include: usb: add descriptor and data section macros (cf14a60f) · Commits · Wenxi XU / zephyr

This patch adds USB descriptor and data section macros. Use USBD_DESCR_..._DEFINE macros to place the parts of USB device descriptor in predetermined order in the USB descriptor section. The parts of a device descriptor are also sorted according to the macro argument. All parts of a particular device descriptor must use the same argument. Use USBD_CFG_DATA_DEFINE macro to place the data struct of a class driver or function in the USB data section. Signed-off-by:

Johann Fischer <j.fischer@phytec.de>

include/usb/usb_device.h

+24 −0

Original line number	Diff line number	Diff line
		@@ -43,6 +43,30 @@
		extern "C" {
		#endif

		/*
		* These macros should be used to place the USB descriptors
		* in predetermined order in the RAM.
		*/
		#define USBD_DEVICE_DESCR_DEFINE(p) \
		static __in_section(usb, descriptor_##p, 0) __used
		#define USBD_CLASS_DESCR_DEFINE(p) \
		static __in_section(usb, descriptor_##p, 1) __used
		#define USBD_MISC_DESCR_DEFINE(p) \
		static __in_section(usb, descriptor_##p, 2) __used
		#define USBD_USER_DESCR_DEFINE(p) \
		static __in_section(usb, descriptor_##p, 3) __used
		#define USBD_STRING_DESCR_DEFINE(p) \
		static __in_section(usb, descriptor_##p, 4) __used
		#define USBD_TERM_DESCR_DEFINE(p) \
		static __in_section(usb, descriptor_##p, 5) __used

		/*
		* This macro should be used to place the struct usb_cfg_data
		* inside usb data section in the RAM.
		*/
		#define USBD_CFG_DATA_DEFINE(name) \
		static __in_section(usb, data, name) __used

		/*************************************************************************
		* USB configuration
		**************************************************************************/

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