UsbDeviceClass Class

Definition

Namespace:

Windows.Devices.Usb

Provides a way for the app to get an Advanced Query Syntax (AQS) string by specifying the class code, subclass code, and the protocol code defined by the device. The properties in this class are passed in the call to GetDeviceClassSelector.

C#

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.UniversalApiContract")]
public sealed class UsbDeviceClass

Inheritance

Object UsbDeviceClass

Attributes

ActivatableAttribute ContractVersionAttribute MarshalingBehaviorAttribute

Windows requirements

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

Examples

This C# code example shows how to specify the device class and subclass codes to obtain a UsbDevice object.

C#

byte deviceClass = 0xf0;
byte deviceSubclass = 0x01;

var myDevices = await
    Windows.Devices.Enumeration.DeviceInformation.FindAllAsync(
        Windows.Devices.Usb.UsbDevice.GetDeviceClassSelector(
            new Windows.Devices.Usb.UsbDeviceClass()
            {
                ClassCode = deviceClass,
                SubclassCode = deviceSubclass
            }));

Remarks

You can create a UsbDeviceClass object by specifying any one of the following sets of properties:

• Class code.
• Class and subclass codes.
• Class, subclass, and protocol codes.

Constructors

UsbDeviceClass()

Creates a UsbDeviceClass object.

Properties

ClassCode	Gets or sets the class code of the device.
ProtocolCode	Gets or sets the protocol code of the device.
SubclassCode	Gets or sets the subclass code of the device.

Applies to