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Fix incorrect descriptor length when using USB_STRING_DESCRIPTOR macros.

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This commit is contained in:
Dean Camera 2014-01-27 22:28:53 +11:00
parent c5282637ed
commit b095177e20
1 changed files with 2 additions and 2 deletions
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4
LUFA/Drivers/USB/Core/StdDescriptors.h
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@ -91,13 +91,13 @@
*
* \param[in] String String to initialize a USB String Descriptor structure with.
*/
#define USB_STRING_DESCRIPTOR(String) { .Header = {.Size = (sizeof(String) - 2), .Type = DTYPE_String}, .UnicodeString = String }
#define USB_STRING_DESCRIPTOR(String) { .Header = {.Size = sizeof(USB_Descriptor_Header_t) + (sizeof(String) - 2), .Type = DTYPE_String}, .UnicodeString = String }
/** Convenience macro to easily create \ref USB_Descriptor_String_t instances from an array of characters.
*
* \param[in] ... Characters to initialize a USB String Descriptor structure with.
*/
#define USB_STRING_DESCRIPTOR_ARRAY(...) { .Header = {.Size = sizeof((uint16_t){__VA_ARGS__}), .Type = DTYPE_String}, .UnicodeString = {__VA_ARGS__} }
#define USB_STRING_DESCRIPTOR_ARRAY(...) { .Header = {.Size = sizeof(USB_Descriptor_Header_t) + sizeof((uint16_t){__VA_ARGS__}), .Type = DTYPE_String}, .UnicodeString = {__VA_ARGS__} }
/** Macro to encode a given major/minor/revision version number into Binary Coded Decimal format for descriptor
* fields requiring BCD encoding, such as the USB version number in the standard device descriptor.