UsbControlTransferType Enum


Defines constants that indicate the type of USB control transfer: standard, class, or vendor.

public enum class UsbControlTransferType
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
enum class UsbControlTransferType
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
public enum UsbControlTransferType
var value = Windows.Devices.Usb.UsbControlTransferType.standard
Public Enum UsbControlTransferType

Windows requirements

Device family
Windows 10 (introduced in 10.0.10240.0)
API contract
Windows.Foundation.UniversalApiContract (introduced in v1.0)


Class 1

Indicates a class-specific USB control request described by a specific device class specification.

Standard 0

Indicates a standard USB control request that the app can send to obtain information about the device, its configurations, interfaces, and endpoints. The standard requests are described in section 9.4 of the Universal Serial Bus (USB) specification (

Vendor 2

Indicates a vendor-specified USB control request and depends on the requests supported by the device.


For conceptual information about USB control transfers, see "Microsoft-defined methods for sending control transfer requests" in How to send a USB control transfer.

Applies to