RL-USB V6.X自定义描述符
原始定义：
/* USB Device 0 Endpoint 0 Descriptor */
extern const uint8_t usbd0_ep0_descriptor[];
__WEAK const uint8_t usbd0_ep0_descriptor[] __ALIGNED(4) = { USBD_EP0(0) };
/* USB Device 0 Standard Descriptor */
extern const uint8_t usbd0_device_descriptor[];
__WEAK const uint8_t usbd0_device_descriptor[] __ALIGNED(4) = {
USB_DEVICE_DESC_SIZE, /* bLength */
USB_DEVICE_DESCRIPTOR_TYPE, /* bDescriptorType */
WBVAL(USBD0_BDC_USB), /* bcdUSB */
#if (USBD0_USE_IAD)
USB_DEVICE_CLASS_MISCELLANEOUS, /* bDeviceClass (use from Interface Association Descriptors) */
0x02, /* bDeviceSubClass (use from Interface Association Descriptors) */
0x01, /* bDeviceProtocol (use from Interface Association Descriptors) */
#elif (((USBD0_CDC_CNT == 1U) && (USBD0_CDC_ACM_CNT == 1U)) || \
((USBD0_CDC_CNT == 1U) && (USBD0_CDC_NCM_CNT == 1U)))
CDC_COMMUNICATION_INTERFACE_CLASS, /* bDeviceClass */
0x00, /* bDeviceSubClass */
0x00, /* bDeviceProtocol */
#else
0x00, /* bDeviceClass (use from Interface Descriptors) */
0x00, /* bDeviceSubClass (use from Interface Descriptors) */
0x00, /* bDeviceProtocol (use from Interface Descriptors) */
#endif
USBD0_MAX_PACKET0, /* bMaxPacketSize0 */
WBVAL(USBD0_DEV_DESC_IDVENDOR), /* idVendor */
WBVAL(USBD0_DEV_DESC_IDPRODUCT), /* idProduct */
WBVAL(USBD0_DEV_DESC_BCDDEVICE), /* bcdDevice */
0x01, /* iManufacturer */
0x02, /* iProduct */
0x03*USBD0_STR_DESC_SER_EN, /* iSerialNumber */
0x01 /* bNumConfigurations: one possible configuration */
};
自定义：
const uint8_t usbd0_device_descriptor[] __ALIGNED(4) = {
0x12, /* bLength */
0x01,
0x10,
0x01,
0xef,
0x02,
0x01,
0x08,
0x51,
0xC2,
0x05,
0x35,
0x00,
0x01,
0x01,
0x02,
0x03,
0x01
};
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