9#define USBCLASS_DEVICE 0x00
10#define USBCLASS_AUDIO 0x01
11#define USBCLASS_HID 0x03
12#define USBCLASS_STORAGE 0x08
uint8_t bInterfaceSubClass
uint8_t bAlternateSetting
uint8_t bInterfaceProtocol
uint8_t bNumConfigurations
uint8_t bConfigurationValue