// usbspec.h

typedef enum _USB_DEVICE_SPEED {
  UsbLowSpeed,
  UsbFullSpeed,
  UsbHighSpeed,
  UsbSuperSpeed
} USB_DEVICE_SPEED;
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Windows Driver Kit DDI reference (ne-usbspec-_usb_device_speed)

_USB_DEVICE_SPEED enumeration

Description

The USB_DEVICE_SPEED enumeration defines constants for USB device speeds.

Constants

`UsbLowSpeed`

Indicates a low-speed USB 1.1-compliant device.

`UsbFullSpeed`

Indicates a full-speed USB 1.1-compliant device.

`UsbHighSpeed`

Indicates a high-speed USB 2.0-compliant device.

`UsbSuperSpeed`

Indicates a SuperSpeed USB 3.0-compliant device.

USB_DEVICE_SPEED - NtDoc