利用CH32V307的例程修改了配置描述符，结果插到usb上识别是两个一个样的VID和PID的设备，一个用libusb安装了驱动，想知道哪里出错了，为啥是两个名字一样的设备！const uint8_t MyDevDescr[ ] =
{
0x12, // bLength
0x01, // bDescriptorType (Device)
0x00, 0x02, // bcdUSB 2.00
0x00, // bDeviceClass
0x00, // bDeviceSubClass
0x00, // bDeviceProtocol
DEF_USBD_UEP0_SIZE, // bMaxPacketSize0 64
(uint8_t)DEF_USB_VID, (uint8_t)(DEF_USB_VID >> 8), // idVendor 0x1A86
(uint8_t)DEF_USB_PID, (uint8_t)(DEF_USB_PID >> 8), // idProduct 0x5537
DEF_IC_PRG_VER, 0x00, // bcdDevice 0.01
0x01, // iManufacturer (String Index)
0x02, // iProduct (String Index)
0x03, // iSerialNumber (String Index)
0x01, // bNumConfigurations 1
};
const uint8_t MyCfgDescr_HS[ ] =
{
/* Configure descriptor */
0x09, 0x02, 0x30, 0x00, 0x02, 0x01, 0x00, 0x80, 0x32,
/* Interface 0 (CDC) descriptor */
0x09, 0x04, 0x00, 0x00, 0x01, 0xff, 0x02, 0x01, 0x00,
/* Interrupt upload endpoint descriptor */
0x07, 0x05, 0x83, 0x03, (uint8_t)DEF_USB_EP3_FS_SIZE, (uint8_t)( DEF_USB_EP3_FS_SIZE >> 8 ), 0x01,
/* Interface 1 (data interface) descriptor */
0x09, 0x04, 0x01, 0x00, 0x02, 0xff, 0x00, 0x00, 0x00,
/* Endpoint descriptor */
0x07, 0x05, 0x02, 0x02, (uint8_t)DEF_USB_EP2_HS_SIZE, (uint8_t)( DEF_USB_EP2_HS_SIZE >> 8 ), 0x00,
/* Endpoint descriptor */
0x07, 0x05, 0x82, 0x02, (uint8_t)DEF_USB_EP2_HS_SIZE, (uint8_t)( DEF_USB_EP2_HS_SIZE >> 8 ), 0x00,
};
没安装驱动的时候，出现两个 usb serial ，这个usb serial是芯片内的名字
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