CS13_SW5 0x54
-#define CS14_SW5 0x55
-#define CS15_SW5 0x56
-#define CS16_SW5 0x57
-#define CS17_SW5 0x58
-#define CS18_SW5 0x59
-#define CS1_SW6 0x5A
-#define CS2_SW6 0x5B
-#define CS3_SW6 0x5C
-#define CS4_SW6 0x5D
-#define CS5_SW6 0x5E
-#define CS6_SW6 0x5F
-#define CS7_SW6 0x60
-#define CS8_SW6 0x61
-#define CS9_SW6 0x62
-#define CS10_SW6 0x63
-#define CS11_SW6 0x64
-#define CS12_SW6 0x65
-#define CS13_SW6 0x66
-#define CS14_SW6 0x67
-#define CS15_SW6 0x68
-#define CS16_SW6 0x69
-#define CS17_SW6 0x6A
-#define CS18_SW6 0x6B
-#define CS1_SW7 0x6C
-#define CS2_SW7 0x6D
-#define CS3_SW7 0x6E
-#define CS4_SW7 0x6F
-#define CS5_SW7 0x70
-#define CS6_SW7 0x71
-#define CS7_SW7 0x72
-#define CS8_SW7 0x73
-#define CS9_SW7 0x74
-#define CS10_SW7 0x75
-#define CS11_SW7 0x76
-#define CS12_SW7 0x77
-#define CS13_SW7 0x78
-#define CS14_SW7 0x79
-#define CS15_SW7 0x7A
-#define CS16_SW7 0x7B
-#define CS17_SW7 0x7C
-#define CS18_SW7 0x7D
-#define CS1_SW8 0x7E
-#define CS2_SW8 0x7F
-#define CS3_SW8 0x80
-#define CS4_SW8 0x81
-#define CS5_SW8 0x82
-#define CS6_SW8 0x83
-#define CS7_SW8 0x84
-#define CS8_SW8 0x85
-#define CS9_SW8 0x86
-#define CS10_SW8 0x87
-#define CS11_SW8 0x88
-#define CS12_SW8 0x89
-#define CS13_SW8 0x8A
-#define CS14_SW8 0x8B
-#define CS15_SW8 0x8C
-#define CS16_SW8 0x8D
-#define CS17_SW8 0x8E
-#define CS18_SW8 0x8F
-#define CS1_SW9 0x90
-#define CS2_SW9 0x91
-#define CS3_SW9 0x92
-#define CS4_SW9 0x93
-#define CS5_SW9 0x94
-#define CS6_SW9 0x95
-#define CS7_SW9 0x96
-#define CS8_SW9 0x97
-#define CS9_SW9 0x98
-#define CS10_SW9 0x99
-#define CS11_SW9 0x9A
-#define CS12_SW9 0x9B
-#define CS13_SW9 0x9C
-#define CS14_SW9 0x9D
-#define CS15_SW9 0x9E
-#define CS16_SW9 0x9F
-#define CS17_SW9 0xA0
-#define CS18_SW9 0xA1
-#define CS1_SW10 0xA2
-#define CS2_SW10 0xA3
-#define CS3_SW10 0xA4
-#define CS4_SW10 0xA5
-#define CS5_SW10 0xA6
-#define CS6_SW10 0xA7
-#define CS7_SW10 0xA8
-#define CS8_SW10 0xA9
-#define CS9_SW10 0xAA
-#define CS10_SW10 0xAB
-#define CS11_SW10 0xAC
-#define CS12_SW10 0xAD
-#define CS13_SW10 0xAE
-#define CS14_SW10 0xAF
-#define CS15_SW10 0xB0
-#define CS16_SW10 0xB1
-#define CS17_SW10 0xB2
-#define CS18_SW10 0xB3
-#define CS1_SW11 0xB4
-#define CS2_SW11 0xB5
-#define CS3_SW11 0xB6
-#define CS4_SW11 0xB7
-#define CS5_SW11 0xB8
-#define CS6_SW11 0xB9
-#define CS7_SW11 0xBA
-#define CS8_SW11 0xBB
-#define CS9_SW11 0xBC
-#define CS10_SW11 0xBD
-#define CS11_SW11 0xBE
-#define CS12_SW11 0xBF
-#define CS13_SW11 0xC0
-#define CS14_SW11 0xC1
-#define CS15_SW11 0xC2
-#define CS16_SW11 0xC3
-#define CS17_SW11 0xC4
-#define CS18_SW11 0xC5
-#define CS1_SW12 0xC6
-#define CS2_SW12 0xC7
-#define CS3_SW12 0xC8
-#define CS4_SW12 0xC9
-#define CS5_SW12 0xCA
-#define CS6_SW12 0xCB
-#define CS7_SW12 0xCC
-#define CS8_SW12 0xCD
-#define CS9_SW12 0xCE
-#define CS10_SW12 0xCF
-#define CS11_SW12 0xD0
-#define CS12_SW12 0xD1
-#define CS13_SW12 0xD2
-#define CS14_SW12 0xD3
-#define CS15_SW12 0xD4
-#define CS16_SW12 0xD5
-#define CS17_SW12 0xD6
-#define CS18_SW12 0xD7
--- a/drivers/led/aw20216s.c
+++ b/drivers/led/aw20216s.c
@ -0,0 +1,161 @@
+/* Copyright 2021 Jasper Chan
+ *           2023 Huckies <https://github.com/Huckies>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "aw20216s.h"
+#include "wait.h"
+#include "spi_master.h"
+
+#define AW20216S_PWM_REGISTER_COUNT 216
+
+#ifndef AW20216S_CONFIGURATION
+#    define AW20216S_CONFIGURATION (AW20216S_CONFIGURATION_SWSEL_1_12 | AW20216S_CONFIGURATION_CHIPEN)
+#endif
+
+#ifndef AW20216S_MIX_FUNCTION
+#    define AW20216S_MIX_FUNCTION (AW20216S_MIX_FUNCTION_LPEN)
+#endif
+
+#ifndef AW20216S_SCALING_MAX
+#    define AW20216S_SCALING_MAX 150
+#endif
+
+#ifndef AW20216S_GLOBAL_CURRENT_MAX
+#    define AW20216S_GLOBAL_CURRENT_MAX 150
+#endif
+
+#ifndef AW20216S_SPI_MODE
+#    define AW20216S_SPI_MODE 0
+#endif
+
+#ifndef AW20216S_SPI_DIVISOR
+#    define AW20216S_SPI_DIVISOR 4
+#endif
+
+uint8_t g_pwm_buffer[AW20216S_DRIVER_COUNT][AW20216S_PWM_REGISTER_COUNT];
+bool    g_pwm_buffer_update_required[AW20216S_DRIVER_COUNT] = {false};
+
+bool aw20216s_write(pin_t cs_pin, uint8_t page, uint8_t reg, uint8_t* data, uint8_t len) {
+    static uint8_t s_spi_transfer_buffer[2] = {0};
+
+    if (!spi_start(cs_pin, false, AW20216S_SPI_MODE, AW20216S_SPI_DIVISOR)) {
+        spi_stop();
+        return false;
+    }
+
+    s_spi_transfer_buffer[0] = (AW20216S_ID | page | AW20216S_WRITE);
+    s_spi_transfer_buffer[1] = reg;
+
+    if (spi_transmit(s_spi_transfer_buffer, 2) != SPI_STATUS_SUCCESS) {
+        spi_stop();
+        return false;
+    }
+
+    if (spi_transmit(data, len) != SPI_STATUS_SUCCESS) {
+        spi_stop();
+        return false;
+    }
+
+    spi_stop();
+    return true;
+}
+
+static inline bool aw20216s_write_register(pin_t cs_pin, uint8_t page, uint8_t reg, uint8_t value) {
+    // Little wrapper so callers need not care about sending a buffer
+    return aw20216s_write(cs_pin, page, reg, &value, 1);
+}
+
+void aw20216s_soft_reset(pin_t cs_pin) {
+    aw20216s_write_register(cs_pin, AW20216S_PAGE_FUNCTION, AW20216S_FUNCTION_REG_RESET, AW20216S_RESET_MAGIC);
+}
+
+static void aw20216s_init_scaling(pin_t cs_pin) {
+    // Set constant current to the max, control brightness with PWM
+    for (uint8_t i = 0; i < AW20216S_PWM_REGISTER_COUNT; i++) {
+        aw20216s_write_register(cs_pin, AW20216S_PAGE_SCALING, i, AW20216S_SCALING_MAX);
+    }
+}
+
+static inline void aw20216s_init_current_limit(pin_t cs_pin) {
+    // Push config
+    aw20216s_write_register(cs_pin, AW20216S_PAGE_FUNCTION, AW20216S_FUNCTION_REG_GLOBAL_CURRENT, AW20216S_GLOBAL_CURRENT_MAX);
+}
+
+static inline void aw20216s_soft_enable(pin_t cs_pin) {
+    // Push config
+    aw20216s_write_register(cs_pin, AW20216S_PAGE_FUNCTION, AW20216S_FUNCTION_REG_CONFIGURATION, AW20216S_CONFIGURATION);
+}
+
+static inline void aw20216s_auto_lowpower(pin_t cs_pin) {
+    aw20216s_write_register(cs_pin, AW20216S_PAGE_FUNCTION, AW20216S_FUNCTION_REG_MIX_FUNCTION, AW20216S_MIX_FUNCTION);
+}
+
+void aw20216s_init_drivers(void) {
+    spi_init();
+
+    aw20216s_init(AW20216S_CS_PIN_1, AW20216S_EN_PIN_1);
+#if defined(AW20216S_CS_PIN_2)
+    aw20216s_init(AW20216S_CS_PIN_2, AW20216S_EN_PIN_2);
+#endif
+}
+
+void aw20216s_init(pin_t cs_pin, pin_t en_pin) {
+    setPinOutput(en_pin);
+    writePinHigh(en_pin);
+
+    aw20216s_soft_reset(cs_pin);
+    wait_ms(2);
+
+    // Drivers should start with all scaling and PWM registers as off
+    aw20216s_init_current_limit(cs_pin);
+    aw20216s_init_scaling(cs_pin);
+
+    aw20216s_soft_enable(cs_pin);
+    aw20216s_auto_lowpower(cs_pin);
+}
+
+void aw20216s_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
+    aw20216s_led_t led;
+    memcpy_P(&led, (&g_aw20216s_leds[index]), sizeof(led));
+
+    if (g_pwm_buffer[led.driver][led.r] == red && g_pwm_buffer[led.driver][led.g] == green && g_pwm_buffer[led.driver][led.b] == blue) {
+        return;
+    }
+    g_pwm_buffer[led.driver][led.r]          = red;
+    g_pwm_buffer[led.driver][led.g]          = green;
+    g_pwm_buffer[led.driver][led.b]          = blue;
+    g_pwm_buffer_update_required[led.driver] = true;
+}
+
+void aw20216s_set_color_all(uint8_t red, uint8_t green, uint8_t blue) {
+    for (uint8_t i = 0; i < AW20216S_LED_COUNT; i++) {
+        aw20216s_set_color(i, red, green, blue);
+    }
+}
+
+void aw20216s_update_pwm_buffers(pin_t cs_pin, uint8_t index) {
+    if (g_pwm_buffer_update_required[index]) {
+        aw20216s_write(cs_pin, AW20216S_PAGE_PWM, 0, g_pwm_buffer[index], AW20216S_PWM_REGISTER_COUNT);
+    }
+    g_pwm_buffer_update_required[index] = false;
+}
+
+void aw20216s_flush(void) {
+    aw20216s_update_pwm_buffers(AW20216S_CS_PIN_1, 0);
+#if defined(AW20216S_CS_PIN_2)
+    aw20216s_update_pwm_buffers(AW20216S_CS_PIN_2, 1);
+#endif
+}
--- a/drivers/led/aw20216s.h
+++ b/drivers/led/aw20216s.h
@ -0,0 +1,319 @@
+/* Copyright 2021 Jasper Chan (Gigahawk)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "progmem.h"
+#include "gpio.h"
+#include "util.h"
+
+// ======== DEPRECATED DEFINES - DO NOT USE ========
+#ifdef AW_SCALING_MAX
+#    define AW20216S_SCALING_MAX AW_SCALING_MAX
+#endif
+#ifdef AW_GLOBAL_CURRENT_MAX
+#    define AW20216S_GLOBAL_CURRENT_MAX AW_GLOBAL_CURRENT_MAX
+#endif
+#ifdef AW_SPI_MODE
+#    define AW20216S_SPI_MODE AW_SPI_MODE
+#endif
+#ifdef AW_SPI_DIVISOR
+#    define AW20216S_SPI_DIVISOR AW_SPI_DIVISOR
+#endif
+#ifdef DRIVER_1_CS
+#    define AW20216S_CS_PIN_1 DRIVER_1_CS
+#endif
+#ifdef DRIVER_2_CS
+#    define AW20216S_CS_PIN_2 DRIVER_2_CS
+#endif
+#ifdef DRIVER_1_EN
+#    define AW20216S_EN_PIN_1 DRIVER_1_EN
+#endif
+#ifdef DRIVER_2_EN
+#    define AW20216S_EN_PIN_2 DRIVER_2_EN
+#endif
+
+#define aw_led aw20216s_led_t
+#define g_aw_leds g_aw20216s_leds
+// ========
+
+#define AW20216S_ID (0b1010 << 4)
+#define AW20216S_WRITE 0
+#define AW20216S_READ 1
+
+#define AW20216S_PAGE_FUNCTION (0x00 << 1)
+#define AW20216S_PAGE_PWM (0x01 << 1)
+#define AW20216S_PAGE_SCALING (0x02 << 1)
+#define AW20216S_PAGE_PATTERN_CHOICE (0x03 << 1)
+#define AW20216S_PAGE_PWM_SCALING (0x04 << 1)
+
+#define AW20216S_FUNCTION_REG_CONFIGURATION 0x00
+#define AW20216S_CONFIGURATION_SWSEL_1_12 (0b1011 << 4)
+#define AW20216S_CONFIGURATION_CHIPEN (0b1 << 0)
+
+#define AW20216S_FUNCTION_REG_GLOBAL_CURRENT 0x01
+
+#define AW20216S_FUNCTION_REG_RESET 0x2F
+#define AW20216S_RESET_MAGIC 0xAE
+
+#define AW20216S_FUNCTION_REG_MIX_FUNCTION 0x46
+#define AW20216S_MIX_FUNCTION_LPEN (0b1 << 1)
+
+#if defined(RGB_MATRIX_AW20216S)
+#    define AW20216S_LED_COUNT RGB_MATRIX_LED_COUNT
+#endif
+
+#if defined(AW20216S_CS_PIN_2)
+#    define AW20216S_DRIVER_COUNT 2
+#elif defined(AW20216S_CS_PIN_1)
+#    define AW20216S_DRIVER_COUNT 1
+#endif
+
+typedef struct aw20216s_led_t {
+    uint8_t driver : 2;
+    uint8_t r;
+    uint8_t g;
+    uint8_t b;
+} PACKED aw20216s_led_t;
+
+extern const aw20216s_led_t PROGMEM g_aw20216s_leds[AW20216S_LED_COUNT];
+
+void aw20216s_init_drivers(void);
+void aw20216s_init(pin_t cs_pin, pin_t en_pin);
+void aw20216s_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);
+void aw20216s_set_color_all(uint8_t red, uint8_t green, uint8_t blue);
+void aw20216s_update_pwm_buffers(pin_t cs_pin, uint8_t index);
+
+void aw20216s_flush(void);
+
+#define CS1_SW1 0x00
+#define CS2_SW1 0x01
+#define CS3_SW1 0x02
+#define CS4_SW1 0x03
+#define CS5_SW1 0x04
+#define CS6_SW1 0x05
+#define CS7_SW1 0x06
+#define CS8_SW1 0x07
+#define CS9_SW1 0x08
+#define CS10_SW1 0x09
+#define CS11_SW1 0x0A
+#define CS12_SW1 0x0B
+#define CS13_SW1 0x0C
+#define CS14_SW1 0x0D
+#define CS15_SW1 0x0E
+#define CS16_SW1 0x0F
+#define CS17_SW1 0x10
+#define CS18_SW1 0x11
+#define CS1_SW2 0x12
+#define CS2_SW2 0x13
+#define CS3_SW2 0x14
+#define CS4_SW2 0x15
+#define CS5_SW2 0x16
+#define CS6_SW2 0x17
+#define CS7_SW2 0x18
+#define CS8_SW2 0x19
+#define CS9_SW2 0x1A
+#define CS10_SW2 0x1B
+#define CS11_SW2 0x1C
+#define CS12_SW2 0x1D
+#define CS13_SW2 0x1E
+#define CS14_SW2 0x1F
+#define CS15_SW2 0x20
+#define CS16_SW2 0x21
+#define CS17_SW2 0x22
+#define CS18_SW2 0x23
+#define CS1_SW3 0x24
+#define CS2_SW3 0x25
+#define CS3_SW3 0x26
+#define CS4_SW3 0x27
+#define CS5_SW3 0x28
+#define CS6_SW3 0x29
+#define CS7_SW3 0x2A
+#define CS8_SW3 0x2B
+#define CS9_SW3 0x2C
+#define CS10_SW3 0x2D
+#define CS11_SW3 0x2E
+#define CS12_SW3 0x2F
+#define CS13_SW3 0x30
+#define CS14_SW3 0x31
+#define CS15_SW3 0x32
+#define CS16_SW3 0x33
+#define CS17_SW3 0x34
+#define CS18_SW3 0x35
+#define CS1_SW4 0x36
+#define CS2_SW4 0x37
+#define CS3_SW4 0x38
+#define CS4_SW4 0x39
+#define CS5_SW4 0x3A
+#define CS6_SW4 0x3B
+#define CS7_SW4 0x3C
+#define CS8_SW4 0x3D
+#define CS9_SW4 0x3E
+#define CS10_SW4 0x3F
+#define CS11_SW4 0x40
+#define CS12_SW4 0x41
+#define CS13_SW4 0x42
+#define CS14_SW4 0x43
+#define CS15_SW4 0x44
+#define CS16_SW4 0x45
+#define CS17_SW4 0x46
+#define CS18_SW4 0x47
+#define CS1_SW5 0x48
+#define CS2_SW5 0x49
+#define CS3_SW5 0x4A
+#define CS4_SW5 0x4B
+#define CS5_SW5 0x4C
+#define CS6_SW5 0x4D
+#define CS7_SW5 0x4E
+#define CS8_SW5 0x4F
+#define CS9_SW5 0x50
+#define CS10_SW5 0x51
+#define CS11_SW5 0x52
+#define CS12_SW5 0x53
+#define CS13_SW5 0x54
+#define CS14_SW5 0x55
+#define CS15_SW5 0x56
+#define CS16_SW5 0x57
+#define CS17_SW5 0x58
+#define CS18_SW5 0x59
+#define CS1_SW6 0x5A
+#define CS2_SW6 0x5B
+#define CS3_SW6 0x5C
+#define CS4_SW6 0x5D
+#define CS5_SW6 0x5E
+#define CS6_SW6 0x5F
+#define CS7_SW6 0x60
+#define CS8_SW6 0x61
+#define CS9_SW6 0x62
+#define CS10_SW6 0x63
+#define CS11_SW6 0x64
+#define CS12_SW6 0x65
+#define CS13_SW6 0x66
+#define CS14_SW6 0x67
+#define CS15_SW6 0x68
+#define CS16_SW6 0x69
+#define CS17_SW6 0x6A
+#define CS18_SW6 0x6B
+#define CS1_SW7 0x6C
+#define CS2_SW7 0x6D
+#define CS3_SW7 0x6E
+#define CS4_SW7 0x6F
+#define CS5_SW7 0x70
+#define CS6_SW7 0x71
+#define CS7_SW7 0x72
+#define CS8_SW7 0x73
+#define CS9_SW7 0x74
+#define CS10_SW7 0x75
+#define CS11_SW7 0x76
+#define CS12_SW7 0x77
+#define CS13_SW7 0x78
+#define CS14_SW7 0x79
+#define CS15_SW7 0x7A
+#define CS16_SW7 0x7B
+#define CS17_SW7 0x7C
+#define CS18_SW7 0x7D
+#define CS1_SW8 0x7E
+#define CS2_SW8 0x7F
+#define CS3_SW8 0x80
+#define CS4_SW8 0x81
+#define CS5_SW8 0x82
+#define CS6_SW8 0x83
+#define CS7_SW8 0x84
+#define CS8_SW8 0x85
+#define CS9_SW8 0x86
+#define CS10_SW8 0x87
+#define CS11_SW8 0x88
+#define CS12_SW8 0x89
+#define CS13_SW8 0x8A
+#define CS14_SW8 0x8B
+#define CS15_SW8 0x8C
+#define CS16_SW8 0x8D
+#define CS17_SW8 0x8E
+#define CS18_SW8 0x8F
+#define CS1_SW9 0x90
+#define CS2_SW9 0x91
+#define CS3_SW9 0x92
+#define CS4_SW9 0x93
+#define CS5_SW9 0x94
+#define CS6_SW9 0x95
+#define CS7_SW9 0x96
+#define CS8_SW9 0x97
+#define CS9_SW9 0x98
+#define CS10_SW9 0x99
+#define CS11_SW9 0x9A
+#define CS12_SW9 0x9B
+#define CS13_SW9 0x9C
+#define CS14_SW9 0x9D
+#define CS15_SW9 0x9E
+#define CS16_SW9 0x9F
+#define CS17_SW9 0xA0
+#define CS18_SW9 0xA1
+#define CS1_SW10 0xA2
+#define CS2_SW10 0xA3
+#define CS3_SW10 0xA4
+#define CS4_SW10 0xA5
+#define CS5_SW10 0xA6
+#define CS6_SW10 0xA7
+#define CS7_SW10 0xA8
+#define CS8_SW10 0xA9
+#define CS9_SW10 0xAA
+#define CS10_SW10 0xAB
+#define CS11_SW10 0xAC
+#define CS12_SW10 0xAD
+#define CS13_SW10 0xAE
+#define CS14_SW10 0xAF
+#define CS15_SW10 0xB0
+#define CS16_SW10 0xB1
+#define CS17_SW10 0xB2
+#define CS18_SW10 0xB3
+#define CS1_SW11 0xB4
+#define CS2_SW11 0xB5
+#define CS3_SW11 0xB6
+#define CS4_SW11 0xB7
+#define CS5_SW11 0xB8
+#define CS6_SW11 0xB9
+#define CS7_SW11 0xBA
+#define CS8_SW11 0xBB
+#define CS9_SW11 0xBC
+#define CS10_SW11 0xBD
+#define CS11_SW11 0xBE
+#define CS12_SW11 0xBF
+#define CS13_SW11 0xC0
+#define CS14_SW11 0xC1
+#define CS15_SW11 0xC2
+#define CS16_SW11 0xC3
+#define CS17_SW11 0xC4
+#define CS18_SW11 0xC5
+#define CS1_SW12 0xC6
+#define CS2_SW12 0xC7
+#define CS3_SW12 0xC8
+#define CS4_SW12 0xC9
+#define CS5_SW12 0xCA
+#define CS6_SW12 0xCB
+#define CS7_SW12 0xCC
+#define CS8_SW12 0xCD
+#define CS9_SW12 0xCE
+#define CS10_SW12 0xCF
+#define CS11_SW12 0xD0
+#define CS12_SW12 0xD1
+#define CS13_SW12 0xD2
+#define CS14_SW12 0xD3
+#define CS15_SW12 0xD4
+#define CS16_SW12 0xD5
+#define CS17_SW12 0xD6
+#define CS18_SW12 0xD7
--- a/drivers/led/ckled2001-simple.c
+++ b/drivers/led/ckled2001-simple.c
@ -1,221 +0,0 @@
-/* Copyright 2021 @ Keychron (https://www.keychron.com)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "ckled2001-simple.h"
-#include "i2c_master.h"
-#include "wait.h"
-
-#ifndef CKLED2001_TIMEOUT
-#    define CKLED2001_TIMEOUT 100
-#endif
-
-#ifndef CKLED2001_PERSISTENCE
-#    define CKLED2001_PERSISTENCE 0
-#endif
-
-#ifndef PHASE_CHANNEL
-#    define PHASE_CHANNEL MSKPHASE_12CHANNEL
-#endif
-
-#ifndef CKLED2001_CURRENT_TUNE
-#    define CKLED2001_CURRENT_TUNE \
-        { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }
-#endif
-
-// Transfer buffer for TWITransmitData()
-uint8_t g_twi_transfer_buffer[20];
-
-// These buffers match the CKLED2001 PWM registers.
-// The control buffers match the PG0 LED On/Off registers.
-// Storing them like this is optimal for I2C transfers to the registers.
-// We could optimize this and take out the unused registers from these
-// buffers and the transfers in ckled2001_write_pwm_buffer() but it's
-// probably not worth the extra complexity.
-uint8_t g_pwm_buffer[DRIVER_COUNT][192];
-bool    g_pwm_buffer_update_required[DRIVER_COUNT] = {false};
-
-uint8_t g_led_control_registers[DRIVER_COUNT][24]             = {0};
-bool    g_led_control_registers_update_required[DRIVER_COUNT] = {false};
-
-bool ckled2001_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
-    // If the transaction fails function returns false.
-    g_twi_transfer_buffer[0] = reg;
-    g_twi_transfer_buffer[1] = data;
-
-#if CKLED2001_PERSISTENCE > 0
-    for (uint8_t i = 0; i < CKLED2001_PERSISTENCE; i++) {
-        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, CKLED2001_TIMEOUT) != 0) {
-            return false;
-        }
-    }
-#else
-    if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, CKLED2001_TIMEOUT) != 0) {
-        return false;
-    }
-#endif
-    return true;
-}
-
-bool ckled2001_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
-    // Assumes PG1 is already selected.
-    // If any of the transactions fails function returns false.
-    // Transmit PWM registers in 12 transfers of 16 bytes.
-    // g_twi_transfer_buffer[] is 20 bytes
-
-    // Iterate over the pwm_buffer contents at 16 byte intervals.
-    for (int i = 0; i < 192; i += 16) {
-        g_twi_transfer_buffer[0] = i;
-        // Copy the data from i to i+15.
-        // Device will auto-increment register for data after the first byte
-        // Thus this sets registers 0x00-0x0F, 0x10-0x1F, etc. in one transfer.
-        for (int j = 0; j < 16; j++) {
-            g_twi_transfer_buffer[1 + j] = pwm_buffer[i + j];
-        }
-
-#if CKLED2001_PERSISTENCE > 0
-        for (uint8_t i = 0; i < CKLED2001_PERSISTENCE; i++) {
-            if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, CKLED2001_TIMEOUT) != 0) {
-                return false;
-            }
-        }
-#else
-        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, CKLED2001_TIMEOUT) != 0) {
-            return false;
-        }
-#endif
-    }
-    return true;
-}
-
-void ckled2001_init(uint8_t addr) {
-    // Select to function page
-    ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, FUNCTION_PAGE);
-    // Setting LED driver to shutdown mode
-    ckled2001_write_register(addr, CONFIGURATION_REG, MSKSW_SHUT_DOWN_MODE);
-    // Setting internal channel pulldown/pullup
-    ckled2001_write_register(addr, PDU_REG, MSKSET_CA_CB_CHANNEL);
-    // Select number of scan phase
-    ckled2001_write_register(addr, SCAN_PHASE_REG, PHASE_CHANNEL);
-    // Setting PWM Delay Phase
-    ckled2001_write_register(addr, SLEW_RATE_CONTROL_MODE1_REG, MSKPWM_DELAY_PHASE_ENABLE);
-    // Setting Driving/Sinking Channel Slew Rate
-    ckled2001_write_register(addr, SLEW_RATE_CONTROL_MODE2_REG, MSKDRIVING_SINKING_CHHANNEL_SLEWRATE_ENABLE);
-    // Setting Iref
-    ckled2001_write_register(addr, SOFTWARE_SLEEP_REG, MSKSLEEP_DISABLE);
-    // Set LED CONTROL PAGE (Page 0)
-    ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, LED_CONTROL_PAGE);
-    for (int i = 0; i < LED_CONTROL_ON_OFF_LENGTH; i++) {
-        ckled2001_write_register(addr, i, 0x00);
-    }
-
-    // Set PWM PAGE (Page 1)
-    ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, LED_PWM_PAGE);
-    for (int i = 0; i < LED_CURRENT_TUNE_LENGTH; i++) {
-        ckled2001_write_register(addr, i, 0x00);
-    }
-
-    // Set CURRENT PAGE (Page 4)
-    uint8_t current_tuen_reg_list[LED_CURRENT_TUNE_LENGTH] = CKLED2001_CURRENT_TUNE;
-    ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, CURRENT_TUNE_PAGE);
-    for (int i = 0; i < LED_CURRENT_TUNE_LENGTH; i++) {
-        ckled2001_write_register(addr, i, current_tuen_reg_list[i]);
-    }
-
-    // Enable LEDs ON/OFF
-    ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, LED_CONTROL_PAGE);
-    for (int i = 0; i < LED_CONTROL_ON_OFF_LENGTH; i++) {
-        ckled2001_write_register(addr, i, 0xFF);
-    }
-
-    // Select to function page
-    ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, FUNCTION_PAGE);
-    // Setting LED driver to normal mode
-    ckled2001_write_register(addr, CONFIGURATION_REG, MSKSW_NORMAL_MODE);
-}
-
-void ckled2001_set_value(int index, uint8_t value) {
-    ckled2001_led led;
-    if (index >= 0 && index < LED_MATRIX_LED_COUNT) {
-        memcpy_P(&led, (&g_ckled2001_leds[index]), sizeof(led));
-
-        if (g_pwm_buffer[led.driver][led.v] == value) {
-            return;
-        }
-        g_pwm_buffer[led.driver][led.v]          = value;
-        g_pwm_buffer_update_required[led.driver] = true;
-    }
-}
-
-void ckled2001_set_value_all(uint8_t value) {
-    for (int i = 0; i < LED_MATRIX_LED_COUNT; i++) {
-        ckled2001_set_value(i, value);
-    }
-}
-
-void ckled2001_set_led_control_register(uint8_t index, bool value) {
-    ckled2001_led led;
-    memcpy_P(&led, (&g_ckled2001_leds[index]), sizeof(led));
-
-    uint8_t control_register = led.v / 8;
-    uint8_t bit_value        = led.v % 8;
-
-    if (value) {
-        g_led_control_registers[led.driver][control_register] |= (1 << bit_value);
-    } else {
-        g_led_control_registers[led.driver][control_register] &= ~(1 << bit_value);
-    }
-
-    g_led_control_registers_update_required[led.driver] = true;
-}
-
-void ckled2001_update_pwm_buffers(uint8_t addr, uint8_t index) {
-    if (g_pwm_buffer_update_required[index]) {
-        ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, LED_PWM_PAGE);
-
-        // If any of the transactions fail we risk writing dirty PG0,
-        // refresh page 0 just in case.
-        if (!ckled2001_write_pwm_buffer(addr, g_pwm_buffer[index])) {
-            g_led_control_registers_update_required[index] = true;
-        }
-    }
-    g_pwm_buffer_update_required[index] = false;
-}
-
-void ckled2001_update_led_control_registers(uint8_t addr, uint8_t index) {
-    if (g_led_control_registers_update_required[index]) {
-        ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, LED_CONTROL_PAGE);
-        for (int i = 0; i < 24; i++) {
-            ckled2001_write_register(addr, i, g_led_control_registers[index][i]);
-        }
-    }
-    g_led_control_registers_update_required[index] = false;
-}
-
-void ckled2001_sw_return_normal(uint8_t addr) {
-    // Select to function page
-    ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, FUNCTION_PAGE);
-    // Setting LED driver to normal mode
-    ckled2001_write_register(addr, CONFIGURATION_REG, MSKSW_NORMAL_MODE);
-}
-
-void ckled2001_sw_shutdown(uint8_t addr) {
-    // Select to function page
-    ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, FUNCTION_PAGE);
-    // Setting LED driver to shutdown mode
-    ckled2001_write_register(addr, CONFIGURATION_REG, MSKSW_SHUT_DOWN_MODE);
-    // Write SW Sleep Register
-    ckled2001_write_register(addr, SOFTWARE_SLEEP_REG, MSKSLEEP_ENABLE);
-}
--- a/drivers/led/ckled2001-simple.h
+++ b/drivers/led/ckled2001-simple.h
@ -1,337 +0,0 @@
-/* Copyright 2021 @ Keychron (https://www.keychron.com)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#pragma once
-
-#include <stdint.h>
-#include <stdbool.h>
-#include "progmem.h"
-
-typedef struct ckled2001_led {
-    uint8_t driver : 2;
-    uint8_t v;
-} __attribute__((packed)) ckled2001_led;
-
-extern const ckled2001_led PROGMEM g_ckled2001_leds[LED_MATRIX_LED_COUNT];
-
-void ckled2001_init(uint8_t addr);
-bool ckled2001_write_register(uint8_t addr, uint8_t reg, uint8_t data);
-bool ckled2001_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
-
-void ckled2001_set_value(int index, uint8_t value);
-void ckled2001_set_value_all(uint8_t value);
-
-void ckled2001_set_led_control_register(uint8_t index, bool value);
-
-// This should not be called from an interrupt
-// (eg. from a timer interrupt).
-// Call this while idle (in between matrix scans).
-// If the buffer is dirty, it will update the driver with the buffer.
-void ckled2001_update_pwm_buffers(uint8_t addr, uint8_t index);
-void ckled2001_update_led_control_registers(uint8_t addr, uint8_t index);
-
-void ckled2001_sw_return_normal(uint8_t addr);
-void ckled2001_sw_shutdown(uint8_t addr);
-
-// Registers Page Define
-#define CONFIGURE_CMD_PAGE 0xFD
-#define LED_CONTROL_PAGE 0x00
-#define LED_PWM_PAGE 0x01
-#define FUNCTION_PAGE 0x03
-#define CURRENT_TUNE_PAGE 0x04
-
-// Function Register: address 0x00
-#define CONFIGURATION_REG 0x00
-#define MSKSW_SHUT_DOWN_MODE (0x0 << 0)
-#define MSKSW_NORMAL_MODE (0x1 << 0)
-
-#define DRIVER_ID_REG 0x11
-#define CKLED2001_ID 0x8A
-
-#define PDU_REG 0x13
-#define MSKSET_CA_CB_CHANNEL 0xAA
-#define MSKCLR_CA_CB_CHANNEL 0x00
-
-#define SCAN_PHASE_REG 0x14
-#define MSKPHASE_12CHANNEL 0x00
-#define MSKPHASE_11CHANNEL 0x01
-#define MSKPHASE_10CHANNEL 0x02
-#define MSKPHASE_9CHANNEL 0x03
-#define MSKPHASE_8CHANNEL 0x04
-#define MSKPHASE_7CHANNEL 0x05
-#define MSKPHASE_6CHANNEL 0x06
-#define MSKPHASE_5CHANNEL 0x07
-#define MSKPHASE_4CHANNEL 0x08
-#define MSKPHASE_3CHANNEL 0x09
-#define MSKPHASE_2CHANNEL 0x0A
-#define MSKPHASE_1CHANNEL 0x0B
-
-#define SLEW_RATE_CONTROL_MODE1_REG 0x15
-#define MSKPWM_DELAY_PHASE_ENABLE 0x04
-#define MSKPWM_DELAY_PHASE_DISABLE 0x00
-
-#define SLEW_RATE_CONTROL_MODE2_REG 0x16
-#define MSKDRIVING_SINKING_CHHANNEL_SLEWRATE_ENABLE 0xC0
-#define MSKDRIVING_SINKING_CHHANNEL_SLEWRATE_DISABLE 0x00
-
-#define OPEN_SHORT_ENABLE_REG 0x17
-#define MSKOPEN_DETECTION_ENABLE (0x01 << 7)
-#define MSKOPEN_DETECTION_DISABLE (0x00)
-
-#define MSKSHORT_DETECTION_ENABLE (0x01 << 6)
-#define MSKSHORT_DETECTION_DISABLE (0x00)
-
-#define OPEN_SHORT_DUTY_REG 0x18
-#define OPEN_SHORT_FLAG_REG 0x19
-
-#define MSKOPEN_DETECTION_INTERRUPT_ENABLE (0x01 << 7)
-#define MSKOPEN_DETECTION_INTERRUPT_DISABLE (0x00)
-
-#define MSKSHORT_DETECTION_INTERRUPT_ENABLE (0x01 << 6)
-#define MSKSHORT_DETECTION_INTERRUPT_DISABLE (0x00)
-
-#define SOFTWARE_SLEEP_REG 0x1A
-#define MSKSLEEP_ENABLE 0x02
-#define MSKSLEEP_DISABLE 0x00
-
-// LED Control Registers
-#define LED_CONTROL_ON_OFF_FIRST_ADDR 0x0
-#define LED_CONTROL_ON_OFF_LAST_ADDR 0x17
-#define LED_CONTROL_ON_OFF_LENGTH ((LED_CONTROL_ON_OFF_LAST_ADDR - LED_CONTROL_ON_OFF_FIRST_ADDR) + 1)
-
-#define LED_CONTROL_OPEN_FIRST_ADDR 0x18
-#define LED_CONTROL_OPEN_LAST_ADDR 0x2F
-#define LED_CONTROL_OPEN_LENGTH ((LED_CONTROL_OPEN_LAST_ADDR - LED_CONTROL_OPEN_FIRST_ADDR) + 1)
-
-#define LED_CONTROL_SHORT_FIRST_ADDR 0x30
-#define LED_CONTROL_SHORT_LAST_ADDR 0x47
-#define LED_CONTROL_SHORT_LENGTH ((LED_CONTROL_SHORT_LAST_ADDR - LED_CONTROL_SHORT_FIRST_ADDR) + 1)
-
-#define LED_CONTROL_PAGE_LENGTH 0x48
-
-// LED Control Registers
-#define LED_PWM_FIRST_ADDR 0x00
-#define LED_PWM_LAST_ADDR 0xBF
-#define LED_PWM_LENGTH 0xC0
-
-// Current Tune Registers
-#define LED_CURRENT_TUNE_FIRST_ADDR 0x00
-#define LED_CURRENT_TUNE_LAST_ADDR 0x0B
-#define LED_CURRENT_TUNE_LENGTH 0x0C
-
-#define A_1 0x00
-#define A_2 0x01
-#define A_3 0x02
-#define A_4 0x03
-#define A_5 0x04
-#define A_6 0x05
-#define A_7 0x06
-#define A_8 0x07
-#define A_9 0x08
-#define A_10 0x09
-#define A_11 0x0A
-#define A_12 0x0B
-#define A_13 0x0C
-#define A_14 0x0D
-#define A_15 0x0E
-#define A_16 0x0F
-
-#define B_1 0x10
-#define B_2 0x11
-#define B_3 0x12
-#define B_4 0x13
-#define B_5 0x14
-#define B_6 0x15
-#define B_7 0x16
-#define B_8 0x17
-#define B_9 0x18
-#define B_10 0x19
-#define B_11 0x1A
-#define B_12 0x1B
-#define B_13 0x1C
-#define B_14 0x1D
-#define B_15 0x1E
-#define B_16 0x1F
-
-#define C_1 0x20
-#define C_2 0x21
-#define C_3 0x22
-#define C_4 0x23
-#define C_5 0x24
-#define C_6 0x25
-#define C_7 0x26
-#define C_8 0x27
-#define C_9 0x28
-#define C_10 0x29
-#define C_11 0x2A
-#define C_12 0x2B
-#define C_13 0x2C
-#define C_14 0x2D
-#define C_15 0x2E
-#define C_16 0x2F
-
-#define D_1 0x30
-#define D_2 0x31
-#define D_3 0x32
-#define D_4 0x33
-#define D_5 0x34
-#define D_6 0x35
-#define D_7 0x36
-#define D_8 0x37
-#define D_9 0x38
-#define D_10 0x39
-#define D_11 0x3A
-#define D_12 0x3B
-#define D_13 0x3C
-#define D_14 0x3D
-#define D_15 0x3E
-#define D_16 0x3F
-
-#define E_1 0x40
-#define E_2 0x41
-#define E_3 0x42
-#define E_4 0x43
-#define E_5 0x44
-#define E_6 0x45
-#define E_7 0x46
-#define E_8 0x47
-#define E_9 0x48
-#define E_10 0x49
-#define E_11 0x4A
-#define E_12 0x4B
-#define E_13 0x4C
-#define E_14 0x4D
-#define E_15 0x4E
-#define E_16 0x4F
-
-#define F_1 0x50
-#define F_2 0x51
-#define F_3 0x52
-#define F_4 0x53
-#define F_5 0x54
-#define F_6 0x55
-#define F_7 0x56
-#define F_8 0x57
-#define F_9 0x58
-#define F_10 0x59
-#define F_11 0x5A
-#define F_12 0x5B
-#define F_13 0x5C
-#define F_14 0x5D
-#define F_15 0x5E
-#define F_16 0x5F
-
-#define G_1 0x60
-#define G_2 0x61
-#define G_3 0x62
-#define G_4 0x63
-#define G_5 0x64
-#define G_6 0x65
-#define G_7 0x66
-#define G_8 0x67
-#define G_9 0x68
-#define G_10 0x69
-#define G_11 0x6A
-#define G_12 0x6B
-#define G_13 0x6C
-#define G_14 0x6D
-#define G_15 0x6E
-#define G_16 0x6F
-
-#define H_1 0x70
-#define H_2 0x71
-#define H_3 0x72
-#define H_4 0x73
-#define H_5 0x74
-#define H_6 0x75
-#define H_7 0x76
-#define H_8 0x77
-#define H_9 0x78
-#define H_10 0x79
-#define H_11 0x7A
-#define H_12 0x7B
-#define H_13 0x7C
-#define H_14 0x7D
-#define H_15 0x7E
-#define H_16 0x7F
-
-#define I_1 0x80
-#define I_2 0x81
-#define I_3 0x82
-#define I_4 0x83
-#define I_5 0x84
-#define I_6 0x85
-#define I_7 0x86
-#define I_8 0x87
-#define I_9 0x88
-#define I_10 0x89
-#define I_11 0x8A
-#define I_12 0x8B
-#define I_13 0x8C
-#define I_14 0x8D
-#define I_15 0x8E
-#define I_16 0x8F
-
-#define J_1 0x90
-#define J_2 0x91
-#define J_3 0x92
-#define J_4 0x93
-#define J_5 0x94
-#define J_6 0x95
-#define J_7 0x96
-#define J_8 0x97
-#define J_9 0x98
-#define J_10 0x99
-#define J_11 0x9A
-#define J_12 0x9B
-#define J_13 0x9C
-#define J_14 0x9D
-#define J_15 0x9E
-#define J_16 0x9F
-
-#define K_1 0xA0
-#define K_2 0xA1
-#define K_3 0xA2
-#define K_4 0xA3
-#define K_5 0xA4
-#define K_6 0xA5
-#define K_7 0xA6
-#define K_8 0xA7
-#define K_9 0xA8
-#define K_10 0xA9
-#define K_11 0xAA
-#define K_12 0xAB
-#define K_13 0xAC
-#define K_14 0xAD
-#define K_15 0xAE
-#define K_16 0xAF
-
-#define L_1 0xB0
-#define L_2 0xB1
-#define L_3 0xB2
-#define L_4 0xB3
-#define L_5 0xB4
-#define L_6 0xB5
-#define L_7 0xB6
-#define L_8 0xB7
-#define L_9 0xB8
-#define L_10 0xB9
-#define L_11 0xBA
-#define L_12 0xBB
-#define L_13 0xBC
-#define L_14 0xBD
-#define L_15 0xBE
-#define L_16 0xBF
--- a/drivers/led/ckled2001.c
+++ b/drivers/led/ckled2001.c
@ -1,236 +0,0 @@
-/* Copyright 2021 @ Keychron (https://www.keychron.com)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "ckled2001.h"
-#include "i2c_master.h"
-#include "wait.h"
-
-#ifndef CKLED2001_TIMEOUT
-#    define CKLED2001_TIMEOUT 100
-#endif
-
-#ifndef CKLED2001_PERSISTENCE
-#    define CKLED2001_PERSISTENCE 0
-#endif
-
-#ifndef PHASE_CHANNEL
-#    define PHASE_CHANNEL MSKPHASE_12CHANNEL
-#endif
-
-#ifndef CKLED2001_CURRENT_TUNE
-#    define CKLED2001_CURRENT_TUNE \
-        { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }
-#endif
-
-// Transfer buffer for TWITransmitData()
-uint8_t g_twi_transfer_buffer[65];
-
-// These buffers match the CKLED2001 PWM registers.
-// The control buffers match the PG0 LED On/Off registers.
-// Storing them like this is optimal for I2C transfers to the registers.
-// We could optimize this and take out the unused registers from these
-// buffers and the transfers in ckled2001_write_pwm_buffer() but it's
-// probably not worth the extra complexity.
-uint8_t g_pwm_buffer[DRIVER_COUNT][192];
-bool    g_pwm_buffer_update_required[DRIVER_COUNT] = {false};
-
-uint8_t g_led_control_registers[DRIVER_COUNT][24]             = {0};
-bool    g_led_control_registers_update_required[DRIVER_COUNT] = {false};
-
-bool ckled2001_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
-    // If the transaction fails function returns false.
-    g_twi_transfer_buffer[0] = reg;
-    g_twi_transfer_buffer[1] = data;
-
-#if CKLED2001_PERSISTENCE > 0
-    for (uint8_t i = 0; i < CKLED2001_PERSISTENCE; i++) {
-        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, CKLED2001_TIMEOUT) != 0) {
-            return false;
-        }
-    }
-#else
-    if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, CKLED2001_TIMEOUT) != 0) {
-        return false;
-    }
-#endif
-    return true;
-}
-
-bool ckled2001_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
-    // Assumes PG1 is already selected.
-    // If any of the transactions fails function returns false.
-    // Transmit PWM registers in 3 transfers of 64 bytes.
-
-    // Iterate over the pwm_buffer contents at 64 byte intervals.
-    for (uint8_t i = 0; i < 192; i += 64) {
-        g_twi_transfer_buffer[0] = i;
-        // Copy the data from i to i+63.
-        // Device will auto-increment register for data after the first byte
-        // Thus this sets registers 0x00-0x0F, 0x10-0x1F, etc. in one transfer.
-        for (uint8_t j = 0; j < 64; j++) {
-            g_twi_transfer_buffer[1 + j] = pwm_buffer[i + j];
-        }
-
-#if CKLED2001_PERSISTENCE > 0
-        for (uint8_t i = 0; i < CKLED2001_PERSISTENCE; i++) {
-            if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 65, CKLED2001_TIMEOUT) != 0) {
-                return false;
-            }
-        }
-#else
-        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 65, CKLED2001_TIMEOUT) != 0) {
-            return false;
-        }
-#endif
-    }
-    return true;
-}
-
-void ckled2001_init(uint8_t addr) {
-    // Select to function page
-    ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, FUNCTION_PAGE);
-    // Setting LED driver to shutdown mode
-    ckled2001_write_register(addr, CONFIGURATION_REG, MSKSW_SHUT_DOWN_MODE);
-    // Setting internal channel pulldown/pullup
-    ckled2001_write_register(addr, PDU_REG, MSKSET_CA_CB_CHANNEL);
-    // Select number of scan phase
-    ckled2001_write_register(addr, SCAN_PHASE_REG, PHASE_CHANNEL);
-    // Setting PWM Delay Phase
-    ckled2001_write_register(addr, SLEW_RATE_CONTROL_MODE1_REG, MSKPWM_DELAY_PHASE_ENABLE);
-    // Setting Driving/Sinking Channel Slew Rate
-    ckled2001_write_register(addr, SLEW_RATE_CONTROL_MODE2_REG, MSKDRIVING_SINKING_CHHANNEL_SLEWRATE_ENABLE);
-    // Setting Iref
-    ckled2001_write_register(addr, SOFTWARE_SLEEP_REG, MSKSLEEP_DISABLE);
-    // Set LED CONTROL PAGE (Page 0)
-    ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, LED_CONTROL_PAGE);
-    for (int i = 0; i < LED_CONTROL_ON_OFF_LENGTH; i++) {
-        ckled2001_write_register(addr, i, 0x00);
-    }
-
-    // Set PWM PAGE (Page 1)
-    ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, LED_PWM_PAGE);
-    for (int i = 0; i < LED_CURRENT_TUNE_LENGTH; i++) {
-        ckled2001_write_register(addr, i, 0x00);
-    }
-
-    // Set CURRENT PAGE (Page 4)
-    uint8_t current_tuen_reg_list[LED_CURRENT_TUNE_LENGTH] = CKLED2001_CURRENT_TUNE;
-    ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, CURRENT_TUNE_PAGE);
-    for (int i = 0; i < LED_CURRENT_TUNE_LENGTH; i++) {
-        ckled2001_write_register(addr, i, current_tuen_reg_list[i]);
-    }
-
-    // Enable LEDs ON/OFF
-    ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, LED_CONTROL_PAGE);
-    for (int i = 0; i < LED_CONTROL_ON_OFF_LENGTH; i++) {
-        ckled2001_write_register(addr, i, 0xFF);
-    }
-
-    // Select to function page
-    ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, FUNCTION_PAGE);
-    // Setting LED driver to normal mode
-    ckled2001_write_register(addr, CONFIGURATION_REG, MSKSW_NORMAL_MODE);
-}
-
-void ckled2001_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
-    ckled2001_led led;
-    if (index >= 0 && index < RGB_MATRIX_LED_COUNT) {
-        memcpy_P(&led, (&g_ckled2001_leds[index]), sizeof(led));
-
-        if (g_pwm_buffer[led.driver][led.r] == red && g_pwm_buffer[led.driver][led.g] == green && g_pwm_buffer[led.driver][led.b] == blue) {
-            return;
-        }
-        g_pwm_buffer[led.driver][led.r]          = red;
-        g_pwm_buffer[led.driver][led.g]          = green;
-        g_pwm_buffer[led.driver][led.b]          = blue;
-        g_pwm_buffer_update_required[led.driver] = true;
-    }
-}
-
-void ckled2001_set_color_all(uint8_t red, uint8_t green, uint8_t blue) {
-    for (int i = 0; i < RGB_MATRIX_LED_COUNT; i++) {
-        ckled2001_set_color(i, red, green, blue);
-    }
-}
-
-void ckled2001_set_led_control_register(uint8_t index, bool red, bool green, bool blue) {
-    ckled2001_led led;
-    memcpy_P(&led, (&g_ckled2001_leds[index]), sizeof(led));
-
-    uint8_t control_register_r = led.r / 8;
-    uint8_t control_register_g = led.g / 8;
-    uint8_t control_register_b = led.b / 8;
-    uint8_t bit_r              = led.r % 8;
-    uint8_t bit_g              = led.g % 8;
-    uint8_t bit_b              = led.b % 8;
-
-    if (red) {
-        g_led_control_registers[led.driver][control_register_r] |= (1 << bit_r);
-    } else {
-        g_led_control_registers[led.driver][control_register_r] &= ~(1 << bit_r);
-    }
-    if (green) {
-        g_led_control_registers[led.driver][control_register_g] |= (1 << bit_g);
-    } else {
-        g_led_control_registers[led.driver][control_register_g] &= ~(1 << bit_g);
-    }
-    if (blue) {
-        g_led_control_registers[led.driver][control_register_b] |= (1 << bit_b);
-    } else {
-        g_led_control_registers[led.driver][control_register_b] &= ~(1 << bit_b);
-    }
-
-    g_led_control_registers_update_required[led.driver] = true;
-}
-
-void ckled2001_update_pwm_buffers(uint8_t addr, uint8_t index) {
-    if (g_pwm_buffer_update_required[index]) {
-        ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, LED_PWM_PAGE);
-
-        // If any of the transactions fail we risk writing dirty PG0,
-        // refresh page 0 just in case.
-        if (!ckled2001_write_pwm_buffer(addr, g_pwm_buffer[index])) {
-            g_led_control_registers_update_required[index] = true;
-        }
-    }
-    g_pwm_buffer_update_required[index] = false;
-}
-
-void ckled2001_update_led_control_registers(uint8_t addr, uint8_t index) {
-    if (g_led_control_registers_update_required[index]) {
-        ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, LED_CONTROL_PAGE);
-        for (int i = 0; i < 24; i++) {
-            ckled2001_write_register(addr, i, g_led_control_registers[index][i]);
-        }
-    }
-    g_led_control_registers_update_required[index] = false;
-}
-
-void ckled2001_sw_return_normal(uint8_t addr) {
-    // Select to function page
-    ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, FUNCTION_PAGE);
-    // Setting LED driver to normal mode
-    ckled2001_write_register(addr, CONFIGURATION_REG, MSKSW_NORMAL_MODE);
-}
-
-void ckled2001_sw_shutdown(uint8_t addr) {
-    // Select to function page
-    ckled2001_write_register(addr, CONFIGURE_CMD_PAGE, FUNCTION_PAGE);
-    // Setting LED driver to shutdown mode
-    ckled2001_write_register(addr, CONFIGURATION_REG, MSKSW_SHUT_DOWN_MODE);
-    // Write SW Sleep Register
-    ckled2001_write_register(addr, SOFTWARE_SLEEP_REG, MSKSLEEP_ENABLE);
-}
--- a/drivers/led/ckled2001.h
+++ b/drivers/led/ckled2001.h
@ -1,339 +0,0 @@
-/* Copyright 2021 @ Keychron (https://www.keychron.com)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#pragma once
-
-#include <stdint.h>
-#include <stdbool.h>
-#include "progmem.h"
-
-typedef struct ckled2001_led {
-    uint8_t driver : 2;
-    uint8_t r;
-    uint8_t g;
-    uint8_t b;
-} __attribute__((packed)) ckled2001_led;
-
-extern const ckled2001_led PROGMEM g_ckled2001_leds[RGB_MATRIX_LED_COUNT];
-
-void ckled2001_init(uint8_t addr);
-bool ckled2001_write_register(uint8_t addr, uint8_t reg, uint8_t data);
-bool ckled2001_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
-
-void ckled2001_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);
-void ckled2001_set_color_all(uint8_t red, uint8_t green, uint8_t blue);
-
-void ckled2001_set_led_control_register(uint8_t index, bool red, bool green, bool blue);
-
-// This should not be called from an interrupt
-// (eg. from a timer interrupt).
-// Call this while idle (in between matrix scans).
-// If the buffer is dirty, it will update the driver with the buffer.
-void ckled2001_update_pwm_buffers(uint8_t addr, uint8_t index);
-void ckled2001_update_led_control_registers(uint8_t addr, uint8_t index);
-
-void ckled2001_sw_return_normal(uint8_t addr);
-void ckled2001_sw_shutdown(uint8_t addr);
-
-// Registers Page Define
-#define CONFIGURE_CMD_PAGE 0xFD
-#define LED_CONTROL_PAGE 0x00
-#define LED_PWM_PAGE 0x01
-#define FUNCTION_PAGE 0x03
-#define CURRENT_TUNE_PAGE 0x04
-
-// Function Register: address 0x00
-#define CONFIGURATION_REG 0x00
-#define MSKSW_SHUT_DOWN_MODE (0x0 << 0)
-#define MSKSW_NORMAL_MODE (0x1 << 0)
-
-#define DRIVER_ID_REG 0x11
-#define CKLED2001_ID 0x8A
-
-#define PDU_REG 0x13
-#define MSKSET_CA_CB_CHANNEL 0xAA
-#define MSKCLR_CA_CB_CHANNEL 0x00
-
-#define SCAN_PHASE_REG 0x14
-#define MSKPHASE_12CHANNEL 0x00
-#define MSKPHASE_11CHANNEL 0x01
-#define MSKPHASE_10CHANNEL 0x02
-#define MSKPHASE_9CHANNEL 0x03
-#define MSKPHASE_8CHANNEL 0x04
-#define MSKPHASE_7CHANNEL 0x05
-#define MSKPHASE_6CHANNEL 0x06
-#define MSKPHASE_5CHANNEL 0x07
-#define MSKPHASE_4CHANNEL 0x08
-#define MSKPHASE_3CHANNEL 0x09
-#define MSKPHASE_2CHANNEL 0x0A
-#define MSKPHASE_1CHANNEL 0x0B
-
-#define SLEW_RATE_CONTROL_MODE1_REG 0x15
-#define MSKPWM_DELAY_PHASE_ENABLE 0x04
-#define MSKPWM_DELAY_PHASE_DISABLE 0x00
-
-#define SLEW_RATE_CONTROL_MODE2_REG 0x16
-#define MSKDRIVING_SINKING_CHHANNEL_SLEWRATE_ENABLE 0xC0
-#define MSKDRIVING_SINKING_CHHANNEL_SLEWRATE_DISABLE 0x00
-
-#define OPEN_SHORT_ENABLE_REG 0x17
-#define MSKOPEN_DETECTION_ENABLE (0x01 << 7)
-#define MSKOPEN_DETECTION_DISABLE (0x00)
-
-#define MSKSHORT_DETECTION_ENABLE (0x01 << 6)
-#define MSKSHORT_DETECTION_DISABLE (0x00)
-
-#define OPEN_SHORT_DUTY_REG 0x18
-#define OPEN_SHORT_FLAG_REG 0x19
-
-#define MSKOPEN_DETECTION_INTERRUPT_ENABLE (0x01 << 7)
-#define MSKOPEN_DETECTION_INTERRUPT_DISABLE (0x00)
-
-#define MSKSHORT_DETECTION_INTERRUPT_ENABLE (0x01 << 6)
-#define MSKSHORT_DETECTION_INTERRUPT_DISABLE (0x00)
-
-#define SOFTWARE_SLEEP_REG 0x1A
-#define MSKSLEEP_ENABLE 0x02
-#define MSKSLEEP_DISABLE 0x00
-
-// LED Control Registers
-#define LED_CONTROL_ON_OFF_FIRST_ADDR 0x0
-#define LED_CONTROL_ON_OFF_LAST_ADDR 0x17
-#define LED_CONTROL_ON_OFF_LENGTH ((LED_CONTROL_ON_OFF_LAST_ADDR - LED_CONTROL_ON_OFF_FIRST_ADDR) + 1)
-
-#define LED_CONTROL_OPEN_FIRST_ADDR 0x18
-#define LED_CONTROL_OPEN_LAST_ADDR 0x2F
-#define LED_CONTROL_OPEN_LENGTH ((LED_CONTROL_OPEN_LAST_ADDR - LED_CONTROL_OPEN_FIRST_ADDR) + 1)
-
-#define LED_CONTROL_SHORT_FIRST_ADDR 0x30
-#define LED_CONTROL_SHORT_LAST_ADDR 0x47
-#define LED_CONTROL_SHORT_LENGTH ((LED_CONTROL_SHORT_LAST_ADDR - LED_CONTROL_SHORT_FIRST_ADDR) + 1)
-
-#define LED_CONTROL_PAGE_LENGTH 0x48
-
-// LED Control Registers
-#define LED_PWM_FIRST_ADDR 0x00
-#define LED_PWM_LAST_ADDR 0xBF
-#define LED_PWM_LENGTH 0xC0
-
-// Current Tune Registers
-#define LED_CURRENT_TUNE_FIRST_ADDR 0x00
-#define LED_CURRENT_TUNE_LAST_ADDR 0x0B
-#define LED_CURRENT_TUNE_LENGTH 0x0C
-
-#define A_1 0x00
-#define A_2 0x01
-#define A_3 0x02
-#define A_4 0x03
-#define A_5 0x04
-#define A_6 0x05
-#define A_7 0x06
-#define A_8 0x07
-#define A_9 0x08
-#define A_10 0x09
-#define A_11 0x0A
-#define A_12 0x0B
-#define A_13 0x0C
-#define A_14 0x0D
-#define A_15 0x0E
-#define A_16 0x0F
-
-#define B_1 0x10
-#define B_2 0x11
-#define B_3 0x12
-#define B_4 0x13
-#define B_5 0x14
-#define B_6 0x15
-#define B_7 0x16
-#define B_8 0x17
-#define B_9 0x18
-#define B_10 0x19
-#define B_11 0x1A
-#define B_12 0x1B
-#define B_13 0x1C
-#define B_14 0x1D
-#define B_15 0x1E
-#define B_16 0x1F
-
-#define C_1 0x20
-#define C_2 0x21
-#define C_3 0x22
-#define C_4 0x23
-#define C_5 0x24
-#define C_6 0x25
-#define C_7 0x26
-#define C_8 0x27
-#define C_9 0x28
-#define C_10 0x29
-#define C_11 0x2A
-#define C_12 0x2B
-#define C_13 0x2C
-#define C_14 0x2D
-#define C_15 0x2E
-#define C_16 0x2F
-
-#define D_1 0x30
-#define D_2 0x31
-#define D_3 0x32
-#define D_4 0x33
-#define D_5 0x34
-#define D_6 0x35
-#define D_7 0x36
-#define D_8 0x37
-#define D_9 0x38
-#define D_10 0x39
-#define D_11 0x3A
-#define D_12 0x3B
-#define D_13 0x3C
-#define D_14 0x3D
-#define D_15 0x3E
-#define D_16 0x3F
-
-#define E_1 0x40
-#define E_2 0x41
-#define E_3 0x42
-#define E_4 0x43
-#define E_5 0x44
-#define E_6 0x45
-#define E_7 0x46
-#define E_8 0x47
-#define E_9 0x48
-#define E_10 0x49
-#define E_11 0x4A
-#define E_12 0x4B
-#define E_13 0x4C
-#define E_14 0x4D
-#define E_15 0x4E
-#define E_16 0x4F
-
-#define F_1 0x50
-#define F_2 0x51
-#define F_3 0x52
-#define F_4 0x53
-#define F_5 0x54
-#define F_6 0x55
-#define F_7 0x56
-#define F_8 0x57
-#define F_9 0x58
-#define F_10 0x59
-#define F_11 0x5A
-#define F_12 0x5B
-#define F_13 0x5C
-#define F_14 0x5D
-#define F_15 0x5E
-#define F_16 0x5F
-
-#define G_1 0x60
-#define G_2 0x61
-#define G_3 0x62
-#define G_4 0x63
-#define G_5 0x64
-#define G_6 0x65
-#define G_7 0x66
-#define G_8 0x67
-#define G_9 0x68
-#define G_10 0x69
-#define G_11 0x6A
-#define G_12 0x6B
-#define G_13 0x6C
-#define G_14 0x6D
-#define G_15 0x6E
-#define G_16 0x6F
-
-#define H_1 0x70
-#define H_2 0x71
-#define H_3 0x72
-#define H_4 0x73
-#define H_5 0x74
-#define H_6 0x75
-#define H_7 0x76
-#define H_8 0x77
-#define H_9 0x78
-#define H_10 0x79
-#define H_11 0x7A
-#define H_12 0x7B
-#define H_13 0x7C
-#define H_14 0x7D
-#define H_15 0x7E
-#define H_16 0x7F
-
-#define I_1 0x80
-#define I_2 0x81
-#define I_3 0x82
-#define I_4 0x83
-#define I_5 0x84
-#define I_6 0x85
-#define I_7 0x86
-#define I_8 0x87
-#define I_9 0x88
-#define I_10 0x89
-#define I_11 0x8A
-#define I_12 0x8B
-#define I_13 0x8C
-#define I_14 0x8D
-#define I_15 0x8E
-#define I_16 0x8F
-
-#define J_1 0x90
-#define J_2 0x91
-#define J_3 0x92
-#define J_4 0x93
-#define J_5 0x94
-#define J_6 0x95
-#define J_7 0x96
-#define J_8 0x97
-#define J_9 0x98
-#define J_10 0x99
-#define J_11 0x9A
-#define J_12 0x9B
-#define J_13 0x9C
-#define J_14 0x9D
-#define J_15 0x9E
-#define J_16 0x9F
-
-#define K_1 0xA0
-#define K_2 0xA1
-#define K_3 0xA2
-#define K_4 0xA3
-#define K_5 0xA4
-#define K_6 0xA5
-#define K_7 0xA6
-#define K_8 0xA7
-#define K_9 0xA8
-#define K_10 0xA9
-#define K_11 0xAA
-#define K_12 0xAB
-#define K_13 0xAC
-#define K_14 0xAD
-#define K_15 0xAE
-#define K_16 0xAF
-
-#define L_1 0xB0
-#define L_2 0xB1
-#define L_3 0xB2
-#define L_4 0xB3
-#define L_5 0xB4
-#define L_6 0xB5
-#define L_7 0xB6
-#define L_8 0xB7
-#define L_9 0xB8
-#define L_10 0xB9
-#define L_11 0xBA
-#define L_12 0xBB
-#define L_13 0xBC
-#define L_14 0xBD
-#define L_15 0xBE
-#define L_16 0xBF
--- a/drivers/led/issi/is31fl3218-simple.c
+++ b/drivers/led/issi/is31fl3218-simple.c
@ -0,0 +1,147 @@
+/* Copyright 2018 Jason Williams (Wilba)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "is31fl3218.h"
+#include <string.h>
+#include "i2c_master.h"
+
+#define IS31FL3218_PWM_REGISTER_COUNT 18
+#define IS31FL3218_LED_CONTROL_REGISTER_COUNT 3
+
+#ifndef IS31FL3218_I2C_TIMEOUT
+#    define IS31FL3218_I2C_TIMEOUT 100
+#endif
+
+#ifndef IS31FL3218_I2C_PERSISTENCE
+#    define IS31FL3218_I2C_PERSISTENCE 0
+#endif
+
+// Reusable buffer for transfers
+uint8_t g_twi_transfer_buffer[20];
+
+// IS31FL3218 has 18 PWM outputs and a fixed I2C address, so no chaining.
+uint8_t g_pwm_buffer[IS31FL3218_PWM_REGISTER_COUNT];
+bool    g_pwm_buffer_update_required = false;
+
+uint8_t g_led_control_registers[IS31FL3218_LED_CONTROL_REGISTER_COUNT] = {0};
+bool    g_led_control_registers_update_required                        = false;
+
+void is31fl3218_write_register(uint8_t reg, uint8_t data) {
+    g_twi_transfer_buffer[0] = reg;
+    g_twi_transfer_buffer[1] = data;
+#if IS31FL3218_I2C_PERSISTENCE > 0
+    for (uint8_t i = 0; i < IS31FL3218_I2C_PERSISTENCE; i++) {
+        if (i2c_transmit(IS31FL3218_I2C_ADDRESS << 1, g_twi_transfer_buffer, 2, IS31FL3218_I2C_TIMEOUT) == 0) break;
+    }
+#else
+    i2c_transmit(IS31FL3218_I2C_ADDRESS << 1, g_twi_transfer_buffer, 2, IS31FL3218_I2C_TIMEOUT);
+#endif
+}
+
+void is31fl3218_write_pwm_buffer(uint8_t *pwm_buffer) {
+    g_twi_transfer_buffer[0] = IS31FL3218_REG_PWM;
+    memcpy(g_twi_transfer_buffer + 1, pwm_buffer, 18);
+
+#if IS31FL3218_I2C_PERSISTENCE > 0
+    for (uint8_t i = 0; i < IS31FL3218_I2C_PERSISTENCE; i++) {
+        i2c_transmit(IS31FL3218_I2C_ADDRESS << 1, g_twi_transfer_buffer, 19, IS31FL3218_I2C_TIMEOUT);
+    }
+#else
+    i2c_transmit(IS31FL3218_I2C_ADDRESS << 1, g_twi_transfer_buffer, 19, IS31FL3218_I2C_TIMEOUT);
+#endif
+}
+
+void is31fl3218_init(void) {
+    i2c_init();
+
+    // In case we ever want to reinitialize (?)
+    is31fl3218_write_register(IS31FL3218_REG_RESET, 0x00);
+
+    // Turn off software shutdown
+    is31fl3218_write_register(IS31FL3218_REG_SHUTDOWN, 0x01);
+
+    // Set all PWM values to zero
+    for (uint8_t i = 0; i < IS31FL3218_PWM_REGISTER_COUNT; i++) {
+        is31fl3218_write_register(IS31FL3218_REG_PWM + i, 0x00);
+    }
+
+    // turn off all LEDs in the LED control register
+    for (uint8_t i = 0; i < IS31FL3218_LED_CONTROL_REGISTER_COUNT; i++) {
+        is31fl3218_write_register(IS31FL3218_REG_LED_CONTROL_1 + i, 0x00);
+    }
+
+    // Load PWM registers and LED Control register data
+    is31fl3218_write_register(IS31FL3218_REG_UPDATE, 0x01);
+
+    for (int i = 0; i < IS31FL3218_LED_COUNT; i++) {
+        is31fl3218_set_led_control_register(i, true);
+    }
+
+    is31fl3218_update_led_control_registers();
+}
+
+void is31fl3218_set_value(int index, uint8_t value) {
+    is31fl3218_led_t led;
+    if (index >= 0 && index < IS31FL3218_LED_COUNT) {
+        memcpy_P(&led, (&g_is31fl3218_leds[index]), sizeof(led));
+    }
+    if (g_pwm_buffer[led.v - IS31FL3218_REG_PWM] == value) {
+        return;
+    }
+    g_pwm_buffer[led.v - IS31FL3218_REG_PWM] = value;
+    g_pwm_buffer_update_required             = true;
+}
+
+void is31fl3218_set_value_all(uint8_t value) {
+    for (int i = 0; i < IS31FL3218_LED_COUNT; i++) {
+        is31fl3218_set_value(i, value);
+    }
+}
+
+void is31fl3218_set_led_control_register(uint8_t index, bool value) {
+    is31fl3218_led_t led;
+    memcpy_P(&led, (&g_is31fl3218_leds[index]), sizeof(led));
+
+    uint8_t control_register = (led.v - IS31FL3218_REG_PWM) / 6;
+    uint8_t bit_value        = (led.v - IS31FL3218_REG_PWM) % 6;
+
+    if (value) {
+        g_led_control_registers[control_register] |= (1 << bit_value);
+    } else {
+        g_led_control_registers[control_register] &= ~(1 << bit_value);
+    }
+
+    g_led_control_registers_update_required = true;
+}
+
+void is31fl3218_update_pwm_buffers(void) {
+    if (g_pwm_buffer_update_required) {
+        is31fl3218_write_pwm_buffer(g_pwm_buffer);
+        // Load PWM registers and LED Control register data
+        is31fl3218_write_register(IS31FL3218_REG_UPDATE, 0x01);
+
+        g_pwm_buffer_update_required = false;
+    }
+}
+
+void is31fl3218_update_led_control_registers(void) {
+    if (g_led_control_registers_update_required) {
+        for (int i = 0; i < IS31FL3218_LED_CONTROL_REGISTER_COUNT; i++) {
+            is31fl3218_write_register(IS31FL3218_REG_LED_CONTROL_1 + i, g_led_control_registers[i]);
+        }
+
+        g_led_control_registers_update_required = false;
+    }
+}
--- a/drivers/led/issi/is31fl3218-simple.h
+++ b/drivers/led/issi/is31fl3218-simple.h
@ -0,0 +1,73 @@
+/* Copyright 2018 Jason Williams (Wilba)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "progmem.h"
+#include "util.h"
+
+#define IS31FL3218_REG_SHUTDOWN 0x00
+#define IS31FL3218_REG_PWM 0x01
+#define IS31FL3218_REG_LED_CONTROL_1 0x13
+#define IS31FL3218_REG_LED_CONTROL_2 0x14
+#define IS31FL3218_REG_LED_CONTROL_3 0x15
+#define IS31FL3218_REG_UPDATE 0x16
+#define IS31FL3218_REG_RESET 0x17
+
+#define IS31FL3218_I2C_ADDRESS 0x54
+
+#if defined(LED_MATRIX_IS31FL3218)
+#    define IS31FL3218_LED_COUNT LED_MATRIX_LED_COUNT
+#endif
+
+typedef struct is31fl3218_led_t {
+    uint8_t v;
+} PACKED is31fl3218_led_t;
+
+extern const is31fl3218_led_t PROGMEM g_is31fl3218_leds[IS31FL3218_LED_COUNT];
+
+void is31fl3218_init(void);
+
+void is31fl3218_set_value(int index, uint8_t value);
+
+void is31fl3218_set_value_all(uint8_t value);
+
+void is31fl3218_set_led_control_register(uint8_t index, bool value);
+
+void is31fl3218_update_pwm_buffers(void);
+
+void is31fl3218_update_led_control_registers(void);
+
+#define OUT1 0x01
+#define OUT2 0x02
+#define OUT3 0x03
+#define OUT4 0x04
+#define OUT5 0x05
+#define OUT6 0x06
+#define OUT7 0x07
+#define OUT8 0x08
+#define OUT9 0x09
+#define OUT10 0x0A
+#define OUT11 0x0B
+#define OUT12 0x0C
+#define OUT13 0x0D
+#define OUT14 0x0E
+#define OUT15 0x0F
+#define OUT16 0x10
+#define OUT17 0x11
+#define OUT18 0x12
--- a/drivers/led/issi/is31fl3218.c
+++ b/drivers/led/issi/is31fl3218.c
@ -14,84 +14,150 @@
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include "is31fl3218.h"
+#include <string.h>
 #include "i2c_master.h"

-// This is the full 8-bit address
-#define ISSI_ADDRESS 0b10101000
+#define IS31FL3218_PWM_REGISTER_COUNT 18
+#define IS31FL3218_LED_CONTROL_REGISTER_COUNT 3

-// These are the register addresses
-#define ISSI_REG_SHUTDOWN 0x00
-#define ISSI_REG_PWM 0x01
-#define ISSI_REG_CONTROL 0x13
-#define ISSI_REG_UPDATE 0x16
-#define ISSI_REG_RESET 0x17
+#ifndef IS31FL3218_I2C_TIMEOUT
+#    define IS31FL3218_I2C_TIMEOUT 100
+#endif

-// Default timeout if no I2C response
-#define ISSI_TIMEOUT 100
+#ifndef IS31FL3218_I2C_PERSISTENCE
+#    define IS31FL3218_I2C_PERSISTENCE 0
+#endif

 // Reusable buffer for transfers
 uint8_t g_twi_transfer_buffer[20];

 // IS31FL3218 has 18 PWM outputs and a fixed I2C address, so no chaining.
-// If used as RGB LED driver, LEDs are assigned RGB,RGB,RGB,RGB,RGB,RGB
-uint8_t g_pwm_buffer[18];
+uint8_t g_pwm_buffer[IS31FL3218_PWM_REGISTER_COUNT];
 bool    g_pwm_buffer_update_required = false;

+uint8_t g_led_control_registers[IS31FL3218_LED_CONTROL_REGISTER_COUNT] = {0};
+bool    g_led_control_registers_update_required                        = false;
+
 void is31fl3218_write_register(uint8_t reg, uint8_t data) {
    g_twi_transfer_buffer[0] = reg;
    g_twi_transfer_buffer[1] = data;
-    i2c_transmit(ISSI_ADDRESS, g_twi_transfer_buffer, 2, ISSI_TIMEOUT);
+#if IS31FL3218_I2C_PERSISTENCE > 0
+    for (uint8_t i = 0; i < IS31FL3218_I2C_PERSISTENCE; i++) {
+        if (i2c_transmit(IS31FL3218_I2C_ADDRESS << 1, g_twi_transfer_buffer, 2, IS31FL3218_I2C_TIMEOUT) == 0) break;
+    }
+#else
+    i2c_transmit(IS31FL3218_I2C_ADDRESS << 1, g_twi_transfer_buffer, 2, IS31FL3218_I2C_TIMEOUT);
+#endif
 }

 void is31fl3218_write_pwm_buffer(uint8_t *pwm_buffer) {
-    g_twi_transfer_buffer[0] = ISSI_REG_PWM;
+    g_twi_transfer_buffer[0] = IS31FL3218_REG_PWM;
    memcpy(g_twi_transfer_buffer + 1, pwm_buffer, 18);

-    i2c_transmit(ISSI_ADDRESS, g_twi_transfer_buffer, 19, ISSI_TIMEOUT);
+#if IS31FL3218_I2C_PERSISTENCE > 0
+    for (uint8_t i = 0; i < IS31FL3218_I2C_PERSISTENCE; i++) {
+        i2c_transmit(IS31FL3218_I2C_ADDRESS << 1, g_twi_transfer_buffer, 19, IS31FL3218_I2C_TIMEOUT);
+    }
+#else
+    i2c_transmit(IS31FL3218_I2C_ADDRESS << 1, g_twi_transfer_buffer, 19, IS31FL3218_I2C_TIMEOUT);
+#endif
 }

 void is31fl3218_init(void) {
+    i2c_init();
+
    // In case we ever want to reinitialize (?)
-    is31fl3218_write_register(ISSI_REG_RESET, 0x00);
+    is31fl3218_write_register(IS31FL3218_REG_RESET, 0x00);

    // Turn off software shutdown
-    is31fl3218_write_register(ISSI_REG_SHUTDOWN, 0x01);
+    is31fl3218_write_register(IS31FL3218_REG_SHUTDOWN, 0x01);

    // Set all PWM values to zero
-    for (uint8_t i = 0; i < 18; i++) {
-        is31fl3218_write_register(ISSI_REG_PWM + i, 0x00);
+    for (uint8_t i = 0; i < IS31FL3218_PWM_REGISTER_COUNT; i++) {
+        is31fl3218_write_register(IS31FL3218_REG_PWM + i, 0x00);
    }

-    // Enable all channels
-    for (uint8_t i = 0; i < 3; i++) {
-        is31fl3218_write_register(ISSI_REG_CONTROL + i, 0b00111111);
+    // turn off all LEDs in the LED control register
+    for (uint8_t i = 0; i < IS31FL3218_LED_CONTROL_REGISTER_COUNT; i++) {
+        is31fl3218_write_register(IS31FL3218_REG_LED_CONTROL_1 + i, 0x00);
    }

    // Load PWM registers and LED Control register data
-    is31fl3218_write_register(ISSI_REG_UPDATE, 0x01);
+    is31fl3218_write_register(IS31FL3218_REG_UPDATE, 0x01);
+
+    for (int i = 0; i < IS31FL3218_LED_COUNT; i++) {
+        is31fl3218_set_led_control_register(i, true, true, true);
+    }
+
+    is31fl3218_update_led_control_registers();
 }

 void is31fl3218_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
-    if (g_pwm_buffer[index * 3 + 0] == red && g_pwm_buffer[index * 3 + 1] == green && g_pwm_buffer[index * 3 + 2] == blue) {
+    is31fl3218_led_t led;
+    if (index >= 0 && index < IS31FL3218_LED_COUNT) {
+        memcpy_P(&led, (&g_is31fl3218_leds[index]), sizeof(led));
+    }
+    if (g_pwm_buffer[led.r - IS31FL3218_REG_PWM] == red && g_pwm_buffer[led.g - IS31FL3218_REG_PWM] == green && g_pwm_buffer[led.b - IS31FL3218_REG_PWM] == blue) {
        return;
    }
-    g_pwm_buffer[index * 3 + 0]  = red;
-    g_pwm_buffer[index * 3 + 1]  = green;
-    g_pwm_buffer[index * 3 + 2]  = blue;
-    g_pwm_buffer_update_required = true;
+    g_pwm_buffer[led.r - IS31FL3218_REG_PWM] = red;
+    g_pwm_buffer[led.g - IS31FL3218_REG_PWM] = green;
+    g_pwm_buffer[led.b - IS31FL3218_REG_PWM] = blue;
+    g_pwm_buffer_update_required             = true;
 }

 void is31fl3218_set_color_all(uint8_t red, uint8_t green, uint8_t blue) {
-    for (int i = 0; i < 6; i++) {
+    for (int i = 0; i < IS31FL3218_LED_COUNT; i++) {
        is31fl3218_set_color(i, red, green, blue);
    }
 }

+void is31fl3218_set_led_control_register(uint8_t index, bool red, bool green, bool blue) {
+    is31fl3218_led_t led;
+    memcpy_P(&led, (&g_is31fl3218_leds[index]), sizeof(led));
+
+    uint8_t control_register_r = (led.r - IS31FL3218_REG_PWM) / 6;
+    uint8_t control_register_g = (led.g - IS31FL3218_REG_PWM) / 6;
+    uint8_t control_register_b = (led.b - IS31FL3218_REG_PWM) / 6;
+    uint8_t bit_r              = (led.r - IS31FL3218_REG_PWM) % 6;
+    uint8_t bit_g              = (led.g - IS31FL3218_REG_PWM) % 6;
+    uint8_t bit_b              = (led.b - IS31FL3218_REG_PWM) % 6;
+
+    if (red) {
+        g_led_control_registers[control_register_r] |= (1 << bit_r);
+    } else {
+        g_led_control_registers[control_register_r] &= ~(1 << bit_r);
+    }
+    if (green) {
+        g_led_control_registers[control_register_g] |= (1 << bit_g);
+    } else {
+        g_led_control_registers[control_register_g] &= ~(1 << bit_g);
+    }
+    if (blue) {
+        g_led_control_registers[control_register_b] |= (1 << bit_b);
+    } else {
+        g_led_control_registers[control_register_b] &= ~(1 << bit_b);
+    }
+
+    g_led_control_registers_update_required = true;
+}
+
 void is31fl3218_update_pwm_buffers(void) {
    if (g_pwm_buffer_update_required) {
        is31fl3218_write_pwm_buffer(g_pwm_buffer);
        // Load PWM registers and LED Control register data
-        is31fl3218_write_register(ISSI_REG_UPDATE, 0x01);
+        is31fl3218_write_register(IS31FL3218_REG_UPDATE, 0x01);
+
+        g_pwm_buffer_update_required = false;
+    }
+}
+
+void is31fl3218_update_led_control_registers(void) {
+    if (g_led_control_registers_update_required) {
+        for (int i = 0; i < IS31FL3218_LED_CONTROL_REGISTER_COUNT; i++) {
+            is31fl3218_write_register(IS31FL3218_REG_LED_CONTROL_1 + i, g_led_control_registers[i]);
+        }
+
+        g_led_control_registers_update_required = false;
    }
-    g_pwm_buffer_update_required = false;
 }
--- a/drivers/led/issi/is31fl3218.h
+++ b/drivers/led/issi/is31fl3218.h
@ -18,9 +18,58 @@

 #include <stdint.h>
 #include <stdbool.h>
-#include <string.h>
+#include "progmem.h"
+#include "util.h"
+
+#define IS31FL3218_REG_SHUTDOWN 0x00
+#define IS31FL3218_REG_PWM 0x01
+#define IS31FL3218_REG_LED_CONTROL_1 0x13
+#define IS31FL3218_REG_LED_CONTROL_2 0x14
+#define IS31FL3218_REG_LED_CONTROL_3 0x15
+#define IS31FL3218_REG_UPDATE 0x16
+#define IS31FL3218_REG_RESET 0x17
+
+#define IS31FL3218_I2C_ADDRESS 0x54
+
+#if defined(RGB_MATRIX_IS31FL3218)
+#    define IS31FL3218_LED_COUNT RGB_MATRIX_LED_COUNT
+#endif
+
+typedef struct is31fl3218_led_t {
+    uint8_t r;
+    uint8_t g;
+    uint8_t b;
+} PACKED is31fl3218_led_t;
+
+extern const is31fl3218_led_t PROGMEM g_is31fl3218_leds[IS31FL3218_LED_COUNT];

 void is31fl3218_init(void);
+
 void is31fl3218_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);
+
 void is31fl3218_set_color_all(uint8_t red, uint8_t green, uint8_t blue);
+
+void is31fl3218_set_led_control_register(uint8_t index, bool red, bool green, bool blue);
+
 void is31fl3218_update_pwm_buffers(void);
+
+void is31fl3218_update_led_control_registers(void);
+
+#define OUT1 0x01
+#define OUT2 0x02
+#define OUT3 0x03
+#define OUT4 0x04
+#define OUT5 0x05
+#define OUT6 0x06
+#define OUT7 0x07
+#define OUT8 0x08
+#define OUT9 0x09
+#define OUT10 0x0A
+#define OUT11 0x0B
+#define OUT12 0x0C
+#define OUT13 0x0D
+#define OUT14 0x0E
+#define OUT15 0x0F
+#define OUT16 0x10
+#define OUT17 0x11
+#define OUT18 0x12
--- a/drivers/led/issi/is31fl3731-simple.c
+++ b/drivers/led/issi/is31fl3731-simple.c
@ -18,44 +18,19 @@
 */

 #include "is31fl3731-simple.h"
+#include <string.h>
 #include "i2c_master.h"
 #include "wait.h"

-// This is a 7-bit address, that gets left-shifted and bit 0
-// set to 0 for write, 1 for read (as per I2C protocol)
-// The address will vary depending on your wiring:
-// 0b1110100 AD <-> GND
-// 0b1110111 AD <-> VCC
-// 0b1110101 AD <-> SCL
-// 0b1110110 AD <-> SDA
-#define ISSI_ADDR_DEFAULT 0x74
+#define IS31FL3731_PWM_REGISTER_COUNT 144
+#define IS31FL3731_LED_CONTROL_REGISTER_COUNT 18

-#define ISSI_REG_CONFIG 0x00
-#define ISSI_REG_CONFIG_PICTUREMODE 0x00
-#define ISSI_REG_CONFIG_AUTOPLAYMODE 0x08
-#define ISSI_REG_CONFIG_AUDIOPLAYMODE 0x18
-
-#define ISSI_CONF_PICTUREMODE 0x00
-#define ISSI_CONF_AUTOFRAMEMODE 0x04
-#define ISSI_CONF_AUDIOMODE 0x08
-
-#define ISSI_REG_PICTUREFRAME 0x01
-
-// Not defined in the datasheet -- See AN for IC
-#define ISSI_REG_GHOST_IMAGE_PREVENTION 0xC2 // Set bit 4 to enable de-ghosting
-
-#define ISSI_REG_SHUTDOWN 0x0A
-#define ISSI_REG_AUDIOSYNC 0x06
-
-#define ISSI_COMMANDREGISTER 0xFD
-#define ISSI_BANK_FUNCTIONREG 0x0B // helpfully called 'page nine'
-
-#ifndef ISSI_TIMEOUT
-#    define ISSI_TIMEOUT 100
+#ifndef IS31FL3731_I2C_TIMEOUT
+#    define IS31FL3731_I2C_TIMEOUT 100
 #endif

-#ifndef ISSI_PERSISTENCE
-#    define ISSI_PERSISTENCE 0
+#ifndef IS31FL3731_I2C_PERSISTENCE
+#    define IS31FL3731_I2C_PERSISTENCE 0
 #endif

 // Transfer buffer for TWITransmitData()
@ -66,47 +41,24 @@ uint8_t g_twi_transfer_buffer[20];
 // We could optimize this and take out the unused registers from these
 // buffers and the transfers in is31fl3731_write_pwm_buffer() but it's
 // probably not worth the extra complexity.
-uint8_t g_pwm_buffer[LED_DRIVER_COUNT][144];
-bool    g_pwm_buffer_update_required[LED_DRIVER_COUNT] = {false};
+uint8_t g_pwm_buffer[IS31FL3731_DRIVER_COUNT][IS31FL3731_PWM_REGISTER_COUNT];
+bool    g_pwm_buffer_update_required[IS31FL3731_DRIVER_COUNT] = {false};

-/* There's probably a better way to init this... */
-#if LED_DRIVER_COUNT == 1
-uint8_t g_led_control_registers[LED_DRIVER_COUNT][18] = {{0}};
-#elif LED_DRIVER_COUNT == 2
-uint8_t g_led_control_registers[LED_DRIVER_COUNT][18] = {{0}, {0}};
-#elif LED_DRIVER_COUNT == 3
-uint8_t g_led_control_registers[LED_DRIVER_COUNT][18] = {{0}, {0}, {0}};
-#elif LED_DRIVER_COUNT == 4
-uint8_t g_led_control_registers[LED_DRIVER_COUNT][18] = {{0}, {0}, {0}, {0}};
-#endif
-bool g_led_control_registers_update_required[LED_DRIVER_COUNT] = {false};
-
-// This is the bit pattern in the LED control registers
-// (for matrix A, add one to register for matrix B)
-//
-//  reg -  b7  b6  b5  b4  b3  b2  b1  b0
-// 0x00 - R08,R07,R06,R05,R04,R03,R02,R01
-// 0x02 - G08,G07,G06,G05,G04,G03,G02,R00
-// 0x04 - B08,B07,B06,B05,B04,B03,G01,G00
-// 0x06 -  - , - , - , - , - ,B02,B01,B00
-// 0x08 -  - , - , - , - , - , - , - , -
-// 0x0A - B17,B16,B15, - , - , - , - , -
-// 0x0C - G17,G16,B14,B13,B12,B11,B10,B09
-// 0x0E - R17,G15,G14,G13,G12,G11,G10,G09
-// 0x10 - R16,R15,R14,R13,R12,R11,R10,R09
+uint8_t g_led_control_registers[IS31FL3731_DRIVER_COUNT][IS31FL3731_LED_CONTROL_REGISTER_COUNT] = {0};
+bool    g_led_control_registers_update_required[IS31FL3731_DRIVER_COUNT]                        = {false};

 void is31fl3731_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
    g_twi_transfer_buffer[0] = reg;
    g_twi_transfer_buffer[1] = data;

-#if ISSI_PERSISTENCE > 0
-    for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
-        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT) == 0) {
+#if IS31FL3731_I2C_PERSISTENCE > 0
+    for (uint8_t i = 0; i < IS31FL3731_I2C_PERSISTENCE; i++) {
+        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, IS31FL3731_I2C_TIMEOUT) == 0) {
            break;
        }
    }
 #else
-    i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT);
+    i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, IS31FL3731_I2C_TIMEOUT);
 #endif
 }

@ -117,7 +69,7 @@ void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
    // g_twi_transfer_buffer[] is 20 bytes

    // iterate over the pwm_buffer contents at 16 byte intervals
-    for (int i = 0; i < 144; i += 16) {
+    for (int i = 0; i < IS31FL3731_PWM_REGISTER_COUNT; i += 16) {
        // set the first register, e.g. 0x24, 0x34, 0x44, etc.
        g_twi_transfer_buffer[0] = 0x24 + i;
        // copy the data from i to i+15
@ -125,16 +77,46 @@ void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
        // thus this sets registers 0x24-0x33, 0x34-0x43, etc. in one transfer
        memcpy(g_twi_transfer_buffer + 1, pwm_buffer + i, 16);

-#if ISSI_PERSISTENCE > 0
-        for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
-            if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT) == 0) break;
+#if IS31FL3731_I2C_PERSISTENCE > 0
+        for (uint8_t i = 0; i < IS31FL3731_I2C_PERSISTENCE; i++) {
+            if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, IS31FL3731_I2C_TIMEOUT) == 0) break;
        }
 #else
-        i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT);
+        i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, IS31FL3731_I2C_TIMEOUT);
 #endif
    }
 }

+void is31fl3731_init_drivers(void) {
+    i2c_init();
+
+    is31fl3731_init(IS31FL3731_I2C_ADDRESS_1);
+#if defined(IS31FL3731_I2C_ADDRESS_2)
+    is31fl3731_init(IS31FL3731_I2C_ADDRESS_2);
+#    if defined(IS31FL3731_I2C_ADDRESS_3)
+    is31fl3731_init(IS31FL3731_I2C_ADDRESS_3);
+#        if defined(IS31FL3731_I2C_ADDRESS_4)
+    is31fl3731_init(IS31FL3731_I2C_ADDRESS_4);
+#        endif
+#    endif
+#endif
+
+    for (int i = 0; i < IS31FL3731_LED_COUNT; i++) {
+        is31fl3731_set_led_control_register(i, true);
+    }
+
+    is31fl3731_update_led_control_registers(IS31FL3731_I2C_ADDRESS_1, 0);
+#if defined(IS31FL3731_I2C_ADDRESS_2)
+    is31fl3731_update_led_control_registers(IS31FL3731_I2C_ADDRESS_2, 1);
+#    if defined(IS31FL3731_I2C_ADDRESS_3)
+    is31fl3731_update_led_control_registers(IS31FL3731_I2C_ADDRESS_3, 2);
+#        if defined(IS31FL3731_I2C_ADDRESS_4)
+    is31fl3731_update_led_control_registers(IS31FL3731_I2C_ADDRESS_4, 3);
+#        endif
+#    endif
+#endif
+}
+
 void is31fl3731_init(uint8_t addr) {
    // In order to avoid the LEDs being driven with garbage data
    // in the LED driver's PWM registers, first enable software shutdown,
@ -142,29 +124,29 @@ void is31fl3731_init(uint8_t addr) {
    // then disable software shutdown.

    // select "function register" bank
-    is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG);
+    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FUNCTION);

    // enable software shutdown
-    is31fl3731_write_register(addr, ISSI_REG_SHUTDOWN, 0x00);
-#ifdef ISSI_3731_DEGHOST // set to enable de-ghosting of the array
-    is31fl3731_write_register(addr, ISSI_REG_GHOST_IMAGE_PREVENTION, 0x10);
+    is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_SHUTDOWN, 0x00);
+#ifdef IS31FL3731_DEGHOST // set to enable de-ghosting of the array
+    is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_GHOST_IMAGE_PREVENTION, IS31FL3731_GHOST_IMAGE_PREVENTION_GEN);
 #endif

    // this delay was copied from other drivers, might not be needed
    wait_ms(10);

    // picture mode
-    is31fl3731_write_register(addr, ISSI_REG_CONFIG, ISSI_REG_CONFIG_PICTUREMODE);
+    is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_CONFIG, IS31FL3731_CONFIG_MODE_PICTURE);
    // display frame 0
-    is31fl3731_write_register(addr, ISSI_REG_PICTUREFRAME, 0x00);
+    is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_PICTURE_DISPLAY, 0x00);
    // audio sync off
-    is31fl3731_write_register(addr, ISSI_REG_AUDIOSYNC, 0x00);
+    is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_AUDIO_SYNC, 0x00);

    // select bank 0
-    is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, 0);
+    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FRAME_1);

    // turn off all LEDs in the LED control register
-    for (int i = 0x00; i <= 0x11; i++) {
+    for (int i = 0; i < IS31FL3731_LED_CONTROL_REGISTER_COUNT; i++) {
        is31fl3731_write_register(addr, i, 0x00);
    }

@ -179,21 +161,21 @@ void is31fl3731_init(uint8_t addr) {
    }

    // select "function register" bank
-    is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG);
+    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FUNCTION);

    // disable software shutdown
-    is31fl3731_write_register(addr, ISSI_REG_SHUTDOWN, 0x01);
+    is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_SHUTDOWN, 0x01);

    // select bank 0 and leave it selected.
    // most usage after initialization is just writing PWM buffers in bank 0
    // as there's not much point in double-buffering
-    is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, 0);
+    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FRAME_1);
 }

 void is31fl3731_set_value(int index, uint8_t value) {
-    is31_led led;
-    if (index >= 0 && index < LED_MATRIX_LED_COUNT) {
-        memcpy_P(&led, (&g_is31_leds[index]), sizeof(led));
+    is31fl3731_led_t led;
+    if (index >= 0 && index < IS31FL3731_LED_COUNT) {
+        memcpy_P(&led, (&g_is31fl3731_leds[index]), sizeof(led));

        // Subtract 0x24 to get the second index of g_pwm_buffer

@ -206,14 +188,14 @@ void is31fl3731_set_value(int index, uint8_t value) {
 }

 void is31fl3731_set_value_all(uint8_t value) {
-    for (int i = 0; i < LED_MATRIX_LED_COUNT; i++) {
+    for (int i = 0; i < IS31FL3731_LED_COUNT; i++) {
        is31fl3731_set_value(i, value);
    }
 }

 void is31fl3731_set_led_control_register(uint8_t index, bool value) {
-    is31_led led;
-    memcpy_P(&led, (&g_is31_leds[index]), sizeof(led));
+    is31fl3731_led_t led;
+    memcpy_P(&led, (&g_is31fl3731_leds[index]), sizeof(led));

    uint8_t control_register = (led.v - 0x24) / 8;
    uint8_t bit_value        = (led.v - 0x24) % 8;
@ -236,9 +218,22 @@ void is31fl3731_update_pwm_buffers(uint8_t addr, uint8_t index) {

 void is31fl3731_update_led_control_registers(uint8_t addr, uint8_t index) {
    if (g_led_control_registers_update_required[index]) {
-        for (int i = 0; i < 18; i++) {
+        for (int i = 0; i < IS31FL3731_LED_CONTROL_REGISTER_COUNT; i++) {
            is31fl3731_write_register(addr, i, g_led_control_registers[index][i]);
        }
        g_led_control_registers_update_required[index] = false;
    }
 }
+
+void is31fl3731_flush(void) {
+    is31fl3731_update_pwm_buffers(IS31FL3731_I2C_ADDRESS_1, 0);
+#if defined(IS31FL3731_I2C_ADDRESS_2)
+    is31fl3731_update_pwm_buffers(IS31FL3731_I2C_ADDRESS_2, 1);
+#    if defined(IS31FL3731_I2C_ADDRESS_3)
+    is31fl3731_update_pwm_buffers(IS31FL3731_I2C_ADDRESS_3, 2);
+#        if defined(IS31FL3731_I2C_ADDRESS_4)
+    is31fl3731_update_pwm_buffers(IS31FL3731_I2C_ADDRESS_4, 3);
+#        endif
+#    endif
+#endif
+}
--- a/drivers/led/issi/is31fl3731-simple.h
+++ b/drivers/led/issi/is31fl3731-simple.h
@ -20,16 +20,87 @@

 #include <stdint.h>
 #include <stdbool.h>
-#include <string.h>
 #include "progmem.h"
+#include "util.h"

-typedef struct is31_led {
+// ======== DEPRECATED DEFINES - DO NOT USE ========
+#ifdef LED_DRIVER_ADDR_1
+#    define IS31FL3731_I2C_ADDRESS_1 LED_DRIVER_ADDR_1
+#endif
+#ifdef LED_DRIVER_ADDR_2
+#    define IS31FL3731_I2C_ADDRESS_2 LED_DRIVER_ADDR_2
+#endif
+#ifdef LED_DRIVER_ADDR_3
+#    define IS31FL3731_I2C_ADDRESS_3 LED_DRIVER_ADDR_3
+#endif
+#ifdef LED_DRIVER_ADDR_4
+#    define IS31FL3731_I2C_ADDRESS_4 LED_DRIVER_ADDR_4
+#endif
+#ifdef ISSI_TIMEOUT
+#    define IS31FL3731_I2C_TIMEOUT ISSI_TIMEOUT
+#endif
+#ifdef ISSI_PERSISTENCE
+#    define IS31FL3731_I2C_PERSISTENCE ISSI_PERSISTENCE
+#endif
+#ifdef ISSI_3731_DEGHOST
+#    define IS31FL3731_DEGHOST ISSI_3731_DEGHOST
+#endif
+
+#define is31_led is31fl3731_led_t
+#define g_is31_leds g_is31fl3731_leds
+// ========
+
+#define IS31FL3731_REG_COMMAND 0xFD
+#define IS31FL3731_COMMAND_FRAME_1 0x00
+#define IS31FL3731_COMMAND_FRAME_2 0x01
+#define IS31FL3731_COMMAND_FRAME_3 0x02
+#define IS31FL3731_COMMAND_FRAME_4 0x03
+#define IS31FL3731_COMMAND_FRAME_5 0x04
+#define IS31FL3731_COMMAND_FRAME_6 0x05
+#define IS31FL3731_COMMAND_FRAME_7 0x06
+#define IS31FL3731_COMMAND_FRAME_8 0x07
+#define IS31FL3731_COMMAND_FUNCTION 0x0B
+
+#define IS31FL3731_FUNCTION_REG_CONFIG 0x00
+#define IS31FL3731_CONFIG_MODE_PICTURE 0x00
+#define IS31FL3731_CONFIG_MODE_AUTO_PLAY 0x08
+#define IS31FL3731_CONFIG_MODE_AUDIO_PLAY 0x18
+
+#define IS31FL3731_FUNCTION_REG_PICTURE_DISPLAY 0x01
+#define IS31FL3731_FUNCTION_REG_AUDIO_SYNC 0x06
+#define IS31FL3731_FUNCTION_REG_SHUTDOWN 0x0A
+
+// Not defined in the datasheet -- See AN for IC
+#define IS31FL3731_FUNCTION_REG_GHOST_IMAGE_PREVENTION 0xC2
+#define IS31FL3731_GHOST_IMAGE_PREVENTION_GEN 0x10
+
+#define IS31FL3731_I2C_ADDRESS_GND 0x74
+#define IS31FL3731_I2C_ADDRESS_SCL 0x75
+#define IS31FL3731_I2C_ADDRESS_SDA 0x76
+#define IS31FL3731_I2C_ADDRESS_VCC 0x77
+
+#if defined(LED_MATRIX_IS31FL3731)
+#    define IS31FL3731_LED_COUNT LED_MATRIX_LED_COUNT
+#endif
+
+#if defined IS31FL3731_I2C_ADDRESS_4
+#    define IS31FL3731_DRIVER_COUNT 4
+#elif defined IS31FL3731_I2C_ADDRESS_3
+#    define IS31FL3731_DRIVER_COUNT 3
+#elif defined IS31FL3731_I2C_ADDRESS_2
+#    define IS31FL3731_DRIVER_COUNT 2
+#elif defined IS31FL3731_I2C_ADDRESS_1
+#    define IS31FL3731_DRIVER_COUNT 1
+#endif
+
+typedef struct is31fl3731_led_t {
    uint8_t driver : 2;
    uint8_t v;
-} __attribute__((packed)) is31_led;
+} PACKED is31fl3731_led_t;

-extern const is31_led PROGMEM g_is31_leds[LED_MATRIX_LED_COUNT];
+extern const is31fl3731_led_t PROGMEM g_is31fl3731_leds[IS31FL3731_LED_COUNT];

+void is31fl3731_init_drivers(void);
 void is31fl3731_init(uint8_t addr);
 void is31fl3731_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
@ -46,6 +117,8 @@ void is31fl3731_set_led_control_register(uint8_t index, bool value);
 void is31fl3731_update_pwm_buffers(uint8_t addr, uint8_t index);
 void is31fl3731_update_led_control_registers(uint8_t addr, uint8_t index);

+void is31fl3731_flush(void);
+
 #define C1_1 0x24
 #define C1_2 0x25
 #define C1_3 0x26
--- a/drivers/led/issi/is31fl3731.c
+++ b/drivers/led/issi/is31fl3731.c
@ -17,44 +17,19 @@
 */

 #include "is31fl3731.h"
+#include <string.h>
 #include "i2c_master.h"
 #include "wait.h"

-// This is a 7-bit address, that gets left-shifted and bit 0
-// set to 0 for write, 1 for read (as per I2C protocol)
-// The address will vary depending on your wiring:
-// 0b1110100 AD <-> GND
-// 0b1110111 AD <-> VCC
-// 0b1110101 AD <-> SCL
-// 0b1110110 AD <-> SDA
-#define ISSI_ADDR_DEFAULT 0x74
+#define IS31FL3731_PWM_REGISTER_COUNT 144
+#define IS31FL3731_LED_CONTROL_REGISTER_COUNT 18

-#define ISSI_REG_CONFIG 0x00
-#define ISSI_REG_CONFIG_PICTUREMODE 0x00
-#define ISSI_REG_CONFIG_AUTOPLAYMODE 0x08
-#define ISSI_REG_CONFIG_AUDIOPLAYMODE 0x18
-
-#define ISSI_CONF_PICTUREMODE 0x00
-#define ISSI_CONF_AUTOFRAMEMODE 0x04
-#define ISSI_CONF_AUDIOMODE 0x08
-
-#define ISSI_REG_PICTUREFRAME 0x01
-
-// Not defined in the datasheet -- See AN for IC
-#define ISSI_REG_GHOST_IMAGE_PREVENTION 0xC2 // Set bit 4 to enable de-ghosting
-
-#define ISSI_REG_SHUTDOWN 0x0A
-#define ISSI_REG_AUDIOSYNC 0x06
-
-#define ISSI_COMMANDREGISTER 0xFD
-#define ISSI_BANK_FUNCTIONREG 0x0B // helpfully called 'page nine'
-
-#ifndef ISSI_TIMEOUT
-#    define ISSI_TIMEOUT 100
+#ifndef IS31FL3731_I2C_TIMEOUT
+#    define IS31FL3731_I2C_TIMEOUT 100
 #endif

-#ifndef ISSI_PERSISTENCE
-#    define ISSI_PERSISTENCE 0
+#ifndef IS31FL3731_I2C_PERSISTENCE
+#    define IS31FL3731_I2C_PERSISTENCE 0
 #endif

 // Transfer buffer for TWITransmitData()
@ -65,36 +40,22 @@ uint8_t g_twi_transfer_buffer[20];
 // We could optimize this and take out the unused registers from these
 // buffers and the transfers in is31fl3731_write_pwm_buffer() but it's
 // probably not worth the extra complexity.
-uint8_t g_pwm_buffer[DRIVER_COUNT][144];
-bool    g_pwm_buffer_update_required[DRIVER_COUNT] = {false};
+uint8_t g_pwm_buffer[IS31FL3731_DRIVER_COUNT][IS31FL3731_PWM_REGISTER_COUNT];
+bool    g_pwm_buffer_update_required[IS31FL3731_DRIVER_COUNT] = {false};

-uint8_t g_led_control_registers[DRIVER_COUNT][18]             = {{0}};
-bool    g_led_control_registers_update_required[DRIVER_COUNT] = {false};
-
-// This is the bit pattern in the LED control registers
-// (for matrix A, add one to register for matrix B)
-//
-//  reg -  b7  b6  b5  b4  b3  b2  b1  b0
-// 0x00 - R08,R07,R06,R05,R04,R03,R02,R01
-// 0x02 - G08,G07,G06,G05,G04,G03,G02,R00
-// 0x04 - B08,B07,B06,B05,B04,B03,G01,G00
-// 0x06 -  - , - , - , - , - ,B02,B01,B00
-// 0x08 -  - , - , - , - , - , - , - , -
-// 0x0A - B17,B16,B15, - , - , - , - , -
-// 0x0C - G17,G16,B14,B13,B12,B11,B10,B09
-// 0x0E - R17,G15,G14,G13,G12,G11,G10,G09
-// 0x10 - R16,R15,R14,R13,R12,R11,R10,R09
+uint8_t g_led_control_registers[IS31FL3731_DRIVER_COUNT][IS31FL3731_LED_CONTROL_REGISTER_COUNT] = {0};
+bool    g_led_control_registers_update_required[IS31FL3731_DRIVER_COUNT]                        = {false};

 void is31fl3731_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
    g_twi_transfer_buffer[0] = reg;
    g_twi_transfer_buffer[1] = data;

-#if ISSI_PERSISTENCE > 0
-    for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
-        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT) == 0) break;
+#if IS31FL3731_I2C_PERSISTENCE > 0
+    for (uint8_t i = 0; i < IS31FL3731_I2C_PERSISTENCE; i++) {
+        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, IS31FL3731_I2C_TIMEOUT) == 0) break;
    }
 #else
-    i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT);
+    i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, IS31FL3731_I2C_TIMEOUT);
 #endif
 }

@ -105,7 +66,7 @@ void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
    // g_twi_transfer_buffer[] is 20 bytes

    // iterate over the pwm_buffer contents at 16 byte intervals
-    for (int i = 0; i < 144; i += 16) {
+    for (int i = 0; i < IS31FL3731_PWM_REGISTER_COUNT; i += 16) {
        // set the first register, e.g. 0x24, 0x34, 0x44, etc.
        g_twi_transfer_buffer[0] = 0x24 + i;
        // copy the data from i to i+15
@ -113,16 +74,46 @@ void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
        // thus this sets registers 0x24-0x33, 0x34-0x43, etc. in one transfer
        memcpy(g_twi_transfer_buffer + 1, pwm_buffer + i, 16);

-#if ISSI_PERSISTENCE > 0
-        for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
-            if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT) == 0) break;
+#if IS31FL3731_I2C_PERSISTENCE > 0
+        for (uint8_t i = 0; i < IS31FL3731_I2C_PERSISTENCE; i++) {
+            if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, IS31FL3731_I2C_TIMEOUT) == 0) break;
        }
 #else
-        i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT);
+        i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, IS31FL3731_I2C_TIMEOUT);
 #endif
    }
 }

+void is31fl3731_init_drivers(void) {
+    i2c_init();
+
+    is31fl3731_init(IS31FL3731_I2C_ADDRESS_1);
+#if defined(IS31FL3731_I2C_ADDRESS_2)
+    is31fl3731_init(IS31FL3731_I2C_ADDRESS_2);
+#    if defined(IS31FL3731_I2C_ADDRESS_3)
+    is31fl3731_init(IS31FL3731_I2C_ADDRESS_3);
+#        if defined(IS31FL3731_I2C_ADDRESS_4)
+    is31fl3731_init(IS31FL3731_I2C_ADDRESS_4);
+#        endif
+#    endif
+#endif
+
+    for (int i = 0; i < IS31FL3731_LED_COUNT; i++) {
+        is31fl3731_set_led_control_register(i, true, true, true);
+    }
+
+    is31fl3731_update_led_control_registers(IS31FL3731_I2C_ADDRESS_1, 0);
+#if defined(IS31FL3731_I2C_ADDRESS_2)
+    is31fl3731_update_led_control_registers(IS31FL3731_I2C_ADDRESS_2, 1);
+#    if defined(IS31FL3731_I2C_ADDRESS_3)
+    is31fl3731_update_led_control_registers(IS31FL3731_I2C_ADDRESS_3, 2);
+#        if defined(IS31FL3731_I2C_ADDRESS_4)
+    is31fl3731_update_led_control_registers(IS31FL3731_I2C_ADDRESS_4, 3);
+#        endif
+#    endif
+#endif
+}
+
 void is31fl3731_init(uint8_t addr) {
    // In order to avoid the LEDs being driven with garbage data
    // in the LED driver's PWM registers, first enable software shutdown,
@ -130,29 +121,29 @@ void is31fl3731_init(uint8_t addr) {
    // then disable software shutdown.

    // select "function register" bank
-    is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG);
+    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FUNCTION);

    // enable software shutdown
-    is31fl3731_write_register(addr, ISSI_REG_SHUTDOWN, 0x00);
-#ifdef ISSI_3731_DEGHOST // set to enable de-ghosting of the array
-    is31fl3731_write_register(addr, ISSI_REG_GHOST_IMAGE_PREVENTION, 0x10);
+    is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_SHUTDOWN, 0x00);
+#ifdef IS31FL3731_DEGHOST // set to enable de-ghosting of the array
+    is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_GHOST_IMAGE_PREVENTION, IS31FL3731_GHOST_IMAGE_PREVENTION_GEN);
 #endif

    // this delay was copied from other drivers, might not be needed
    wait_ms(10);

    // picture mode
-    is31fl3731_write_register(addr, ISSI_REG_CONFIG, ISSI_REG_CONFIG_PICTUREMODE);
+    is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_CONFIG, IS31FL3731_CONFIG_MODE_PICTURE);
    // display frame 0
-    is31fl3731_write_register(addr, ISSI_REG_PICTUREFRAME, 0x00);
+    is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_PICTURE_DISPLAY, 0x00);
    // audio sync off
-    is31fl3731_write_register(addr, ISSI_REG_AUDIOSYNC, 0x00);
+    is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_AUDIO_SYNC, 0x00);

    // select bank 0
-    is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, 0);
+    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FRAME_1);

    // turn off all LEDs in the LED control register
-    for (int i = 0x00; i <= 0x11; i++) {
+    for (int i = 0; i < IS31FL3731_LED_CONTROL_REGISTER_COUNT; i++) {
        is31fl3731_write_register(addr, i, 0x00);
    }

@ -167,21 +158,21 @@ void is31fl3731_init(uint8_t addr) {
    }

    // select "function register" bank
-    is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG);
+    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FUNCTION);

    // disable software shutdown
-    is31fl3731_write_register(addr, ISSI_REG_SHUTDOWN, 0x01);
+    is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_SHUTDOWN, 0x01);

    // select bank 0 and leave it selected.
    // most usage after initialization is just writing PWM buffers in bank 0
    // as there's not much point in double-buffering
-    is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, 0);
+    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FRAME_1);
 }

 void is31fl3731_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
-    is31_led led;
-    if (index >= 0 && index < RGB_MATRIX_LED_COUNT) {
-        memcpy_P(&led, (&g_is31_leds[index]), sizeof(led));
+    is31fl3731_led_t led;
+    if (index >= 0 && index < IS31FL3731_LED_COUNT) {
+        memcpy_P(&led, (&g_is31fl3731_leds[index]), sizeof(led));

        // Subtract 0x24 to get the second index of g_pwm_buffer
        if (g_pwm_buffer[led.driver][led.r - 0x24] == red && g_pwm_buffer[led.driver][led.g - 0x24] == green && g_pwm_buffer[led.driver][led.b - 0x24] == blue) {
@ -195,14 +186,14 @@ void is31fl3731_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
 }

 void is31fl3731_set_color_all(uint8_t red, uint8_t green, uint8_t blue) {
-    for (int i = 0; i < RGB_MATRIX_LED_COUNT; i++) {
+    for (int i = 0; i < IS31FL3731_LED_COUNT; i++) {
        is31fl3731_set_color(i, red, green, blue);
    }
 }

 void is31fl3731_set_led_control_register(uint8_t index, bool red, bool green, bool blue) {
-    is31_led led;
-    memcpy_P(&led, (&g_is31_leds[index]), sizeof(led));
+    is31fl3731_led_t led;
+    memcpy_P(&led, (&g_is31fl3731_leds[index]), sizeof(led));

    uint8_t control_register_r = (led.r - 0x24) / 8;
    uint8_t control_register_g = (led.g - 0x24) / 8;
@ -239,9 +230,22 @@ void is31fl3731_update_pwm_buffers(uint8_t addr, uint8_t index) {

 void is31fl3731_update_led_control_registers(uint8_t addr, uint8_t index) {
    if (g_led_control_registers_update_required[index]) {
-        for (int i = 0; i < 18; i++) {
+        for (int i = 0; i < IS31FL3731_LED_CONTROL_REGISTER_COUNT; i++) {
            is31fl3731_write_register(addr, i, g_led_control_registers[index][i]);
        }
    }
    g_led_control_registers_update_required[index] = false;
 }
+
+void is31fl3731_flush(void) {
+    is31fl3731_update_pwm_buffers(IS31FL3731_I2C_ADDRESS_1, 0);
+#if defined(IS31FL3731_I2C_ADDRESS_2)
+    is31fl3731_update_pwm_buffers(IS31FL3731_I2C_ADDRESS_2, 1);
+#    if defined(IS31FL3731_I2C_ADDRESS_3)
+    is31fl3731_update_pwm_buffers(IS31FL3731_I2C_ADDRESS_3, 2);
+#        if defined(IS31FL3731_I2C_ADDRESS_4)
+    is31fl3731_update_pwm_buffers(IS31FL3731_I2C_ADDRESS_4, 3);
+#        endif
+#    endif
+#endif
+}
--- a/drivers/led/issi/is31fl3731.h
+++ b/drivers/led/issi/is31fl3731.h
@ -19,18 +19,89 @@

 #include <stdint.h>
 #include <stdbool.h>
-#include <string.h>
 #include "progmem.h"
+#include "util.h"

-typedef struct is31_led {
+// ======== DEPRECATED DEFINES - DO NOT USE ========
+#ifdef DRIVER_ADDR_1
+#    define IS31FL3731_I2C_ADDRESS_1 DRIVER_ADDR_1
+#endif
+#ifdef DRIVER_ADDR_2
+#    define IS31FL3731_I2C_ADDRESS_2 DRIVER_ADDR_2
+#endif
+#ifdef DRIVER_ADDR_3
+#    define IS31FL3731_I2C_ADDRESS_3 DRIVER_ADDR_3
+#endif
+#ifdef DRIVER_ADDR_4
+#    define IS31FL3731_I2C_ADDRESS_4 DRIVER_ADDR_4
+#endif
+#ifdef ISSI_TIMEOUT
+#    define IS31FL3731_I2C_TIMEOUT ISSI_TIMEOUT
+#endif
+#ifdef ISSI_PERSISTENCE
+#    define IS31FL3731_I2C_PERSISTENCE ISSI_PERSISTENCE
+#endif
+#ifdef ISSI_3731_DEGHOST
+#    define IS31FL3731_DEGHOST ISSI_3731_DEGHOST
+#endif
+
+#define is31_led is31fl3731_led_t
+#define g_is31_leds g_is31fl3731_leds
+// ========
+
+#define IS31FL3731_REG_COMMAND 0xFD
+#define IS31FL3731_COMMAND_FRAME_1 0x00
+#define IS31FL3731_COMMAND_FRAME_2 0x01
+#define IS31FL3731_COMMAND_FRAME_3 0x02
+#define IS31FL3731_COMMAND_FRAME_4 0x03
+#define IS31FL3731_COMMAND_FRAME_5 0x04
+#define IS31FL3731_COMMAND_FRAME_6 0x05
+#define IS31FL3731_COMMAND_FRAME_7 0x06
+#define IS31FL3731_COMMAND_FRAME_8 0x07
+#define IS31FL3731_COMMAND_FUNCTION 0x0B
+
+#define IS31FL3731_FUNCTION_REG_CONFIG 0x00
+#define IS31FL3731_CONFIG_MODE_PICTURE 0x00
+#define IS31FL3731_CONFIG_MODE_AUTO_PLAY 0x08
+#define IS31FL3731_CONFIG_MODE_AUDIO_PLAY 0x18
+
+#define IS31FL3731_FUNCTION_REG_PICTURE_DISPLAY 0x01
+#define IS31FL3731_FUNCTION_REG_AUDIO_SYNC 0x06
+#define IS31FL3731_FUNCTION_REG_SHUTDOWN 0x0A
+
+// Not defined in the datasheet -- See AN for IC
+#define IS31FL3731_FUNCTION_REG_GHOST_IMAGE_PREVENTION 0xC2
+#define IS31FL3731_GHOST_IMAGE_PREVENTION_GEN 0x10
+
+#define IS31FL3731_I2C_ADDRESS_GND 0x74
+#define IS31FL3731_I2C_ADDRESS_SCL 0x75
+#define IS31FL3731_I2C_ADDRESS_SDA 0x76
+#define IS31FL3731_I2C_ADDRESS_VCC 0x77
+
+#if defined(RGB_MATRIX_IS31FL3731)
+#    define IS31FL3731_LED_COUNT RGB_MATRIX_LED_COUNT
+#endif
+
+#if defined(IS31FL3731_I2C_ADDRESS_4)
+#    define IS31FL3731_DRIVER_COUNT 4
+#elif defined(IS31FL3731_I2C_ADDRESS_3)
+#    define IS31FL3731_DRIVER_COUNT 3
+#elif defined(IS31FL3731_I2C_ADDRESS_2)
+#    define IS31FL3731_DRIVER_COUNT 2
+#elif defined(IS31FL3731_I2C_ADDRESS_1)
+#    define IS31FL3731_DRIVER_COUNT 1
+#endif
+
+typedef struct is31fl3731_led_t {
    uint8_t driver : 2;
    uint8_t r;
    uint8_t g;
    uint8_t b;
-} __attribute__((packed)) is31_led;
+} PACKED is31fl3731_led_t;

-extern const is31_led PROGMEM g_is31_leds[RGB_MATRIX_LED_COUNT];
+extern const is31fl3731_led_t PROGMEM g_is31fl3731_leds[IS31FL3731_LED_COUNT];

+void is31fl3731_init_drivers(void);
 void is31fl3731_init(uint8_t addr);
 void is31fl3731_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
@ -47,6 +118,8 @@ void is31fl3731_set_led_control_register(uint8_t index, bool red, bool green, bo
 void is31fl3731_update_pwm_buffers(uint8_t addr, uint8_t index);
 void is31fl3731_update_led_control_registers(uint8_t addr, uint8_t index);

+void is31fl3731_flush(void);
+
 #define C1_1 0x24
 #define C1_2 0x25
 #define C1_3 0x26
--- a/drivers/led/issi/is31fl3733-simple.c
+++ b/drivers/led/issi/is31fl3733-simple.c
@ -19,59 +19,48 @@
 */

 #include "is31fl3733-simple.h"
+#include <string.h>
 #include "i2c_master.h"
 #include "wait.h"

-// This is a 7-bit address, that gets left-shifted and bit 0
-// set to 0 for write, 1 for read (as per I2C protocol)
-// The address will vary depending on your wiring:
-// 00 <-> GND
-// 01 <-> SCL
-// 10 <-> SDA
-// 11 <-> VCC
-// ADDR1 represents A1:A0 of the 7-bit address.
-// ADDR2 represents A3:A2 of the 7-bit address.
-// The result is: 0b101(ADDR2)(ADDR1)
-#define ISSI_ADDR_DEFAULT 0x50
+#define IS31FL3733_PWM_REGISTER_COUNT 192
+#define IS31FL3733_LED_CONTROL_REGISTER_COUNT 24

-#define ISSI_COMMANDREGISTER 0xFD
-#define ISSI_COMMANDREGISTER_WRITELOCK 0xFE
-#define ISSI_INTERRUPTMASKREGISTER 0xF0
-#define ISSI_INTERRUPTSTATUSREGISTER 0xF1
-
-#define ISSI_PAGE_LEDCONTROL 0x00 // PG0
-#define ISSI_PAGE_PWM 0x01        // PG1
-#define ISSI_PAGE_AUTOBREATH 0x02 // PG2
-#define ISSI_PAGE_FUNCTION 0x03   // PG3
-
-#define ISSI_REG_CONFIGURATION 0x00 // PG3
-#define ISSI_REG_GLOBALCURRENT 0x01 // PG3
-#define ISSI_REG_RESET 0x11         // PG3
-#define ISSI_REG_SWPULLUP 0x0F      // PG3
-#define ISSI_REG_CSPULLUP 0x10      // PG3
-
-#ifndef ISSI_TIMEOUT
-#    define ISSI_TIMEOUT 100
+#ifndef IS31FL3733_I2C_TIMEOUT
+#    define IS31FL3733_I2C_TIMEOUT 100
 #endif

-#ifndef ISSI_PERSISTENCE
-#    define ISSI_PERSISTENCE 0
+#ifndef IS31FL3733_I2C_PERSISTENCE
+#    define IS31FL3733_I2C_PERSISTENCE 0
 #endif

-#ifndef ISSI_PWM_FREQUENCY
-#    define ISSI_PWM_FREQUENCY 0b000 // PFS - IS31FL3733B only
+#ifndef IS31FL3733_PWM_FREQUENCY
+#    define IS31FL3733_PWM_FREQUENCY IS31FL3733_PWM_FREQUENCY_8K4_HZ // PFS - IS31FL3733B only
 #endif

-#ifndef ISSI_SWPULLUP
-#    define ISSI_SWPULLUP PUR_0R
+#ifndef IS31FL3733_SW_PULLUP
+#    define IS31FL3733_SW_PULLUP IS31FL3733_PUR_0_OHM
 #endif

-#ifndef ISSI_CSPULLUP
-#    define ISSI_CSPULLUP PUR_0R
+#ifndef IS31FL3733_CS_PULLDOWN
+#    define IS31FL3733_CSPULLDOWN IS31FL3733_PDR_0_OHM
 #endif

-#ifndef ISSI_GLOBALCURRENT
-#    define ISSI_GLOBALCURRENT 0xFF
+#ifndef IS31FL3733_GLOBAL_CURRENT
+#    define IS31FL3733_GLOBAL_CURRENT 0xFF
+#endif
+
+#ifndef IS31FL3733_SYNC_1
+#    define IS31FL3733_SYNC_1 IS31FL3733_SYNC_NONE
+#endif
+#ifndef IS31FL3733_SYNC_2
+#    define IS31FL3733_SYNC_2 IS31FL3733_SYNC_NONE
+#endif
+#ifndef IS31FL3733_SYNC_3
+#    define IS31FL3733_SYNC_3 IS31FL3733_SYNC_NONE
+#endif
+#ifndef IS31FL3733_SYNC_4
+#    define IS31FL3733_SYNC_4 IS31FL3733_SYNC_NONE
 #endif

 // Transfer buffer for TWITransmitData()
@ -83,34 +72,25 @@ uint8_t g_twi_transfer_buffer[20];
 // We could optimize this and take out the unused registers from these
 // buffers and the transfers in is31fl3733_write_pwm_buffer() but it's
 // probably not worth the extra complexity.
-uint8_t g_pwm_buffer[LED_DRIVER_COUNT][192];
-bool    g_pwm_buffer_update_required[LED_DRIVER_COUNT] = {false};
+uint8_t g_pwm_buffer[IS31FL3733_DRIVER_COUNT][IS31FL3733_PWM_REGISTER_COUNT];
+bool    g_pwm_buffer_update_required[IS31FL3733_DRIVER_COUNT] = {false};

-/* There's probably a better way to init this... */
-#if LED_DRIVER_COUNT == 1
-uint8_t g_led_control_registers[LED_DRIVER_COUNT][24] = {{0}};
-#elif LED_DRIVER_COUNT == 2
-uint8_t g_led_control_registers[LED_DRIVER_COUNT][24] = {{0}, {0}};
-#elif LED_DRIVER_COUNT == 3
-uint8_t g_led_control_registers[LED_DRIVER_COUNT][24] = {{0}, {0}, {0}};
-#elif LED_DRIVER_COUNT == 4
-uint8_t g_led_control_registers[LED_DRIVER_COUNT][24] = {{0}, {0}, {0}, {0}};
-#endif
-bool g_led_control_registers_update_required[LED_DRIVER_COUNT] = {false};
+uint8_t g_led_control_registers[IS31FL3733_DRIVER_COUNT][IS31FL3733_LED_CONTROL_REGISTER_COUNT] = {0};
+bool    g_led_control_registers_update_required[IS31FL3733_DRIVER_COUNT]                        = {false};

 bool is31fl3733_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
    // If the transaction fails function returns false.
    g_twi_transfer_buffer[0] = reg;
    g_twi_transfer_buffer[1] = data;

-#if ISSI_PERSISTENCE > 0
-    for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
-        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT) != 0) {
+#if IS31FL3733_I2C_PERSISTENCE > 0
+    for (uint8_t i = 0; i < IS31FL3733_I2C_PERSISTENCE; i++) {
+        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, IS31FL3733_I2C_TIMEOUT) != 0) {
            return false;
        }
    }
 #else
-    if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT) != 0) {
+    if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, IS31FL3733_I2C_TIMEOUT) != 0) {
        return false;
    }
 #endif
@ -124,21 +104,21 @@ bool is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
    // g_twi_transfer_buffer[] is 20 bytes

    // Iterate over the pwm_buffer contents at 16 byte intervals.
-    for (int i = 0; i < 192; i += 16) {
+    for (int i = 0; i < IS31FL3733_PWM_REGISTER_COUNT; i += 16) {
        g_twi_transfer_buffer[0] = i;
        // Copy the data from i to i+15.
        // Device will auto-increment register for data after the first byte
        // Thus this sets registers 0x00-0x0F, 0x10-0x1F, etc. in one transfer.
        memcpy(g_twi_transfer_buffer + 1, pwm_buffer + i, 16);

-#if ISSI_PERSISTENCE > 0
-        for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
-            if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT) != 0) {
+#if IS31FL3733_I2C_PERSISTENCE > 0
+        for (uint8_t i = 0; i < IS31FL3733_I2C_PERSISTENCE; i++) {
+            if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, IS31FL3733_I2C_TIMEOUT) != 0) {
                return false;
            }
        }
 #else
-        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT) != 0) {
+        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, IS31FL3733_I2C_TIMEOUT) != 0) {
            return false;
        }
 #endif
@ -146,6 +126,36 @@ bool is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
    return true;
 }

+void is31fl3733_init_drivers(void) {
+    i2c_init();
+
+    is31fl3733_init(IS31FL3733_I2C_ADDRESS_1, IS31FL3733_SYNC_1);
+#if defined(IS31FL3733_I2C_ADDRESS_2)
+    is31fl3733_init(IS31FL3733_I2C_ADDRESS_2, IS31FL3733_SYNC_2);
+#    if defined(IS31FL3733_I2C_ADDRESS_3)
+    is31fl3733_init(IS31FL3733_I2C_ADDRESS_3, IS31FL3733_SYNC_3);
+#        if defined(IS31FL3733_I2C_ADDRESS_4)
+    is31fl3733_init(IS31FL3733_I2C_ADDRESS_4, IS31FL3733_SYNC_4);
+#        endif
+#    endif
+#endif
+
+    for (int i = 0; i < IS31FL3733_LED_COUNT; i++) {
+        is31fl3733_set_led_control_register(i, true);
+    }
+
+    is31fl3733_update_led_control_registers(IS31FL3733_I2C_ADDRESS_1, 0);
+#if defined(IS31FL3733_I2C_ADDRESS_2)
+    is31fl3733_update_led_control_registers(IS31FL3733_I2C_ADDRESS_2, 1);
+#    if defined(IS31FL3733_I2C_ADDRESS_3)
+    is31fl3733_update_led_control_registers(IS31FL3733_I2C_ADDRESS_3, 2);
+#        if defined(IS31FL3733_I2C_ADDRESS_4)
+    is31fl3733_update_led_control_registers(IS31FL3733_I2C_ADDRESS_4, 3);
+#        endif
+#    endif
+#endif
+}
+
 void is31fl3733_init(uint8_t addr, uint8_t sync) {
    // In order to avoid the LEDs being driven with garbage data
    // in the LED driver's PWM registers, shutdown is enabled last.
@ -154,48 +164,48 @@ void is31fl3733_init(uint8_t addr, uint8_t sync) {
    // Sync is passed so set it according to the datasheet.

    // Unlock the command register.
-    is31fl3733_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);

    // Select PG0
-    is31fl3733_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL);
+    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_LED_CONTROL);
    // Turn off all LEDs.
-    for (int i = 0x00; i <= 0x17; i++) {
+    for (int i = 0; i < IS31FL3733_LED_CONTROL_REGISTER_COUNT; i++) {
        is31fl3733_write_register(addr, i, 0x00);
    }

    // Unlock the command register.
-    is31fl3733_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);

    // Select PG1
-    is31fl3733_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM);
+    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_PWM);
    // Set PWM on all LEDs to 0
    // No need to setup Breath registers to PWM as that is the default.
-    for (int i = 0x00; i <= 0xBF; i++) {
+    for (int i = 0; i < IS31FL3733_PWM_REGISTER_COUNT; i++) {
        is31fl3733_write_register(addr, i, 0x00);
    }

    // Unlock the command register.
-    is31fl3733_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);

    // Select PG3
-    is31fl3733_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_FUNCTION);
+    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_FUNCTION);
    // Set de-ghost pull-up resistors (SWx)
-    is31fl3733_write_register(addr, ISSI_REG_SWPULLUP, ISSI_SWPULLUP);
+    is31fl3733_write_register(addr, IS31FL3733_FUNCTION_REG_SW_PULLUP, IS31FL3733_SW_PULLUP);
    // Set de-ghost pull-down resistors (CSx)
-    is31fl3733_write_register(addr, ISSI_REG_CSPULLUP, ISSI_CSPULLUP);
+    is31fl3733_write_register(addr, IS31FL3733_FUNCTION_REG_CS_PULLDOWN, IS31FL3733_CS_PULLDOWN);
    // Set global current to maximum.
-    is31fl3733_write_register(addr, ISSI_REG_GLOBALCURRENT, ISSI_GLOBALCURRENT);
+    is31fl3733_write_register(addr, IS31FL3733_FUNCTION_REG_GLOBAL_CURRENT, IS31FL3733_GLOBAL_CURRENT);
    // Disable software shutdown.
-    is31fl3733_write_register(addr, ISSI_REG_CONFIGURATION, ((sync & 0b11) << 6) | ((ISSI_PWM_FREQUENCY & 0b111) << 3) | 0x01);
+    is31fl3733_write_register(addr, IS31FL3733_FUNCTION_REG_CONFIGURATION, ((sync & 0b11) << 6) | ((IS31FL3733_PWM_FREQUENCY & 0b111) << 3) | 0x01);

    // Wait 10ms to ensure the device has woken up.
    wait_ms(10);
 }

 void is31fl3733_set_value(int index, uint8_t value) {
-    is31_led led;
-    if (index >= 0 && index < LED_MATRIX_LED_COUNT) {
-        memcpy_P(&led, (&g_is31_leds[index]), sizeof(led));
+    is31fl3733_led_t led;
+    if (index >= 0 && index < IS31FL3733_LED_COUNT) {
+        memcpy_P(&led, (&g_is31fl3733_leds[index]), sizeof(led));

        if (g_pwm_buffer[led.driver][led.v] == value) {
            return;
@ -206,14 +216,14 @@ void is31fl3733_set_value(int index, uint8_t value) {
 }

 void is31fl3733_set_value_all(uint8_t value) {
-    for (int i = 0; i < LED_MATRIX_LED_COUNT; i++) {
+    for (int i = 0; i < IS31FL3733_LED_COUNT; i++) {
        is31fl3733_set_value(i, value);
    }
 }

 void is31fl3733_set_led_control_register(uint8_t index, bool value) {
-    is31_led led;
-    memcpy_P(&led, (&g_is31_leds[index]), sizeof(led));
+    is31fl3733_led_t led;
+    memcpy_P(&led, (&g_is31fl3733_leds[index]), sizeof(led));

    uint8_t control_register = led.v / 8;
    uint8_t bit_value        = led.v % 8;
@ -230,8 +240,8 @@ void is31fl3733_set_led_control_register(uint8_t index, bool value) {
 void is31fl3733_update_pwm_buffers(uint8_t addr, uint8_t index) {
    if (g_pwm_buffer_update_required[index]) {
        // Firstly we need to unlock the command register and select PG1.
-        is31fl3733_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
-        is31fl3733_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM);
+        is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
+        is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_PWM);

        // If any of the transactions fail we risk writing dirty PG0,
        // refresh page 0 just in case.
@ -245,11 +255,24 @@ void is31fl3733_update_pwm_buffers(uint8_t addr, uint8_t index) {
 void is31fl3733_update_led_control_registers(uint8_t addr, uint8_t index) {
    if (g_led_control_registers_update_required[index]) {
        // Firstly we need to unlock the command register and select PG0
-        is31fl3733_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
-        is31fl3733_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL);
-        for (int i = 0; i < 24; i++) {
+        is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
+        is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_LED_CONTROL);
+        for (int i = 0; i < IS31FL3733_LED_CONTROL_REGISTER_COUNT; i++) {
            is31fl3733_write_register(addr, i, g_led_control_registers[index][i]);
        }
        g_led_control_registers_update_required[index] = false;
    }
 }
+
+void is31fl3733_flush(void) {
+    is31fl3733_update_pwm_buffers(IS31FL3733_I2C_ADDRESS_1, 0);
+#if defined(IS31FL3733_I2C_ADDRESS_2)
+    is31fl3733_update_pwm_buffers(IS31FL3733_I2C_ADDRESS_2, 1);
+#    if defined(IS31FL3733_I2C_ADDRESS_3)
+    is31fl3733_update_pwm_buffers(IS31FL3733_I2C_ADDRESS_3, 2);
+#        if defined(IS31FL3733_I2C_ADDRESS_4)
+    is31fl3733_update_pwm_buffers(IS31FL3733_I2C_ADDRESS_4, 3);
+#        endif
+#    endif
+#endif
+}
--- a/drivers/led/issi/is31fl3733-simple.h
+++ b/drivers/led/issi/is31fl3733-simple.h
@ -22,16 +22,99 @@

 #include <stdint.h>
 #include <stdbool.h>
-#include <string.h>
 #include "progmem.h"
+#include "util.h"

-typedef struct is31_led {
+// ======== DEPRECATED DEFINES - DO NOT USE ========
+#ifdef ISSI_TIMEOUT
+#    define IS31FL3733_I2C_TIMEOUT ISSI_TIMEOUT
+#endif
+#ifdef ISSI_PERSISTENCE
+#    define IS31FL3733_I2C_PERSISTENCE ISSI_PERSISTENCE
+#endif
+#ifdef ISSI_PWM_FREQUENCY
+#    define IS31FL3733_PWM_FREQUENCY ISSI_PWM_FREQUENCY
+#endif
+#ifdef ISSI_SWPULLUP
+#    define IS31FL3733_SW_PULLUP ISSI_SWPULLUP
+#endif
+#ifdef ISSI_CSPULLUP
+#    define IS31FL3733_CS_PULLDOWN ISSI_CSPULLUP
+#endif
+#ifdef ISSI_GLOBALCURRENT
+#    define IS31FL3733_GLOBAL_CURRENT ISSI_GLOBALCURRENT
+#endif
+
+#define is31_led is31fl3733_led_t
+#define g_is31_leds g_is31fl3733_leds
+
+#define PUR_0R IS31FL3733_PUR_0_OHM
+#define PUR_05KR IS31FL3733_PUR_1K_OHM
+#define PUR_3KR IS31FL3733_PUR_2K_OHM
+#define PUR_4KR IS31FL3733_PUR_4K_OHM
+#define PUR_8KR IS31FL3733_PUR_8K_OHM
+#define PUR_16KR IS31FL3733_PUR_16K_OHM
+#define PUR_32KR IS31FL3733_PUR_32K_OHM
+// ========
+
+#define IS31FL3733_REG_INTERRUPT_MASK 0xF0
+#define IS31FL3733_REG_INTERRUPT_STATUS 0xF1
+
+#define IS31FL3733_REG_COMMAND 0xFD
+
+#define IS31FL3733_COMMAND_LED_CONTROL 0x00
+#define IS31FL3733_COMMAND_PWM 0x01
+#define IS31FL3733_COMMAND_AUTO_BREATH 0x02
+#define IS31FL3733_COMMAND_FUNCTION 0x03
+
+#define IS31FL3733_FUNCTION_REG_CONFIGURATION 0x00
+#define IS31FL3733_FUNCTION_REG_GLOBAL_CURRENT 0x01
+#define IS31FL3733_FUNCTION_REG_SW_PULLUP 0x0F
+#define IS31FL3733_FUNCTION_REG_CS_PULLDOWN 0x10
+#define IS31FL3733_FUNCTION_REG_RESET 0x11
+
+#define IS31FL3733_REG_COMMAND_WRITE_LOCK 0xFE
+#define IS31FL3733_COMMAND_WRITE_LOCK_MAGIC 0xC5
+
+#define IS31FL3733_I2C_ADDRESS_GND_GND 0x50
+#define IS31FL3733_I2C_ADDRESS_GND_SCL 0x51
+#define IS31FL3733_I2C_ADDRESS_GND_SDA 0x52
+#define IS31FL3733_I2C_ADDRESS_GND_VCC 0x53
+#define IS31FL3733_I2C_ADDRESS_SCL_GND 0x54
+#define IS31FL3733_I2C_ADDRESS_SCL_SCL 0x55
+#define IS31FL3733_I2C_ADDRESS_SCL_SDA 0x56
+#define IS31FL3733_I2C_ADDRESS_SCL_VCC 0x57
+#define IS31FL3733_I2C_ADDRESS_SDA_GND 0x58
+#define IS31FL3733_I2C_ADDRESS_SDA_SCL 0x59
+#define IS31FL3733_I2C_ADDRESS_SDA_SDA 0x5A
+#define IS31FL3733_I2C_ADDRESS_SDA_VCC 0x5B
+#define IS31FL3733_I2C_ADDRESS_VCC_GND 0x5C
+#define IS31FL3733_I2C_ADDRESS_VCC_SCL 0x5D
+#define IS31FL3733_I2C_ADDRESS_VCC_SDA 0x5E
+#define IS31FL3733_I2C_ADDRESS_VCC_VCC 0x5F
+
+#if defined(LED_MATRIX_IS31FL3733)
+#    define IS31FL3733_LED_COUNT LED_MATRIX_LED_COUNT
+#endif
+
+#if defined(IS31FL3733_I2C_ADDRESS_4)
+#    define IS31FL3733_DRIVER_COUNT 4
+#elif defined(IS31FL3733_I2C_ADDRESS_3)
+#    define IS31FL3733_DRIVER_COUNT 3
+#elif defined(IS31FL3733_I2C_ADDRESS_2)
+#    define IS31FL3733_DRIVER_COUNT 2
+#elif defined(IS31FL3733_I2C_ADDRESS_1)
+#    define IS31FL3733_DRIVER_COUNT 1
+#endif
+
+typedef struct is31fl3733_led_t {
    uint8_t driver : 2;
    uint8_t v;
-} __attribute__((packed)) is31_led;
+} PACKED is31fl3733_led_t;

-extern const is31_led PROGMEM g_is31_leds[LED_MATRIX_LED_COUNT];
+extern const is31fl3733_led_t PROGMEM g_is31fl3733_leds[IS31FL3733_LED_COUNT];

+void is31fl3733_init_drivers(void);
 void is31fl3733_init(uint8_t addr, uint8_t sync);
 bool is31fl3733_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 bool is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
@ -48,13 +131,35 @@ void is31fl3733_set_led_control_register(uint8_t index, bool value);
 void is31fl3733_update_pwm_buffers(uint8_t addr, uint8_t index);
 void is31fl3733_update_led_control_registers(uint8_t addr, uint8_t index);

-#define PUR_0R 0x00   // No PUR resistor
-#define PUR_05KR 0x02 // 0.5k Ohm resistor in t_NOL
-#define PUR_3KR 0x03  // 3.0k Ohm resistor on all the time
-#define PUR_4KR 0x04  // 4.0k Ohm resistor on all the time
-#define PUR_8KR 0x05  // 8.0k Ohm resistor on all the time
-#define PUR_16KR 0x06 // 16k Ohm resistor on all the time
-#define PUR_32KR 0x07 // 32k Ohm resistor in t_NOL
+void is31fl3733_flush(void);
+
+#define IS31FL3733_PDR_0_OHM 0b000   // No pull-down resistor
+#define IS31FL3733_PDR_0K5_OHM 0b001 // 0.5 kOhm resistor
+#define IS31FL3733_PDR_1K_OHM 0b010  // 1 kOhm resistor
+#define IS31FL3733_PDR_2K_OHM 0b011  // 2 kOhm resistor
+#define IS31FL3733_PDR_4K_OHM 0b100  // 4 kOhm resistor
+#define IS31FL3733_PDR_8K_OHM 0b101  // 8 kOhm resistor
+#define IS31FL3733_PDR_16K_OHM 0b110 // 16 kOhm resistor
+#define IS31FL3733_PDR_32K_OHM 0b111 // 32 kOhm resistor
+
+#define IS31FL3733_PUR_0_OHM 0b000   // No pull-up resistor
+#define IS31FL3733_PUR_0K5_OHM 0b001 // 0.5 kOhm resistor
+#define IS31FL3733_PUR_1K_OHM 0b010  // 1 kOhm resistor
+#define IS31FL3733_PUR_2K_OHM 0b011  // 2 kOhm resistor
+#define IS31FL3733_PUR_4K_OHM 0b100  // 4 kOhm resistor
+#define IS31FL3733_PUR_8K_OHM 0b101  // 8 kOhm resistor
+#define IS31FL3733_PUR_16K_OHM 0b110 // 16 kOhm resistor
+#define IS31FL3733_PUR_32K_OHM 0b111 // 32 kOhm resistor
+
+#define IS31FL3733_PWM_FREQUENCY_8K4_HZ 0b000
+#define IS31FL3733_PWM_FREQUENCY_4K2_HZ 0b001
+#define IS31FL3733_PWM_FREQUENCY_26K7_HZ 0b010
+#define IS31FL3733_PWM_FREQUENCY_2K1_HZ 0b011
+#define IS31FL3733_PWM_FREQUENCY_1K05_HZ 0b100
+
+#define IS31FL3733_SYNC_NONE 0b00
+#define IS31FL3733_SYNC_MASTER 0b01
+#define IS31FL3733_SYNC_SLAVE 0b10

 #define A_1 0x00
 #define A_2 0x01
--- a/drivers/led/issi/is31fl3733.c
+++ b/drivers/led/issi/is31fl3733.c
@ -18,59 +18,48 @@
 */

 #include "is31fl3733.h"
+#include <string.h>
 #include "i2c_master.h"
 #include "wait.h"

-// This is a 7-bit address, that gets left-shifted and bit 0
-// set to 0 for write, 1 for read (as per I2C protocol)
-// The address will vary depending on your wiring:
-// 00 <-> GND
-// 01 <-> SCL
-// 10 <-> SDA
-// 11 <-> VCC
-// ADDR1 represents A1:A0 of the 7-bit address.
-// ADDR2 represents A3:A2 of the 7-bit address.
-// The result is: 0b101(ADDR2)(ADDR1)
-#define ISSI_ADDR_DEFAULT 0x50
+#define IS31FL3733_PWM_REGISTER_COUNT 192
+#define IS31FL3733_LED_CONTROL_REGISTER_COUNT 24

-#define ISSI_COMMANDREGISTER 0xFD
-#define ISSI_COMMANDREGISTER_WRITELOCK 0xFE
-#define ISSI_INTERRUPTMASKREGISTER 0xF0
-#define ISSI_INTERRUPTSTATUSREGISTER 0xF1
-
-#define ISSI_PAGE_LEDCONTROL 0x00 // PG0
-#define ISSI_PAGE_PWM 0x01        // PG1
-#define ISSI_PAGE_AUTOBREATH 0x02 // PG2
-#define ISSI_PAGE_FUNCTION 0x03   // PG3
-
-#define ISSI_REG_CONFIGURATION 0x00 // PG3
-#define ISSI_REG_GLOBALCURRENT 0x01 // PG3
-#define ISSI_REG_RESET 0x11         // PG3
-#define ISSI_REG_SWPULLUP 0x0F      // PG3
-#define ISSI_REG_CSPULLUP 0x10      // PG3
-
-#ifndef ISSI_TIMEOUT
-#    define ISSI_TIMEOUT 100
+#ifndef IS31FL3733_I2C_TIMEOUT
+#    define IS31FL3733_I2C_TIMEOUT 100
 #endif

-#ifndef ISSI_PERSISTENCE
-#    define ISSI_PERSISTENCE 0
+#ifndef IS31FL3733_I2C_PERSISTENCE
+#    define IS31FL3733_I2C_PERSISTENCE 0
 #endif

-#ifndef ISSI_PWM_FREQUENCY
-#    define ISSI_PWM_FREQUENCY 0b000 // PFS - IS31FL3733B only
+#ifndef IS31FL3733_PWM_FREQUENCY
+#    define IS31FL3733_PWM_FREQUENCY IS31FL3733_PWM_FREQUENCY_8K4_HZ // PFS - IS31FL3733B only
 #endif

-#ifndef ISSI_SWPULLUP
-#    define ISSI_SWPULLUP PUR_0R
+#ifndef IS31FL3733_SW_PULLUP
+#    define IS31FL3733_SW_PULLUP IS31FL3733_PUR_0_OHM
 #endif

-#ifndef ISSI_CSPULLUP
-#    define ISSI_CSPULLUP PUR_0R
+#ifndef IS31FL3733_CS_PULLDOWN
+#    define IS31FL3733_CS_PULLDOWN IS31FL3733_PDR_0_OHM
 #endif

-#ifndef ISSI_GLOBALCURRENT
-#    define ISSI_GLOBALCURRENT 0xFF
+#ifndef IS31FL3733_GLOBAL_CURRENT
+#    define IS31FL3733_GLOBAL_CURRENT 0xFF
+#endif
+
+#ifndef IS31FL3733_SYNC_1
+#    define IS31FL3733_SYNC_1 IS31FL3733_SYNC_NONE
+#endif
+#ifndef IS31FL3733_SYNC_2
+#    define IS31FL3733_SYNC_2 IS31FL3733_SYNC_NONE
+#endif
+#ifndef IS31FL3733_SYNC_3
+#    define IS31FL3733_SYNC_3 IS31FL3733_SYNC_NONE
+#endif
+#ifndef IS31FL3733_SYNC_4
+#    define IS31FL3733_SYNC_4 IS31FL3733_SYNC_NONE
 #endif

 // Transfer buffer for TWITransmitData()
@ -82,25 +71,25 @@ uint8_t g_twi_transfer_buffer[20];
 // We could optimize this and take out the unused registers from these
 // buffers and the transfers in is31fl3733_write_pwm_buffer() but it's
 // probably not worth the extra complexity.
-uint8_t g_pwm_buffer[DRIVER_COUNT][192];
-bool    g_pwm_buffer_update_required[DRIVER_COUNT] = {false};
+uint8_t g_pwm_buffer[IS31FL3733_DRIVER_COUNT][IS31FL3733_PWM_REGISTER_COUNT];
+bool    g_pwm_buffer_update_required[IS31FL3733_DRIVER_COUNT] = {false};

-uint8_t g_led_control_registers[DRIVER_COUNT][24]             = {0};
-bool    g_led_control_registers_update_required[DRIVER_COUNT] = {false};
+uint8_t g_led_control_registers[IS31FL3733_DRIVER_COUNT][IS31FL3733_LED_CONTROL_REGISTER_COUNT] = {0};
+bool    g_led_control_registers_update_required[IS31FL3733_DRIVER_COUNT]                        = {false};

 bool is31fl3733_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
    // If the transaction fails function returns false.
    g_twi_transfer_buffer[0] = reg;
    g_twi_transfer_buffer[1] = data;

-#if ISSI_PERSISTENCE > 0
-    for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
-        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT) != 0) {
+#if IS31FL3733_I2C_PERSISTENCE > 0
+    for (uint8_t i = 0; i < IS31FL3733_I2C_PERSISTENCE; i++) {
+        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, IS31FL3733_I2C_TIMEOUT) != 0) {
            return false;
        }
    }
 #else
-    if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT) != 0) {
+    if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, IS31FL3733_I2C_TIMEOUT) != 0) {
        return false;
    }
 #endif
@ -114,23 +103,21 @@ bool is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
    // g_twi_transfer_buffer[] is 20 bytes

    // Iterate over the pwm_buffer contents at 16 byte intervals.
-    for (int i = 0; i < 192; i += 16) {
+    for (int i = 0; i < IS31FL3733_PWM_REGISTER_COUNT; i += 16) {
        g_twi_transfer_buffer[0] = i;
        // Copy the data from i to i+15.
        // Device will auto-increment register for data after the first byte
        // Thus this sets registers 0x00-0x0F, 0x10-0x1F, etc. in one transfer.
-        for (int j = 0; j < 16; j++) {
-            g_twi_transfer_buffer[1 + j] = pwm_buffer[i + j];
-        }
+        memcpy(g_twi_transfer_buffer + 1, pwm_buffer + i, 16);

-#if ISSI_PERSISTENCE > 0
-        for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
-            if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT) != 0) {
+#if IS31FL3733_I2C_PERSISTENCE > 0
+        for (uint8_t i = 0; i < IS31FL3733_I2C_PERSISTENCE; i++) {
+            if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, IS31FL3733_I2C_TIMEOUT) != 0) {
                return false;
            }
        }
 #else
-        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT) != 0) {
+        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, IS31FL3733_I2C_TIMEOUT) != 0) {
            return false;
        }
 #endif
@ -138,6 +125,36 @@ bool is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
    return true;
 }

+void is31fl3733_init_drivers(void) {
+    i2c_init();
+
+    is31fl3733_init(IS31FL3733_I2C_ADDRESS_1, IS31FL3733_SYNC_1);
+#if defined(IS31FL3733_I2C_ADDRESS_2)
+    is31fl3733_init(IS31FL3733_I2C_ADDRESS_2, IS31FL3733_SYNC_2);
+#    if defined(IS31FL3733_I2C_ADDRESS_3)
+    is31fl3733_init(IS31FL3733_I2C_ADDRESS_3, IS31FL3733_SYNC_3);
+#        if defined(IS31FL3733_I2C_ADDRESS_4)
+    is31fl3733_init(IS31FL3733_I2C_ADDRESS_4, IS31FL3733_SYNC_4);
+#        endif
+#    endif
+#endif
+
+    for (int i = 0; i < IS31FL3733_LED_COUNT; i++) {
+        is31fl3733_set_led_control_register(i, true, true, true);
+    }
+
+    is31fl3733_update_led_control_registers(IS31FL3733_I2C_ADDRESS_1, 0);
+#if defined(IS31FL3733_I2C_ADDRESS_2)
+    is31fl3733_update_led_control_registers(IS31FL3733_I2C_ADDRESS_2, 1);
+#    if defined(IS31FL3733_I2C_ADDRESS_3)
+    is31fl3733_update_led_control_registers(IS31FL3733_I2C_ADDRESS_3, 2);
+#        if defined(IS31FL3733_I2C_ADDRESS_4)
+    is31fl3733_update_led_control_registers(IS31FL3733_I2C_ADDRESS_4, 3);
+#        endif
+#    endif
+#endif
+}
+
 void is31fl3733_init(uint8_t addr, uint8_t sync) {
    // In order to avoid the LEDs being driven with garbage data
    // in the LED driver's PWM registers, shutdown is enabled last.
@ -146,48 +163,48 @@ void is31fl3733_init(uint8_t addr, uint8_t sync) {
    // Sync is passed so set it according to the datasheet.

    // Unlock the command register.
-    is31fl3733_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);

    // Select PG0
-    is31fl3733_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL);
+    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_LED_CONTROL);
    // Turn off all LEDs.
-    for (int i = 0x00; i <= 0x17; i++) {
+    for (int i = 0; i < IS31FL3733_LED_CONTROL_REGISTER_COUNT; i++) {
        is31fl3733_write_register(addr, i, 0x00);
    }

    // Unlock the command register.
-    is31fl3733_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);

    // Select PG1
-    is31fl3733_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM);
+    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_PWM);
    // Set PWM on all LEDs to 0
    // No need to setup Breath registers to PWM as that is the default.
-    for (int i = 0x00; i <= 0xBF; i++) {
+    for (int i = 0; i < IS31FL3733_PWM_REGISTER_COUNT; i++) {
        is31fl3733_write_register(addr, i, 0x00);
    }

    // Unlock the command register.
-    is31fl3733_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);

    // Select PG3
-    is31fl3733_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_FUNCTION);
+    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_FUNCTION);
    // Set de-ghost pull-up resistors (SWx)
-    is31fl3733_write_register(addr, ISSI_REG_SWPULLUP, ISSI_SWPULLUP);
+    is31fl3733_write_register(addr, IS31FL3733_FUNCTION_REG_SW_PULLUP, IS31FL3733_SW_PULLUP);
    // Set de-ghost pull-down resistors (CSx)
-    is31fl3733_write_register(addr, ISSI_REG_CSPULLUP, ISSI_CSPULLUP);
+    is31fl3733_write_register(addr, IS31FL3733_FUNCTION_REG_CS_PULLDOWN, IS31FL3733_CS_PULLDOWN);
    // Set global current to maximum.
-    is31fl3733_write_register(addr, ISSI_REG_GLOBALCURRENT, ISSI_GLOBALCURRENT);
+    is31fl3733_write_register(addr, IS31FL3733_FUNCTION_REG_GLOBAL_CURRENT, IS31FL3733_GLOBAL_CURRENT);
    // Disable software shutdown.
-    is31fl3733_write_register(addr, ISSI_REG_CONFIGURATION, ((sync & 0b11) << 6) | ((ISSI_PWM_FREQUENCY & 0b111) << 3) | 0x01);
+    is31fl3733_write_register(addr, IS31FL3733_FUNCTION_REG_CONFIGURATION, ((sync & 0b11) << 6) | ((IS31FL3733_PWM_FREQUENCY & 0b111) << 3) | 0x01);

    // Wait 10ms to ensure the device has woken up.
    wait_ms(10);
 }

 void is31fl3733_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
-    is31_led led;
-    if (index >= 0 && index < RGB_MATRIX_LED_COUNT) {
-        memcpy_P(&led, (&g_is31_leds[index]), sizeof(led));
+    is31fl3733_led_t led;
+    if (index >= 0 && index < IS31FL3733_LED_COUNT) {
+        memcpy_P(&led, (&g_is31fl3733_leds[index]), sizeof(led));

        if (g_pwm_buffer[led.driver][led.r] == red && g_pwm_buffer[led.driver][led.g] == green && g_pwm_buffer[led.driver][led.b] == blue) {
            return;
@ -200,14 +217,14 @@ void is31fl3733_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
 }

 void is31fl3733_set_color_all(uint8_t red, uint8_t green, uint8_t blue) {
-    for (int i = 0; i < RGB_MATRIX_LED_COUNT; i++) {
+    for (int i = 0; i < IS31FL3733_LED_COUNT; i++) {
        is31fl3733_set_color(i, red, green, blue);
    }
 }

 void is31fl3733_set_led_control_register(uint8_t index, bool red, bool green, bool blue) {
-    is31_led led;
-    memcpy_P(&led, (&g_is31_leds[index]), sizeof(led));
+    is31fl3733_led_t led;
+    memcpy_P(&led, (&g_is31fl3733_leds[index]), sizeof(led));

    uint8_t control_register_r = led.r / 8;
    uint8_t control_register_g = led.g / 8;
@ -238,26 +255,39 @@ void is31fl3733_set_led_control_register(uint8_t index, bool red, bool green, bo
 void is31fl3733_update_pwm_buffers(uint8_t addr, uint8_t index) {
    if (g_pwm_buffer_update_required[index]) {
        // Firstly we need to unlock the command register and select PG1.
-        is31fl3733_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
-        is31fl3733_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM);
+        is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
+        is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_PWM);

        // If any of the transactions fail we risk writing dirty PG0,
        // refresh page 0 just in case.
        if (!is31fl3733_write_pwm_buffer(addr, g_pwm_buffer[index])) {
            g_led_control_registers_update_required[index] = true;
        }
+        g_pwm_buffer_update_required[index] = false;
    }
-    g_pwm_buffer_update_required[index] = false;
 }

 void is31fl3733_update_led_control_registers(uint8_t addr, uint8_t index) {
    if (g_led_control_registers_update_required[index]) {
        // Firstly we need to unlock the command register and select PG0
-        is31fl3733_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
-        is31fl3733_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL);
-        for (int i = 0; i < 24; i++) {
+        is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
+        is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_LED_CONTROL);
+        for (int i = 0; i < IS31FL3733_LED_CONTROL_REGISTER_COUNT; i++) {
            is31fl3733_write_register(addr, i, g_led_control_registers[index][i]);
        }
+        g_led_control_registers_update_required[index] = false;
    }
-    g_led_control_registers_update_required[index] = false;
+}
+
+void is31fl3733_flush(void) {
+    is31fl3733_update_pwm_buffers(IS31FL3733_I2C_ADDRESS_1, 0);
+#if defined(IS31FL3733_I2C_ADDRESS_2)
+    is31fl3733_update_pwm_buffers(IS31FL3733_I2C_ADDRESS_2, 1);
+#    if defined(IS31FL3733_I2C_ADDRESS_3)
+    is31fl3733_update_pwm_buffers(IS31FL3733_I2C_ADDRESS_3, 2);
+#        if defined(IS31FL3733_I2C_ADDRESS_4)
+    is31fl3733_update_pwm_buffers(IS31FL3733_I2C_ADDRESS_4, 3);
+#        endif
+#    endif
+#endif
 }
--- a/drivers/led/issi/is31fl3733.h
+++ b/drivers/led/issi/is31fl3733.h
@ -22,16 +22,124 @@
 #include <stdint.h>
 #include <stdbool.h>
 #include "progmem.h"
+#include "util.h"

-typedef struct is31_led {
+// ======== DEPRECATED DEFINES - DO NOT USE ========
+#ifdef DRIVER_ADDR_1
+#    define IS31FL3733_I2C_ADDRESS_1 DRIVER_ADDR_1
+#endif
+#ifdef DRIVER_ADDR_2
+#    define IS31FL3733_I2C_ADDRESS_2 DRIVER_ADDR_2
+#endif
+#ifdef DRIVER_ADDR_3
+#    define IS31FL3733_I2C_ADDRESS_3 DRIVER_ADDR_3
+#endif
+#ifdef DRIVER_ADDR_4
+#    define IS31FL3733_I2C_ADDRESS_4 DRIVER_ADDR_4
+#endif
+#ifdef DRIVER_SYNC_1
+#    define IS31FL3733_SYNC_1 DRIVER_SYNC_1
+#endif
+#ifdef DRIVER_ADDR_2
+#    define IS31FL3733_SYNC_2 DRIVER_SYNC_2
+#endif
+#ifdef DRIVER_ADDR_3
+#    define IS31FL3733_SYNC_3 DRIVER_SYNC_3
+#endif
+#ifdef DRIVER_ADDR_4
+#    define IS31FL3733_SYNC_4 DRIVER_SYNC_4
+#endif
+#ifdef ISSI_TIMEOUT
+#    define IS31FL3733_I2C_TIMEOUT ISSI_TIMEOUT
+#endif
+#ifdef ISSI_PERSISTENCE
+#    define IS31FL3733_I2C_PERSISTENCE ISSI_PERSISTENCE
+#endif
+#ifdef ISSI_PWM_FREQUENCY
+#    define IS31FL3733_PWM_FREQUENCY ISSI_PWM_FREQUENCY
+#endif
+#ifdef ISSI_SWPULLUP
+#    define IS31FL3733_SW_PULLUP ISSI_SWPULLUP
+#endif
+#ifdef ISSI_CSPULLUP
+#    define IS31FL3733_CS_PULLDOWN ISSI_CSPULLUP
+#endif
+#ifdef ISSI_GLOBALCURRENT
+#    define IS31FL3733_GLOBAL_CURRENT ISSI_GLOBALCURRENT
+#endif
+
+#define is31_led is31fl3733_led_t
+#define g_is31_leds g_is31fl3733_leds
+
+#define PUR_0R IS31FL3733_PUR_0_OHM
+#define PUR_05KR IS31FL3733_PUR_1K_OHM
+#define PUR_3KR IS31FL3733_PUR_2K_OHM
+#define PUR_4KR IS31FL3733_PUR_4K_OHM
+#define PUR_8KR IS31FL3733_PUR_8K_OHM
+#define PUR_16KR IS31FL3733_PUR_16K_OHM
+#define PUR_32KR IS31FL3733_PUR_32K_OHM
+// ========
+
+#define IS31FL3733_REG_INTERRUPT_MASK 0xF0
+#define IS31FL3733_REG_INTERRUPT_STATUS 0xF1
+
+#define IS31FL3733_REG_COMMAND 0xFD
+
+#define IS31FL3733_COMMAND_LED_CONTROL 0x00
+#define IS31FL3733_COMMAND_PWM 0x01
+#define IS31FL3733_COMMAND_AUTO_BREATH 0x02
+#define IS31FL3733_COMMAND_FUNCTION 0x03
+
+#define IS31FL3733_FUNCTION_REG_CONFIGURATION 0x00
+#define IS31FL3733_FUNCTION_REG_GLOBAL_CURRENT 0x01
+#define IS31FL3733_FUNCTION_REG_SW_PULLUP 0x0F
+#define IS31FL3733_FUNCTION_REG_CS_PULLDOWN 0x10
+#define IS31FL3733_FUNCTION_REG_RESET 0x11
+
+#define IS31FL3733_REG_COMMAND_WRITE_LOCK 0xFE
+#define IS31FL3733_COMMAND_WRITE_LOCK_MAGIC 0xC5
+
+#define IS31FL3733_I2C_ADDRESS_GND_GND 0x50
+#define IS31FL3733_I2C_ADDRESS_GND_SCL 0x51
+#define IS31FL3733_I2C_ADDRESS_GND_SDA 0x52
+#define IS31FL3733_I2C_ADDRESS_GND_VCC 0x53
+#define IS31FL3733_I2C_ADDRESS_SCL_GND 0x54
+#define IS31FL3733_I2C_ADDRESS_SCL_SCL 0x55
+#define IS31FL3733_I2C_ADDRESS_SCL_SDA 0x56
+#define IS31FL3733_I2C_ADDRESS_SCL_VCC 0x57
+#define IS31FL3733_I2C_ADDRESS_SDA_GND 0x58
+#define IS31FL3733_I2C_ADDRESS_SDA_SCL 0x59
+#define IS31FL3733_I2C_ADDRESS_SDA_SDA 0x5A
+#define IS31FL3733_I2C_ADDRESS_SDA_VCC 0x5B
+#define IS31FL3733_I2C_ADDRESS_VCC_GND 0x5C
+#define IS31FL3733_I2C_ADDRESS_VCC_SCL 0x5D
+#define IS31FL3733_I2C_ADDRESS_VCC_SDA 0x5E
+#define IS31FL3733_I2C_ADDRESS_VCC_VCC 0x5F
+
+#if defined(RGB_MATRIX_IS31FL3733)
+#    define IS31FL3733_LED_COUNT RGB_MATRIX_LED_COUNT
+#endif
+
+#if defined(IS31FL3733_I2C_ADDRESS_4)
+#    define IS31FL3733_DRIVER_COUNT 4
+#elif defined(IS31FL3733_I2C_ADDRESS_3)
+#    define IS31FL3733_DRIVER_COUNT 3
+#elif defined(IS31FL3733_I2C_ADDRESS_2)
+#    define IS31FL3733_DRIVER_COUNT 2
+#elif defined(IS31FL3733_I2C_ADDRESS_1)
+#    define IS31FL3733_DRIVER_COUNT 1
+#endif
+
+typedef struct is31fl3733_led_t {
    uint8_t driver : 2;
    uint8_t r;
    uint8_t g;
    uint8_t b;
-} __attribute__((packed)) is31_led;
+} PACKED is31fl3733_led_t;

-extern const is31_led PROGMEM g_is31_leds[RGB_MATRIX_LED_COUNT];
+extern const is31fl3733_led_t PROGMEM g_is31fl3733_leds[IS31FL3733_LED_COUNT];

+void is31fl3733_init_drivers(void);
 void is31fl3733_init(uint8_t addr, uint8_t sync);
 bool is31fl3733_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 bool is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
@ -48,13 +156,35 @@ void is31fl3733_set_led_control_register(uint8_t index, bool red, bool green, bo
 void is31fl3733_update_pwm_buffers(uint8_t addr, uint8_t index);
 void is31fl3733_update_led_control_registers(uint8_t addr, uint8_t index);

-#define PUR_0R 0x00   // No PUR resistor
-#define PUR_05KR 0x02 // 0.5k Ohm resistor in t_NOL
-#define PUR_3KR 0x03  // 3.0k Ohm resistor on all the time
-#define PUR_4KR 0x04  // 4.0k Ohm resistor on all the time
-#define PUR_8KR 0x05  // 8.0k Ohm resistor on all the time
-#define PUR_16KR 0x06 // 16k Ohm resistor on all the time
-#define PUR_32KR 0x07 // 32k Ohm resistor in t_NOL
+void is31fl3733_flush(void);
+
+#define IS31FL3733_PDR_0_OHM 0b000   // No pull-down resistor
+#define IS31FL3733_PDR_0K5_OHM 0b001 // 0.5 kOhm resistor
+#define IS31FL3733_PDR_1K_OHM 0b010  // 1 kOhm resistor
+#define IS31FL3733_PDR_2K_OHM 0b011  // 2 kOhm resistor
+#define IS31FL3733_PDR_4K_OHM 0b100  // 4 kOhm resistor
+#define IS31FL3733_PDR_8K_OHM 0b101  // 8 kOhm resistor
+#define IS31FL3733_PDR_16K_OHM 0b110 // 16 kOhm resistor
+#define IS31FL3733_PDR_32K_OHM 0b111 // 32 kOhm resistor
+
+#define IS31FL3733_PUR_0_OHM 0b000   // No pull-up resistor
+#define IS31FL3733_PUR_0K5_OHM 0b001 // 0.5 kOhm resistor
+#define IS31FL3733_PUR_1K_OHM 0b010  // 1 kOhm resistor
+#define IS31FL3733_PUR_2K_OHM 0b011  // 2 kOhm resistor
+#define IS31FL3733_PUR_4K_OHM 0b100  // 4 kOhm resistor
+#define IS31FL3733_PUR_8K_OHM 0b101  // 8 kOhm resistor
+#define IS31FL3733_PUR_16K_OHM 0b110 // 16 kOhm resistor
+#define IS31FL3733_PUR_32K_OHM 0b111 // 32 kOhm resistor
+
+#define IS31FL3733_PWM_FREQUENCY_8K4_HZ 0b000
+#define IS31FL3733_PWM_FREQUENCY_4K2_HZ 0b001
+#define IS31FL3733_PWM_FREQUENCY_26K7_HZ 0b010
+#define IS31FL3733_PWM_FREQUENCY_2K1_HZ 0b011
+#define IS31FL3733_PWM_FREQUENCY_1K05_HZ 0b100
+
+#define IS31FL3733_SYNC_NONE 0b00
+#define IS31FL3733_SYNC_MASTER 0b01
+#define IS31FL3733_SYNC_SLAVE 0b10

 #define A_1 0x00
 #define A_2 0x01
--- a/Show More
+++ b/Show More