USB2.0规范
USB 描述符类型编号大全
2021-10-15
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USB规范定义了不同的描述符,如设备描述符为1，配置描述符为2，字符串描述符为3，接口描述符为4，端点描述符为5…,，他们的类别编号定义如下：
USB2.0规范定义的描述符类型
| 描述符类型 | 值 |
|---|---|
| DEVICE | 1 |
| CONFIGURATION | 2 |
| STRING | 3 |
| INTERFACE | 4 |
| ENDPOINT | 5 |
| DEVICE_QUALIFIER | 6 |
| OTHER_SPEED_CONFIGURATION | 7 |
| INTERFACE_POWER | 8 |
| HID_HID_DESCRIPTOR_TYPE | 0x21 |
| HID_REPORT_DESCRIPTOR_TYPE | 0x22 |
| HID_PHYSICAL_DESCRIPTOR_TYPE | 0x23 |
| USB_VIDEO_DESCRIPTOR(UVC) | 0x24 |
| VC_INTERRUPT_ENDPOINT_DESCRIPTOR(UVC) | 0x25 |
USB3.2规范定义描述符类型
| 描述符类型 | 值 |
|---|---|
| DEVICE | 1 |
| CONFIGURATION | 2 |
| STRING | 3 |
| INTERFACE | 4 |
| ENDPOINT | 5 |
| Reserved | 6 |
| Reserved | 7 |
| INTERFACE_POWER1 | 8 |
| OTG | 9 |
| DEBUG | 10 |
| INTERFACE_ASSOCIATION | 11 |
| BOS | 15 |
| DEVICE CAPABILITY | 16 |
| SUPERSPEED_USB_ENDPOINT_COMPANION | 48 |
| SUPERSPEEDPLUS_ISOCHRONOUS_ENDPOINT_COMPANION | 49 |
Windows头文件定义的描述符类型
Windows中usbspec.h定义如下：
//
// USB 1.1: 9.4 Standard Device Requests, Table 9-5. Descriptor Types
//
#define USB_DEVICE_DESCRIPTOR_TYPE 0x01
#define USB_CONFIGURATION_DESCRIPTOR_TYPE 0x02
#define USB_STRING_DESCRIPTOR_TYPE 0x03
#define USB_INTERFACE_DESCRIPTOR_TYPE 0x04
#define USB_ENDPOINT_DESCRIPTOR_TYPE 0x05
//
// USB 2.0: 9.4 Standard Device Requests, Table 9-5. Descriptor Types
//
#define USB_DEVICE_QUALIFIER_DESCRIPTOR_TYPE 0x06
#define USB_OTHER_SPEED_CONFIGURATION_DESCRIPTOR_TYPE 0x07
#define USB_INTERFACE_POWER_DESCRIPTOR_TYPE 0x08
//
// USB 3.0: 9.4 Standard Device Requests, Table 9-5. Descriptor Types
//
#define USB_OTG_DESCRIPTOR_TYPE 0x09
#define USB_DEBUG_DESCRIPTOR_TYPE 0x0A
#define USB_INTERFACE_ASSOCIATION_DESCRIPTOR_TYPE 0x0B
#define USB_BOS_DESCRIPTOR_TYPE 0x0F
#define USB_DEVICE_CAPABILITY_DESCRIPTOR_TYPE 0x10
#define USB_SUPERSPEED_ENDPOINT_COMPANION_DESCRIPTOR_TYPE 0x30
//
// USB 3.1: 9.4 Standard Device Requests, Table 9-6. Descriptor Types
//
#define USB_SUPERSPEEDPLUS_ISOCH_ENDPOINT_COMPANION_DESCRIPTOR_TYPE 0x31
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