USB DFU device update API

USB DFU device update API. More...

Macros
#define	USBD_DFU_DEFINE_IMG(id, iname, ipriv, iread, iwrite, inext)
	Define USB DFU image.

Detailed Description

USB DFU device update API.

Macro Definition Documentation

USBD_DFU_DEFINE_IMG

#define USBD_DFU_DEFINE_IMG	(		id,
			iname,
			ipriv,
			iread,
			iwrite,
			inext
	)

#include <include/zephyr/usb/class/usbd_dfu.h>

Value:

        static __noinit struct usb_if_descriptor usbd_dfu_iface_##id;                   \
                                                                                        \
        USBD_DESC_STRING_DEFINE(usbd_dfu_str_##id, iname, USBD_DUT_STRING_INTERFACE);   \
                                                                                        \
        static const STRUCT_SECTION_ITERABLE(usbd_dfu_image, usbd_dfu_image_##id) = {   \
                .name = iname,                                                          \
                .if_desc = &usbd_dfu_iface_##id,                                        \
                .priv = ipriv,                                                          \
                .sd_nd = &usbd_dfu_str_##id,                                            \
                .read_cb = iread,                                                       \
                .write_cb = iwrite,                                                     \
                .next_cb = inext,                                                       \
        }

Define USB DFU image.

Use this macro to create USB DFU image

The callbacks must be in form:

static int read(void *const priv, const uint32_t block, const uint16_t size,
                uint8_t buf[static CONFIG_USBD_DFU_TRANSFER_SIZE])
{
        int len;
 
        return len;
}
 
static int write(void *const priv, const uint32_t block, const uint16_t size,
                 const uint8_t buf[static CONFIG_USBD_DFU_TRANSFER_SIZE])
{
        return 0;
}
 
static bool next(void *const priv,
                 const enum usb_dfu_state state, const enum usb_dfu_state next)
{
        return true;
}

Parameters

id	Identifier by which the linker sorts registered images
iname	Image name as used in interface descriptor
iread	Image read callback
iwrite	Image write callback
inext	Notify/confirm next state