diff --git a/drivers/led/issi/is31fl3218-mono.c b/drivers/led/issi/is31fl3218-mono.c
index d15745f6378..de2c44b29b4 100644
--- a/drivers/led/issi/is31fl3218-mono.c
+++ b/drivers/led/issi/is31fl3218-mono.c
@@ -45,13 +45,13 @@ void is31fl3218_write_register(uint8_t reg, uint8_t data) {
 #endif
 }
 
-void is31fl3218_write_pwm_buffer(uint8_t *pwm_buffer) {
+void is31fl3218_write_pwm_buffer(void) {
 #if IS31FL3218_I2C_PERSISTENCE > 0
     for (uint8_t i = 0; i < IS31FL3218_I2C_PERSISTENCE; i++) {
-        if (i2c_writeReg(IS31FL3218_I2C_ADDRESS << 1, IS31FL3218_REG_PWM, pwm_buffer, 18, IS31FL3218_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+        if (i2c_writeReg(IS31FL3218_I2C_ADDRESS << 1, IS31FL3218_REG_PWM, g_pwm_buffer, 18, IS31FL3218_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
     }
 #else
-    i2c_writeReg(IS31FL3218_I2C_ADDRESS << 1, IS31FL3218_REG_PWM, pwm_buffer, 18, IS31FL3218_I2C_TIMEOUT);
+    i2c_writeReg(IS31FL3218_I2C_ADDRESS << 1, IS31FL3218_REG_PWM, g_pwm_buffer, 18, IS31FL3218_I2C_TIMEOUT);
 #endif
 }
 
@@ -123,7 +123,7 @@ void is31fl3218_set_led_control_register(uint8_t index, bool value) {
 
 void is31fl3218_update_pwm_buffers(void) {
     if (g_pwm_buffer_update_required) {
-        is31fl3218_write_pwm_buffer(g_pwm_buffer);
+        is31fl3218_write_pwm_buffer();
         // Load PWM registers and LED Control register data
         is31fl3218_write_register(IS31FL3218_REG_UPDATE, 0x01);
 
diff --git a/drivers/led/issi/is31fl3218.c b/drivers/led/issi/is31fl3218.c
index a6fbda1b278..2f6668b301a 100644
--- a/drivers/led/issi/is31fl3218.c
+++ b/drivers/led/issi/is31fl3218.c
@@ -45,13 +45,13 @@ void is31fl3218_write_register(uint8_t reg, uint8_t data) {
 #endif
 }
 
-void is31fl3218_write_pwm_buffer(uint8_t *pwm_buffer) {
+void is31fl3218_write_pwm_buffer(void) {
 #if IS31FL3218_I2C_PERSISTENCE > 0
     for (uint8_t i = 0; i < IS31FL3218_I2C_PERSISTENCE; i++) {
-        if (i2c_writeReg(IS31FL3218_I2C_ADDRESS << 1, IS31FL3218_REG_PWM, pwm_buffer, 18, IS31FL3218_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+        if (i2c_writeReg(IS31FL3218_I2C_ADDRESS << 1, IS31FL3218_REG_PWM, g_pwm_buffer, 18, IS31FL3218_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
     }
 #else
-    i2c_writeReg(IS31FL3218_I2C_ADDRESS << 1, IS31FL3218_REG_PWM, pwm_buffer, 18, IS31FL3218_I2C_TIMEOUT);
+    i2c_writeReg(IS31FL3218_I2C_ADDRESS << 1, IS31FL3218_REG_PWM, g_pwm_buffer, 18, IS31FL3218_I2C_TIMEOUT);
 #endif
 }
 
@@ -139,7 +139,7 @@ void is31fl3218_set_led_control_register(uint8_t index, bool red, bool green, bo
 
 void is31fl3218_update_pwm_buffers(void) {
     if (g_pwm_buffer_update_required) {
-        is31fl3218_write_pwm_buffer(g_pwm_buffer);
+        is31fl3218_write_pwm_buffer();
         // Load PWM registers and LED Control register data
         is31fl3218_write_register(IS31FL3218_REG_UPDATE, 0x01);
 
diff --git a/drivers/led/issi/is31fl3731-mono.c b/drivers/led/issi/is31fl3731-mono.c
index 4533f2e7eac..908922fb709 100644
--- a/drivers/led/issi/is31fl3731-mono.c
+++ b/drivers/led/issi/is31fl3731-mono.c
@@ -57,7 +57,7 @@ void is31fl3731_select_page(uint8_t addr, uint8_t page) {
     is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, page);
 }
 
-void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes page 0 is already selected.
     // Transmit PWM registers in 9 transfers of 16 bytes.
 
@@ -65,10 +65,10 @@ void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < IS31FL3731_PWM_REGISTER_COUNT; i += 16) {
 #if IS31FL3731_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3731_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, IS31FL3731_FRAME_REG_PWM + i, pwm_buffer + i, 16, IS31FL3731_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, IS31FL3731_FRAME_REG_PWM + i, g_pwm_buffer[index] + i, 16, IS31FL3731_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, IS31FL3731_FRAME_REG_PWM + i, pwm_buffer + i, 16, IS31FL3731_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, IS31FL3731_FRAME_REG_PWM + i, g_pwm_buffer[index] + i, 16, IS31FL3731_I2C_TIMEOUT);
 #endif
     }
 }
@@ -194,7 +194,7 @@ void is31fl3731_set_led_control_register(uint8_t index, bool value) {
 
 void is31fl3731_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
-        is31fl3731_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3731_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3731-mono.h b/drivers/led/issi/is31fl3731-mono.h
index ba7f52fde0c..1b205e01150 100644
--- a/drivers/led/issi/is31fl3731-mono.h
+++ b/drivers/led/issi/is31fl3731-mono.h
@@ -108,7 +108,6 @@ 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_select_page(uint8_t addr, uint8_t page);
-void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3731_set_value(int index, uint8_t value);
 void is31fl3731_set_value_all(uint8_t value);
diff --git a/drivers/led/issi/is31fl3731.c b/drivers/led/issi/is31fl3731.c
index 5c96ce804c9..b188d128d91 100644
--- a/drivers/led/issi/is31fl3731.c
+++ b/drivers/led/issi/is31fl3731.c
@@ -56,7 +56,7 @@ void is31fl3731_select_page(uint8_t addr, uint8_t page) {
     is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, page);
 }
 
-void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes page 0 is already selected.
     // Transmit PWM registers in 9 transfers of 16 bytes.
 
@@ -64,10 +64,10 @@ void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < IS31FL3731_PWM_REGISTER_COUNT; i += 16) {
 #if IS31FL3731_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3731_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, IS31FL3731_FRAME_REG_PWM + i, pwm_buffer + i, 16, IS31FL3731_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, IS31FL3731_FRAME_REG_PWM + i, g_pwm_buffer[index] + i, 16, IS31FL3731_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, IS31FL3731_FRAME_REG_PWM + i, pwm_buffer + i, 16, IS31FL3731_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, IS31FL3731_FRAME_REG_PWM + i, g_pwm_buffer[index] + i, 16, IS31FL3731_I2C_TIMEOUT);
 #endif
     }
 }
@@ -209,7 +209,7 @@ 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) {
     if (g_pwm_buffer_update_required[index]) {
-        is31fl3731_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3731_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3731.h b/drivers/led/issi/is31fl3731.h
index b144aa48ed8..71cf38db4dc 100644
--- a/drivers/led/issi/is31fl3731.h
+++ b/drivers/led/issi/is31fl3731.h
@@ -109,7 +109,6 @@ 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_select_page(uint8_t addr, uint8_t page);
-void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 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);
diff --git a/drivers/led/issi/is31fl3733-mono.c b/drivers/led/issi/is31fl3733-mono.c
index 008feb50f48..de20c169fea 100644
--- a/drivers/led/issi/is31fl3733-mono.c
+++ b/drivers/led/issi/is31fl3733-mono.c
@@ -89,7 +89,7 @@ void is31fl3733_select_page(uint8_t addr, uint8_t page) {
     is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, page);
 }
 
-void is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes page 1 is already selected.
     // Transmit PWM registers in 12 transfers of 16 bytes.
 
@@ -97,10 +97,10 @@ void is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < IS31FL3733_PWM_REGISTER_COUNT; i += 16) {
 #if IS31FL3733_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3733_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i, pwm_buffer + i, 16, IS31FL3733_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3733_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i, pwm_buffer + i, 16, IS31FL3733_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3733_I2C_TIMEOUT);
 #endif
     }
 }
@@ -213,7 +213,7 @@ void is31fl3733_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         is31fl3733_select_page(addr, IS31FL3733_COMMAND_PWM);
 
-        is31fl3733_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3733_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3733-mono.h b/drivers/led/issi/is31fl3733-mono.h
index 2fae1f1afe1..591fca907a9 100644
--- a/drivers/led/issi/is31fl3733-mono.h
+++ b/drivers/led/issi/is31fl3733-mono.h
@@ -118,7 +118,6 @@ void is31fl3733_init_drivers(void);
 void is31fl3733_init(uint8_t addr, uint8_t sync);
 void is31fl3733_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3733_select_page(uint8_t addr, uint8_t page);
-void is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3733_set_value(int index, uint8_t value);
 void is31fl3733_set_value_all(uint8_t value);
diff --git a/drivers/led/issi/is31fl3733.c b/drivers/led/issi/is31fl3733.c
index cc4dd53d6f5..de2dbd74d58 100644
--- a/drivers/led/issi/is31fl3733.c
+++ b/drivers/led/issi/is31fl3733.c
@@ -88,7 +88,7 @@ void is31fl3733_select_page(uint8_t addr, uint8_t page) {
     is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, page);
 }
 
-void is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes page 1 is already selected.
     // Transmit PWM registers in 12 transfers of 16 bytes.
 
@@ -96,10 +96,10 @@ void is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < IS31FL3733_PWM_REGISTER_COUNT; i += 16) {
 #if IS31FL3733_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3733_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i, pwm_buffer + i, 16, IS31FL3733_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3733_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i, pwm_buffer + i, 16, IS31FL3733_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3733_I2C_TIMEOUT);
 #endif
     }
 }
@@ -228,7 +228,7 @@ void is31fl3733_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         is31fl3733_select_page(addr, IS31FL3733_COMMAND_PWM);
 
-        is31fl3733_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3733_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3733.h b/drivers/led/issi/is31fl3733.h
index a1b44b57518..532d35ed577 100644
--- a/drivers/led/issi/is31fl3733.h
+++ b/drivers/led/issi/is31fl3733.h
@@ -143,7 +143,6 @@ void is31fl3733_init_drivers(void);
 void is31fl3733_init(uint8_t addr, uint8_t sync);
 void is31fl3733_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3733_select_page(uint8_t addr, uint8_t page);
-void is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 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);
diff --git a/drivers/led/issi/is31fl3736-mono.c b/drivers/led/issi/is31fl3736-mono.c
index e4afa75ac61..1cbc6edcff8 100644
--- a/drivers/led/issi/is31fl3736-mono.c
+++ b/drivers/led/issi/is31fl3736-mono.c
@@ -73,7 +73,7 @@ void is31fl3736_select_page(uint8_t addr, uint8_t page) {
     is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, page);
 }
 
-void is31fl3736_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3736_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes page 1 is already selected.
     // Transmit PWM registers in 12 transfers of 16 bytes.
 
@@ -81,10 +81,10 @@ void is31fl3736_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < IS31FL3736_PWM_REGISTER_COUNT; i += 16) {
 #if IS31FL3736_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3736_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i, pwm_buffer + i, 16, IS31FL3736_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3736_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i, pwm_buffer + i, 16, IS31FL3736_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3736_I2C_TIMEOUT);
 #endif
     }
 }
@@ -202,7 +202,7 @@ void is31fl3736_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         is31fl3736_select_page(addr, IS31FL3736_COMMAND_PWM);
 
-        is31fl3736_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3736_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3736-mono.h b/drivers/led/issi/is31fl3736-mono.h
index 5e80eb646ab..43d1548c028 100644
--- a/drivers/led/issi/is31fl3736-mono.h
+++ b/drivers/led/issi/is31fl3736-mono.h
@@ -113,7 +113,6 @@ void is31fl3736_init_drivers(void);
 void is31fl3736_init(uint8_t addr);
 void is31fl3736_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3736_select_page(uint8_t addr, uint8_t page);
-void is31fl3736_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3736_set_value(int index, uint8_t value);
 void is31fl3736_set_value_all(uint8_t value);
diff --git a/drivers/led/issi/is31fl3736.c b/drivers/led/issi/is31fl3736.c
index 6d16efbbe14..979d1add85d 100644
--- a/drivers/led/issi/is31fl3736.c
+++ b/drivers/led/issi/is31fl3736.c
@@ -73,7 +73,7 @@ void is31fl3736_select_page(uint8_t addr, uint8_t page) {
     is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, page);
 }
 
-void is31fl3736_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3736_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes page 1 is already selected.
     // Transmit PWM registers in 12 transfers of 16 bytes.
 
@@ -81,10 +81,10 @@ void is31fl3736_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < IS31FL3736_PWM_REGISTER_COUNT; i += 16) {
 #if IS31FL3736_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3736_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i, pwm_buffer + i, 16, IS31FL3736_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3736_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i, pwm_buffer + i, 16, IS31FL3736_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3736_I2C_TIMEOUT);
 #endif
     }
 }
@@ -219,7 +219,7 @@ void is31fl3736_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         is31fl3736_select_page(addr, IS31FL3736_COMMAND_PWM);
 
-        is31fl3736_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3736_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3736.h b/drivers/led/issi/is31fl3736.h
index 5f0b11e46ad..086edc0e4a0 100644
--- a/drivers/led/issi/is31fl3736.h
+++ b/drivers/led/issi/is31fl3736.h
@@ -127,7 +127,6 @@ void is31fl3736_init_drivers(void);
 void is31fl3736_init(uint8_t addr);
 void is31fl3736_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3736_select_page(uint8_t addr, uint8_t page);
-void is31fl3736_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3736_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);
 void is31fl3736_set_color_all(uint8_t red, uint8_t green, uint8_t blue);
diff --git a/drivers/led/issi/is31fl3737-mono.c b/drivers/led/issi/is31fl3737-mono.c
index 9cc4d11d743..067d98d5eed 100644
--- a/drivers/led/issi/is31fl3737-mono.c
+++ b/drivers/led/issi/is31fl3737-mono.c
@@ -76,7 +76,7 @@ void is31fl3737_select_page(uint8_t addr, uint8_t page) {
     is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND, page);
 }
 
-void is31fl3737_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3737_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes page 1 is already selected.
     // Transmit PWM registers in 12 transfers of 16 bytes.
 
@@ -84,10 +84,10 @@ void is31fl3737_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < IS31FL3737_PWM_REGISTER_COUNT; i += 16) {
 #if IS31FL3737_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3737_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i, pwm_buffer + i, 16, IS31FL3737_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3737_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i, pwm_buffer + i, 16, IS31FL3737_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3737_I2C_TIMEOUT);
 #endif
     }
 }
@@ -199,7 +199,7 @@ void is31fl3737_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         is31fl3737_select_page(addr, IS31FL3737_COMMAND_PWM);
 
-        is31fl3737_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3737_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3737-mono.h b/drivers/led/issi/is31fl3737-mono.h
index a11d2ef4234..6d081bfa00d 100644
--- a/drivers/led/issi/is31fl3737-mono.h
+++ b/drivers/led/issi/is31fl3737-mono.h
@@ -103,7 +103,6 @@ void is31fl3737_init_drivers(void);
 void is31fl3737_init(uint8_t addr);
 void is31fl3737_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3737_select_page(uint8_t addr, uint8_t page);
-void is31fl3737_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3737_set_value(int index, uint8_t value);
 void is31fl3737_set_value_all(uint8_t value);
diff --git a/drivers/led/issi/is31fl3737.c b/drivers/led/issi/is31fl3737.c
index 318695d2987..2df189bcea2 100644
--- a/drivers/led/issi/is31fl3737.c
+++ b/drivers/led/issi/is31fl3737.c
@@ -76,7 +76,7 @@ void is31fl3737_select_page(uint8_t addr, uint8_t page) {
     is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND, page);
 }
 
-void is31fl3737_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3737_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes page 1 is already selected.
     // Transmit PWM registers in 12 transfers of 16 bytes.
 
@@ -84,10 +84,10 @@ void is31fl3737_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < IS31FL3737_PWM_REGISTER_COUNT; i += 16) {
 #if IS31FL3737_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3737_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i, pwm_buffer + i, 16, IS31FL3737_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3737_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i, pwm_buffer + i, 16, IS31FL3737_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3737_I2C_TIMEOUT);
 #endif
     }
 }
@@ -215,7 +215,7 @@ void is31fl3737_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         is31fl3737_select_page(addr, IS31FL3737_COMMAND_PWM);
 
-        is31fl3737_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3737_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3737.h b/drivers/led/issi/is31fl3737.h
index a707808b51f..7f0d86df823 100644
--- a/drivers/led/issi/is31fl3737.h
+++ b/drivers/led/issi/is31fl3737.h
@@ -120,7 +120,6 @@ void is31fl3737_init_drivers(void);
 void is31fl3737_init(uint8_t addr);
 void is31fl3737_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3737_select_page(uint8_t addr, uint8_t page);
-void is31fl3737_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3737_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);
 void is31fl3737_set_color_all(uint8_t red, uint8_t green, uint8_t blue);
diff --git a/drivers/led/issi/is31fl3741-mono.c b/drivers/led/issi/is31fl3741-mono.c
index 093a7d1133b..37ce58ed3f4 100644
--- a/drivers/led/issi/is31fl3741-mono.c
+++ b/drivers/led/issi/is31fl3741-mono.c
@@ -79,7 +79,7 @@ void is31fl3741_select_page(uint8_t addr, uint8_t page) {
     is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, page);
 }
 
-void is31fl3741_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3741_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assume page 0 is already selected
 
     for (uint16_t i = 0; i < 342; i += 18) {
@@ -89,20 +89,20 @@ void is31fl3741_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
 
 #if IS31FL3741_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3741_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i % 180, pwm_buffer + i, 18, IS31FL3741_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i % 180, g_pwm_buffer[index] + i, 18, IS31FL3741_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i % 180, pwm_buffer + i, 18, IS31FL3741_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i % 180, g_pwm_buffer[index] + i, 18, IS31FL3741_I2C_TIMEOUT);
 #endif
     }
 
     // transfer the left cause the total number is 351
 #if IS31FL3741_I2C_PERSISTENCE > 0
     for (uint8_t i = 0; i < IS31FL3741_I2C_PERSISTENCE; i++) {
-        if (i2c_writeReg(addr << 1, 162, pwm_buffer + 342, 9, IS31FL3741_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+        if (i2c_writeReg(addr << 1, 162, g_pwm_buffer[index] + 342, 9, IS31FL3741_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
     }
 #else
-    i2c_writeReg(addr << 1, 162, pwm_buffer + 342, 9, IS31FL3741_I2C_TIMEOUT);
+    i2c_writeReg(addr << 1, 162, g_pwm_buffer[index] + 342, 9, IS31FL3741_I2C_TIMEOUT);
 #endif
 }
 
@@ -199,7 +199,7 @@ void is31fl3741_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         is31fl3741_select_page(addr, IS31FL3741_COMMAND_PWM_0);
 
-        is31fl3741_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3741_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3741-mono.h b/drivers/led/issi/is31fl3741-mono.h
index 06c7da5afd8..d2ba1b7d174 100644
--- a/drivers/led/issi/is31fl3741-mono.h
+++ b/drivers/led/issi/is31fl3741-mono.h
@@ -105,7 +105,6 @@ void is31fl3741_init_drivers(void);
 void is31fl3741_init(uint8_t addr);
 void is31fl3741_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3741_select_page(uint8_t addr, uint8_t page);
-void is31fl3741_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3741_set_value(int index, uint8_t value);
 void is31fl3741_set_value_all(uint8_t value);
diff --git a/drivers/led/issi/is31fl3741.c b/drivers/led/issi/is31fl3741.c
index b5d041af4fa..6eca5009c28 100644
--- a/drivers/led/issi/is31fl3741.c
+++ b/drivers/led/issi/is31fl3741.c
@@ -79,7 +79,7 @@ void is31fl3741_select_page(uint8_t addr, uint8_t page) {
     is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, page);
 }
 
-void is31fl3741_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3741_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assume page 0 is already selected
 
     for (uint16_t i = 0; i < 342; i += 18) {
@@ -89,20 +89,20 @@ void is31fl3741_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
 
 #if IS31FL3741_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3741_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i % 180, pwm_buffer + i, 18, IS31FL3741_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i % 180, g_pwm_buffer[index] + i, 18, IS31FL3741_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i % 180, pwm_buffer + i, 18, IS31FL3741_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i % 180, g_pwm_buffer[index] + i, 18, IS31FL3741_I2C_TIMEOUT);
 #endif
     }
 
     // transfer the left cause the total number is 351
 #if IS31FL3741_I2C_PERSISTENCE > 0
     for (uint8_t i = 0; i < IS31FL3741_I2C_PERSISTENCE; i++) {
-        if (i2c_writeReg(addr << 1, 162, pwm_buffer + 342, 9, IS31FL3741_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+        if (i2c_writeReg(addr << 1, 162, g_pwm_buffer[index] + 342, 9, IS31FL3741_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
     }
 #else
-    i2c_writeReg(addr << 1, 162, pwm_buffer + 342, 9, IS31FL3741_I2C_TIMEOUT);
+    i2c_writeReg(addr << 1, 162, g_pwm_buffer[index] + 342, 9, IS31FL3741_I2C_TIMEOUT);
 #endif
 }
 
@@ -213,7 +213,7 @@ void is31fl3741_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         is31fl3741_select_page(addr, IS31FL3741_COMMAND_PWM_0);
 
-        is31fl3741_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3741_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3741.h b/drivers/led/issi/is31fl3741.h
index 92127a3c4ec..e7777a88d5f 100644
--- a/drivers/led/issi/is31fl3741.h
+++ b/drivers/led/issi/is31fl3741.h
@@ -122,7 +122,6 @@ void is31fl3741_init_drivers(void);
 void is31fl3741_init(uint8_t addr);
 void is31fl3741_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3741_select_page(uint8_t addr, uint8_t page);
-void is31fl3741_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3741_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);
 void is31fl3741_set_color_all(uint8_t red, uint8_t green, uint8_t blue);
diff --git a/drivers/led/issi/is31fl3742a-mono.c b/drivers/led/issi/is31fl3742a-mono.c
index c9572520b2f..f36605f14a1 100644
--- a/drivers/led/issi/is31fl3742a-mono.c
+++ b/drivers/led/issi/is31fl3742a-mono.c
@@ -74,7 +74,7 @@ void is31fl3742a_select_page(uint8_t addr, uint8_t page) {
     is31fl3742a_write_register(addr, IS31FL3742A_REG_COMMAND, page);
 }
 
-void is31fl3742a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3742a_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes page 0 is already selected.
     // Transmit PWM registers in 6 transfers of 30 bytes.
 
@@ -82,10 +82,10 @@ void is31fl3742a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < IS31FL3742A_PWM_REGISTER_COUNT; i += 30) {
 #if IS31FL3742A_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3742A_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i, pwm_buffer + i, 30, IS31FL3742A_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 30, IS31FL3742A_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i, pwm_buffer + i, 30, IS31FL3742A_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 30, IS31FL3742A_I2C_TIMEOUT);
 #endif
     }
 }
@@ -183,7 +183,7 @@ void is31fl3742a_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         is31fl3742a_select_page(addr, IS31FL3742A_COMMAND_PWM);
 
-        is31fl3742a_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3742a_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3742a-mono.h b/drivers/led/issi/is31fl3742a-mono.h
index 04614e4f6ea..8de284fa7d9 100644
--- a/drivers/led/issi/is31fl3742a-mono.h
+++ b/drivers/led/issi/is31fl3742a-mono.h
@@ -75,7 +75,6 @@ void is31fl3742a_init_drivers(void);
 void is31fl3742a_init(uint8_t addr);
 void is31fl3742a_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3742a_select_page(uint8_t addr, uint8_t page);
-void is31fl3742a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3742a_set_value(int index, uint8_t value);
 void is31fl3742a_set_value_all(uint8_t value);
diff --git a/drivers/led/issi/is31fl3742a.c b/drivers/led/issi/is31fl3742a.c
index b849c714ac0..1ba8ee7b472 100644
--- a/drivers/led/issi/is31fl3742a.c
+++ b/drivers/led/issi/is31fl3742a.c
@@ -74,7 +74,7 @@ void is31fl3742a_select_page(uint8_t addr, uint8_t page) {
     is31fl3742a_write_register(addr, IS31FL3742A_REG_COMMAND, page);
 }
 
-void is31fl3742a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3742a_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes page 0 is already selected.
     // Transmit PWM registers in 6 transfers of 30 bytes.
 
@@ -82,10 +82,10 @@ void is31fl3742a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < IS31FL3742A_PWM_REGISTER_COUNT; i += 30) {
 #if IS31FL3742A_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3742A_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i, pwm_buffer + i, 30, IS31FL3742A_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 30, IS31FL3742A_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i, pwm_buffer + i, 30, IS31FL3742A_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 30, IS31FL3742A_I2C_TIMEOUT);
 #endif
     }
 }
@@ -187,7 +187,7 @@ void is31fl3742a_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         is31fl3742a_select_page(addr, IS31FL3742A_COMMAND_PWM);
 
-        is31fl3742a_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3742a_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3742a.h b/drivers/led/issi/is31fl3742a.h
index 304dd5925b3..5f34a3cdb97 100644
--- a/drivers/led/issi/is31fl3742a.h
+++ b/drivers/led/issi/is31fl3742a.h
@@ -77,7 +77,6 @@ void is31fl3742a_init_drivers(void);
 void is31fl3742a_init(uint8_t addr);
 void is31fl3742a_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3742a_select_page(uint8_t addr, uint8_t page);
-void is31fl3742a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3742a_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);
 void is31fl3742a_set_color_all(uint8_t red, uint8_t green, uint8_t blue);
diff --git a/drivers/led/issi/is31fl3743a-mono.c b/drivers/led/issi/is31fl3743a-mono.c
index 30d26badb5c..b49decf6340 100644
--- a/drivers/led/issi/is31fl3743a-mono.c
+++ b/drivers/led/issi/is31fl3743a-mono.c
@@ -83,7 +83,7 @@ void is31fl3743a_select_page(uint8_t addr, uint8_t page) {
     is31fl3743a_write_register(addr, IS31FL3743A_REG_COMMAND, page);
 }
 
-void is31fl3743a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3743a_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes page 0 is already selected.
     // Transmit PWM registers in 11 transfers of 18 bytes.
 
@@ -91,10 +91,10 @@ void is31fl3743a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < IS31FL3743A_PWM_REGISTER_COUNT; i += 18) {
 #if IS31FL3743A_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3743A_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i + 1, pwm_buffer + i, 18, IS31FL3743A_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i + 1, g_pwm_buffer[index] + i, 18, IS31FL3743A_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i + 1, pwm_buffer + i, 18, IS31FL3743A_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i + 1, g_pwm_buffer[index] + i, 18, IS31FL3743A_I2C_TIMEOUT);
 #endif
     }
 }
@@ -192,7 +192,7 @@ void is31fl3743a_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         is31fl3743a_select_page(addr, IS31FL3743A_COMMAND_PWM);
 
-        is31fl3743a_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3743a_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3743a-mono.h b/drivers/led/issi/is31fl3743a-mono.h
index 544531ec256..8ec3ce07553 100644
--- a/drivers/led/issi/is31fl3743a-mono.h
+++ b/drivers/led/issi/is31fl3743a-mono.h
@@ -85,7 +85,6 @@ void is31fl3743a_init_drivers(void);
 void is31fl3743a_init(uint8_t addr, uint8_t sync);
 void is31fl3743a_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3743a_select_page(uint8_t addr, uint8_t page);
-void is31fl3743a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3743a_set_value(int index, uint8_t value);
 void is31fl3743a_set_value_all(uint8_t value);
diff --git a/drivers/led/issi/is31fl3743a.c b/drivers/led/issi/is31fl3743a.c
index 71a4bd1b32c..df094952a11 100644
--- a/drivers/led/issi/is31fl3743a.c
+++ b/drivers/led/issi/is31fl3743a.c
@@ -83,7 +83,7 @@ void is31fl3743a_select_page(uint8_t addr, uint8_t page) {
     is31fl3743a_write_register(addr, IS31FL3743A_REG_COMMAND, page);
 }
 
-void is31fl3743a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3743a_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes page 0 is already selected.
     // Transmit PWM registers in 11 transfers of 18 bytes.
 
@@ -91,10 +91,10 @@ void is31fl3743a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < IS31FL3743A_PWM_REGISTER_COUNT; i += 18) {
 #if IS31FL3743A_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3743A_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i + 1, pwm_buffer + i, 18, IS31FL3743A_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i + 1, g_pwm_buffer[index] + i, 18, IS31FL3743A_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i + 1, pwm_buffer + i, 18, IS31FL3743A_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i + 1, g_pwm_buffer[index] + i, 18, IS31FL3743A_I2C_TIMEOUT);
 #endif
     }
 }
@@ -196,7 +196,7 @@ void is31fl3743a_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         is31fl3743a_select_page(addr, IS31FL3743A_COMMAND_PWM);
 
-        is31fl3743a_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3743a_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3743a.h b/drivers/led/issi/is31fl3743a.h
index 87bb63e6b44..381b8537164 100644
--- a/drivers/led/issi/is31fl3743a.h
+++ b/drivers/led/issi/is31fl3743a.h
@@ -87,7 +87,6 @@ void is31fl3743a_init_drivers(void);
 void is31fl3743a_init(uint8_t addr, uint8_t sync);
 void is31fl3743a_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3743a_select_page(uint8_t addr, uint8_t page);
-void is31fl3743a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3743a_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);
 void is31fl3743a_set_color_all(uint8_t red, uint8_t green, uint8_t blue);
diff --git a/drivers/led/issi/is31fl3745-mono.c b/drivers/led/issi/is31fl3745-mono.c
index 7ba74d7c185..2c9f5accbab 100644
--- a/drivers/led/issi/is31fl3745-mono.c
+++ b/drivers/led/issi/is31fl3745-mono.c
@@ -83,7 +83,7 @@ void is31fl3745_select_page(uint8_t addr, uint8_t page) {
     is31fl3745_write_register(addr, IS31FL3745_REG_COMMAND, page);
 }
 
-void is31fl3745_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3745_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes page 0 is already selected.
     // Transmit PWM registers in 8 transfers of 18 bytes.
 
@@ -91,10 +91,10 @@ void is31fl3745_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < IS31FL3745_PWM_REGISTER_COUNT; i += 18) {
 #if IS31FL3745_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3745_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i + 1, pwm_buffer + i, 18, IS31FL3745_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i + 1, g_pwm_buffer[index] + i, 18, IS31FL3745_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i + 1, pwm_buffer + i, 18, IS31FL3745_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i + 1, g_pwm_buffer[index] + i, 18, IS31FL3745_I2C_TIMEOUT);
 #endif
     }
 }
@@ -192,7 +192,7 @@ void is31fl3745_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         is31fl3745_select_page(addr, IS31FL3745_COMMAND_PWM);
 
-        is31fl3745_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3745_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3745-mono.h b/drivers/led/issi/is31fl3745-mono.h
index dbff193acdd..f60f0acfd96 100644
--- a/drivers/led/issi/is31fl3745-mono.h
+++ b/drivers/led/issi/is31fl3745-mono.h
@@ -85,7 +85,6 @@ void is31fl3745_init_drivers(void);
 void is31fl3745_init(uint8_t addr, uint8_t sync);
 void is31fl3745_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3745_select_page(uint8_t addr, uint8_t page);
-void is31fl3745_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3745_set_value(int index, uint8_t value);
 void is31fl3745_set_value_all(uint8_t value);
diff --git a/drivers/led/issi/is31fl3745.c b/drivers/led/issi/is31fl3745.c
index ccf5217230d..aed8876f289 100644
--- a/drivers/led/issi/is31fl3745.c
+++ b/drivers/led/issi/is31fl3745.c
@@ -83,7 +83,7 @@ void is31fl3745_select_page(uint8_t addr, uint8_t page) {
     is31fl3745_write_register(addr, IS31FL3745_REG_COMMAND, page);
 }
 
-void is31fl3745_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3745_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes page 0 is already selected.
     // Transmit PWM registers in 8 transfers of 18 bytes.
 
@@ -91,10 +91,10 @@ void is31fl3745_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < IS31FL3745_PWM_REGISTER_COUNT; i += 18) {
 #if IS31FL3745_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3745_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i + 1, pwm_buffer + i, 18, IS31FL3745_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i + 1, g_pwm_buffer[index] + i, 18, IS31FL3745_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i + 1, pwm_buffer + i, 18, IS31FL3745_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i + 1, g_pwm_buffer[index] + i, 18, IS31FL3745_I2C_TIMEOUT);
 #endif
     }
 }
@@ -196,7 +196,7 @@ void is31fl3745_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         is31fl3745_select_page(addr, IS31FL3745_COMMAND_PWM);
 
-        is31fl3745_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3745_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3745.h b/drivers/led/issi/is31fl3745.h
index f0bffb6c530..3c67f7ecc79 100644
--- a/drivers/led/issi/is31fl3745.h
+++ b/drivers/led/issi/is31fl3745.h
@@ -87,7 +87,6 @@ void is31fl3745_init_drivers(void);
 void is31fl3745_init(uint8_t addr, uint8_t sync);
 void is31fl3745_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3745_select_page(uint8_t addr, uint8_t page);
-void is31fl3745_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3745_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);
 void is31fl3745_set_color_all(uint8_t red, uint8_t green, uint8_t blue);
diff --git a/drivers/led/issi/is31fl3746a-mono.c b/drivers/led/issi/is31fl3746a-mono.c
index 56b311f6536..d66866aacbe 100644
--- a/drivers/led/issi/is31fl3746a-mono.c
+++ b/drivers/led/issi/is31fl3746a-mono.c
@@ -74,7 +74,7 @@ void is31fl3746a_select_page(uint8_t addr, uint8_t page) {
     is31fl3746a_write_register(addr, IS31FL3746A_REG_COMMAND, page);
 }
 
-void is31fl3746a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3746a_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes page 0 is already selected.
     // Transmit PWM registers in 4 transfers of 18 bytes.
 
@@ -82,10 +82,10 @@ void is31fl3746a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < IS31FL3746A_PWM_REGISTER_COUNT; i += 18) {
 #if IS31FL3746A_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3746A_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i + 1, pwm_buffer + i, 18, IS31FL3746A_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i + 1, g_pwm_buffer[index] + i, 18, IS31FL3746A_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i + 1, pwm_buffer + i, 18, IS31FL3746A_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i + 1, g_pwm_buffer[index] + i, 18, IS31FL3746A_I2C_TIMEOUT);
 #endif
     }
 }
@@ -184,7 +184,7 @@ void is31fl3746a_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         is31fl3746a_select_page(addr, IS31FL3746A_COMMAND_PWM);
 
-        is31fl3746a_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3746a_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3746a-mono.h b/drivers/led/issi/is31fl3746a-mono.h
index 12bd501cb54..002a91f1752 100644
--- a/drivers/led/issi/is31fl3746a-mono.h
+++ b/drivers/led/issi/is31fl3746a-mono.h
@@ -87,7 +87,6 @@ void is31fl3746a_init_drivers(void);
 void is31fl3746a_init(uint8_t addr);
 void is31fl3746a_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3746a_select_page(uint8_t addr, uint8_t page);
-void is31fl3746a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3746a_set_value(int index, uint8_t value);
 void is31fl3746a_set_value_all(uint8_t value);
diff --git a/drivers/led/issi/is31fl3746a.c b/drivers/led/issi/is31fl3746a.c
index 216f59271b6..17346f39a43 100644
--- a/drivers/led/issi/is31fl3746a.c
+++ b/drivers/led/issi/is31fl3746a.c
@@ -74,7 +74,7 @@ void is31fl3746a_select_page(uint8_t addr, uint8_t page) {
     is31fl3746a_write_register(addr, IS31FL3746A_REG_COMMAND, page);
 }
 
-void is31fl3746a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3746a_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes page 0 is already selected.
     // Transmit PWM registers in 4 transfers of 18 bytes.
 
@@ -82,10 +82,10 @@ void is31fl3746a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < IS31FL3746A_PWM_REGISTER_COUNT; i += 18) {
 #if IS31FL3746A_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < IS31FL3746A_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i + 1, pwm_buffer + i, 18, IS31FL3746A_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i + 1, g_pwm_buffer[index] + i, 18, IS31FL3746A_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i + 1, pwm_buffer + i, 18, IS31FL3746A_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i + 1, g_pwm_buffer[index] + i, 18, IS31FL3746A_I2C_TIMEOUT);
 #endif
     }
 }
@@ -188,7 +188,7 @@ void is31fl3746a_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         is31fl3746a_select_page(addr, IS31FL3746A_COMMAND_PWM);
 
-        is31fl3746a_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        is31fl3746a_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/issi/is31fl3746a.h b/drivers/led/issi/is31fl3746a.h
index 870b6ebc88e..32647a37bde 100644
--- a/drivers/led/issi/is31fl3746a.h
+++ b/drivers/led/issi/is31fl3746a.h
@@ -89,7 +89,6 @@ void is31fl3746a_init_drivers(void);
 void is31fl3746a_init(uint8_t addr);
 void is31fl3746a_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3746a_select_page(uint8_t addr, uint8_t page);
-void is31fl3746a_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3746a_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);
 void is31fl3746a_set_color_all(uint8_t red, uint8_t green, uint8_t blue);
diff --git a/drivers/led/snled27351-mono.c b/drivers/led/snled27351-mono.c
index 6b1b1456b42..f75e81ef12e 100644
--- a/drivers/led/snled27351-mono.c
+++ b/drivers/led/snled27351-mono.c
@@ -63,7 +63,7 @@ void snled27351_select_page(uint8_t addr, uint8_t page) {
     snled27351_write_register(addr, SNLED27351_REG_COMMAND, page);
 }
 
-void snled27351_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void snled27351_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes PG1 is already selected.
     // Transmit PWM registers in 12 transfers of 16 bytes.
 
@@ -71,10 +71,10 @@ void snled27351_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < SNLED27351_PWM_REGISTER_COUNT; i += 16) {
 #if SNLED27351_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < SNLED27351_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i, pwm_buffer + i, 16, SNLED27351_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 16, SNLED27351_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i, pwm_buffer + i, 16, SNLED27351_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 16, SNLED27351_I2C_TIMEOUT);
 #endif
     }
 }
@@ -196,7 +196,7 @@ void snled27351_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         snled27351_select_page(addr, SNLED27351_COMMAND_PWM);
 
-        snled27351_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        snled27351_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/snled27351-mono.h b/drivers/led/snled27351-mono.h
index 8188b075ff6..3a221156234 100644
--- a/drivers/led/snled27351-mono.h
+++ b/drivers/led/snled27351-mono.h
@@ -157,7 +157,6 @@ void snled27351_init_drivers(void);
 void snled27351_init(uint8_t addr);
 void snled27351_select_page(uint8_t addr, uint8_t page);
 void snled27351_write_register(uint8_t addr, uint8_t reg, uint8_t data);
-void snled27351_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void snled27351_set_value(int index, uint8_t value);
 void snled27351_set_value_all(uint8_t value);
diff --git a/drivers/led/snled27351.c b/drivers/led/snled27351.c
index 43b6982e00e..52ec54c34b4 100644
--- a/drivers/led/snled27351.c
+++ b/drivers/led/snled27351.c
@@ -63,7 +63,7 @@ void snled27351_select_page(uint8_t addr, uint8_t page) {
     snled27351_write_register(addr, SNLED27351_REG_COMMAND, page);
 }
 
-void snled27351_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void snled27351_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes PG1 is already selected.
     // Transmit PWM registers in 12 transfers of 16 bytes.
 
@@ -71,10 +71,10 @@ void snled27351_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     for (uint8_t i = 0; i < SNLED27351_PWM_REGISTER_COUNT; i += 16) {
 #if SNLED27351_I2C_PERSISTENCE > 0
         for (uint8_t j = 0; j < SNLED27351_I2C_PERSISTENCE; j++) {
-            if (i2c_writeReg(addr << 1, i, pwm_buffer + i, 16, SNLED27351_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+            if (i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 16, SNLED27351_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(addr << 1, i, pwm_buffer + i, 16, SNLED27351_I2C_TIMEOUT);
+        i2c_writeReg(addr << 1, i, g_pwm_buffer[index] + i, 16, SNLED27351_I2C_TIMEOUT);
 #endif
     }
 }
@@ -212,7 +212,7 @@ void snled27351_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         snled27351_select_page(addr, SNLED27351_COMMAND_PWM);
 
-        snled27351_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        snled27351_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/drivers/led/snled27351.h b/drivers/led/snled27351.h
index 5c50bf27f19..4b811719d9e 100644
--- a/drivers/led/snled27351.h
+++ b/drivers/led/snled27351.h
@@ -171,7 +171,6 @@ void snled27351_init_drivers(void);
 void snled27351_init(uint8_t addr);
 void snled27351_select_page(uint8_t addr, uint8_t page);
 void snled27351_write_register(uint8_t addr, uint8_t reg, uint8_t data);
-void snled27351_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void snled27351_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);
 void snled27351_set_color_all(uint8_t red, uint8_t green, uint8_t blue);
diff --git a/keyboards/input_club/k_type/is31fl3733-dual.c b/keyboards/input_club/k_type/is31fl3733-dual.c
index ade8af802fe..7e32ba30b0a 100644
--- a/keyboards/input_club/k_type/is31fl3733-dual.c
+++ b/keyboards/input_club/k_type/is31fl3733-dual.c
@@ -75,7 +75,7 @@ bool    g_led_control_registers_update_required[IS31FL3733_DRIVER_COUNT]
 void is31fl3733_write_register(uint8_t index, uint8_t addr, uint8_t reg, uint8_t data) {
 #if IS31FL3733_I2C_PERSISTENCE > 0
     for (uint8_t i = 0; i < IS31FL3733_I2C_PERSISTENCE; i++) {
-        if (i2c_writeReg(index, addr << 1, reg, &data, 1, IS31FL3733_I2C_TIMEOUT) == 0) break;
+        if (i2c_writeReg(index, addr << 1, reg, &data, 1, IS31FL3733_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
     }
 #else
     i2c_writeReg(index, addr << 1, reg, &data, 1, IS31FL3733_I2C_TIMEOUT);
@@ -87,18 +87,18 @@ void is31fl3733_select_page(uint8_t index, uint8_t addr, uint8_t page) {
     is31fl3733_write_register(index, addr, IS31FL3733_REG_COMMAND, page);
 }
 
-void is31fl3733_write_pwm_buffer(uint8_t index, uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t index) {
     // Assumes page 1 is already selected.
     // Transmit PWM registers in 12 transfers of 16 bytes.
 
     // Iterate over the pwm_buffer contents at 16 byte intervals.
-    for (int i = 0; i < IS31FL3733_PWM_REGISTER_COUNT; i += 16) {
+    for (uint8_t i = 0; i < IS31FL3733_PWM_REGISTER_COUNT; i += 16) {
 #if IS31FL3733_I2C_PERSISTENCE > 0
-        for (uint8_t i = 0; i < IS31FL3733_I2C_PERSISTENCE; i++) {
-            if (i2c_writeReg(index, addr << 1, i, pwm_buffer + i, 16, IS31FL3733_I2C_TIMEOUT) == 0) break;
+        for (uint8_t j = 0; j < IS31FL3733_I2C_PERSISTENCE; j++) {
+            if (i2c_writeReg(index, addr << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3733_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
         }
 #else
-        i2c_writeReg(index, addr << 1, i, pwm_buffer + i, 16, IS31FL3733_I2C_TIMEOUT);
+        i2c_writeReg(index, addr << 1, i, g_pwm_buffer[index] + i, 16, IS31FL3733_I2C_TIMEOUT);
 #endif
     }
 }
@@ -216,7 +216,7 @@ void is31fl3733_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
         is31fl3733_select_page(index, addr, IS31FL3733_COMMAND_PWM);
 
-        is31fl3733_write_pwm_buffer(index, addr, g_pwm_buffer[index]);
+        is31fl3733_write_pwm_buffer(addr, index);
 
         g_pwm_buffer_update_required[index] = false;
     }
diff --git a/keyboards/input_club/k_type/is31fl3733-dual.h b/keyboards/input_club/k_type/is31fl3733-dual.h
index 9cdfb29f748..1237fc77d1e 100644
--- a/keyboards/input_club/k_type/is31fl3733-dual.h
+++ b/keyboards/input_club/k_type/is31fl3733-dual.h
@@ -86,7 +86,6 @@ void is31fl3733_init_drivers(void);
 void is31fl3733_init(uint8_t bus, uint8_t addr, uint8_t sync);
 void is31fl3733_write_register(uint8_t index, uint8_t addr, uint8_t reg, uint8_t data);
 void is31fl3733_select_page(uint8_t index, uint8_t addr, uint8_t page);
-void is31fl3733_write_pwm_buffer(uint8_t index, uint8_t addr, uint8_t *pwm_buffer);
 
 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);