IWDFUsbInterface::GetInterfaceDescriptor method

The GetInterfaceDescriptor method retrieves a descriptor for a USB interface.

Syntax


void GetInterfaceDescriptor(
  [out]  PUSB_INTERFACE_DESCRIPTOR UsbAltInterfaceDescriptor
);

Parameters

UsbAltInterfaceDescriptor [out]: A pointer to a variable that receives the USB interface descriptor.

Return value

None

Remarks

After a UMDF driver calls the IWDFUsbTargetDevice::RetrieveUsbInterface method to retrieve the first USB interface for the USB device, a UMDF driver should retrieve the descriptor for the USB interface. Therefore, the GetInterfaceDescriptor method does not fail.

For a code example of how to use the GetInterfaceDescriptor method, see IWDFUsbTargetFactory::CreateUsbTargetDevice.

Requirements