From 832817548235e93e0be54bbe6986135aca170944 Mon Sep 17 00:00:00 2001 From: Dean Camera Date: Wed, 8 Jan 2014 10:41:16 +1100 Subject: Add USB_STRING_DESCRIPTOR_ARRAY() macro, update demos where required. --- LUFA/Drivers/USB/Core/StdDescriptors.h | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) (limited to 'LUFA/Drivers/USB/Core/StdDescriptors.h') diff --git a/LUFA/Drivers/USB/Core/StdDescriptors.h b/LUFA/Drivers/USB/Core/StdDescriptors.h index cfd42c4d9..624f3dea3 100644 --- a/LUFA/Drivers/USB/Core/StdDescriptors.h +++ b/LUFA/Drivers/USB/Core/StdDescriptors.h @@ -85,6 +85,20 @@ */ #define USB_STRING_LEN(UnicodeChars) (sizeof(USB_Descriptor_Header_t) + ((UnicodeChars) << 1)) + /** Convenience macro to easily create \ref USB_Descriptor_String_t instances from a wide character string. + * + * \note This macro is for little-endian systems only. + * + * \param[in] String String to initialize a USB String Descriptor structure with. + */ + #define USB_STRING_DESCRIPTOR(String) { .Header = {.Size = sizeof(String), .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__} } + /** 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. * @@ -706,9 +720,6 @@ #endif } ATTR_PACKED USB_Descriptor_String_t; - /** Convenience macro to easily create \ref USB_Descriptor_String_t instances without having to count characters. */ - #define USB_STRING_DESCRIPTOR(string) {.Header = {.Size = sizeof(string), .Type = DTYPE_String}, .UnicodeString = string} - /** \brief Standard USB String Descriptor (USB-IF naming conventions). * * Type define for a standard string descriptor. Unlike other standard descriptors, the length -- cgit v1.2.3