配置不成功,描述符 都是 抄网上的 demo的
SET_CONFIGURATION 附带的配置 0
网上查到的资料 :如果配置值为零，则设备将处于地址状态(Address state)，等待新的Set Configuration请求进行配置
/* USB Standard Device Descriptor */
const uint8_t Virtual_Com_Port_DeviceDescriptor[] =
{
0x12, /* bLength */
USB_DEVICE_DESCRIPTOR_TYPE, /* bDescriptorType */
0x10,
0x01, /* bcdUSB = 1.1 */
0xFF, /* bDeviceClass: Vendor */
0x00, /* bDeviceSubClass */
0x00, /* bDeviceProtocol */
0x08, /* bMaxPacketSize0 = 8 */
0x86,
0x1A, /* idVendor = 0x1A86 */
0x23,
0x75, /* idProduct = 0x7523 */
0x54,
0x02, /* bcdDevice = 2.54 */
1, /* Index of string descriptor describing manufacturer */
2, /* Index of string descriptor describing product */
3, /* Index of string descriptor describing the device's serial number */
0x01 /* bNumConfigurations */
};
const uint8_t Virtual_Com_Port_ConfigDescriptor[] =
{
/*Configuration Descriptor*/
0x09, /* bLength: Configuration Descriptor size */
USB_CONFIGURATION_DESCRIPTOR_TYPE, /* bDescriptorType: Configuration */
VIRTUAL_COM_PORT_SIZ_CONFIG_DESC, /* wTotalLength:no of returned bytes */
0x00,
0x01, /* bNumInterfaces: 1 interface */
0x01, /* bConfigurationValue: Configuration value */
0x00, /* iConfiguration: Index of string descriptor describing the configuration */
0x80, /* bmAttributes: self powered */
0x32, /* MaxPower 100 mA */
/*Interface Descriptor*/
0x09, /* bLength: Interface Descriptor size */
USB_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType: Interface */
/* Interface descriptor type */
0x00, /* bInterfaceNumber: Number of Interface */
0x00, /* bAlternateSetting: Alternate setting */
0x03, /* bNumEndpoints: 3 endpoints used */
0xFF, /* bInterfaceClass: Vendor Interface Class */
0x01, /* bInterfaceSubClass */
0x02, /* bInterfaceProtocol */
0x00, /* iInterface: */
/* Endpoint 2 IN Descriptor*/
0x07, /* bLength: Endpoint Descriptor size */
USB_ENDPOINT_DESCRIPTOR_TYPE, /* bDescriptorType: Endpoint */
0x82, /* bEndpointAddress: (IN2) */
0x02, /* bmAttributes: Bulk */
VIRTUAL_COM_PORT_DATA_SIZE, /* wMaxPacketSize: */
0x00,
0x00, /* bInterval: */
/* Endpoint 2 OUT Descriptor*/
0x07, /* bLength: Endpoint Descriptor size */
USB_ENDPOINT_DESCRIPTOR_TYPE, /* bDescriptorType: Endpoint */
0x02, /* bEndpointAddress: (OUT2) */
0x02, /* bmAttributes: Bulk */
VIRTUAL_COM_PORT_DATA_SIZE, /* wMaxPacketSize: */
0x00,
0x00, /* bInterval: ignore for Bulk transfer */
/* Endpoint 1 IN Descriptor*/
0x07, /* bLength: Endpoint Descriptor size */
USB_ENDPOINT_DESCRIPTOR_TYPE, /* bDescriptorType: Endpoint */
0x81, /* bEndpointAddress: (IN1) */
0x03, /* bmAttributes: Interrupt */
VIRTUAL_COM_PORT_INT_SIZE, /* wMaxPacketSize: */
0x00,
0x01 /* bInterval */
}; |
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