Microsoft.Protocols.TestSuites.Rdpeusb.RdpeusbTestSutie.BVT_EUSB_OperateIo_TransferIn C# (CSharp) Method

        public void BVT_EUSB_OperateIo_TransferIn()
        {
            LogComment("BVT_EUSB_OperateIo_TransferIn");

            LogComment("1. Creates the control virtual channel, exchanges capabilities then notifies that the channel is created.");
            context.ControlChannel = CreateVirtualChannel();

            LogComment("2. Receives an add virtual channel request.");
            rdpeusbAdapter.ExpectAddVirtualChannel(context.ControlChannel);

            LogComment("3. Creates a new virtual channel for the device.");
            DynamicVirtualChannel channel = CreateVirtualChannel();

            LogComment("4. Receives an add device request.");
            EusbDeviceContext device = rdpeusbAdapter.ExpectAddDevice(channel);

            LogComment("5. Registers a callback to provide the Request Completion Interface to the client.");
            uint interfaceId = IdGenerator.NewId();
            rdpeusbAdapter.RegisterCallback(device, 1, interfaceId);

            LogComment("6. Sends TS_URB_CONTROL_DESCRIPTOR_REQUEST passing the buffer size as the size of " +
                "USB_STRING_DESCRIPTOR a transfer in request.");
            uint requestId = IdGenerator.NewId();
            TS_URB_CONTROL_DESCRIPTOR_REQUEST des = new UrbBuilder(
                URB_FUNCTIONID.URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE,
                requestId,
                0).BuildStringDescriptorRequest(1);
            rdpeusbAdapter.TransferInRequest(device, des, USB_STRING_DESCRIPTOR.DefaultSize);

            LogComment("7. Receives a completion message to retrieve the descriptor size specified as the " +
                "member bLength in the USB_STRING_DESCRIPTOR.");
            EusbPdu pdu = rdpeusbAdapter.ExpectCompletion(device.VirtualChannel);
            ReqCapturer.VerifyUrbCompletion((EusbUrbCompletionPdu)pdu, des, interfaceId);
            USB_STRING_DESCRIPTOR res = ParseStringDescriptor(pdu);

            LogComment("8. Sends TS_URB_CONTROL_DESCRIPTOR_REQUEST with the buffer size as bLength.");
            rdpeusbAdapter.TransferInRequest(device, des, res.bLength);

            LogComment("9. Receives and parses the descriptor result.");
            pdu = rdpeusbAdapter.ExpectCompletion(device.VirtualChannel);
            ReqCapturer.VerifyUrbCompletion((EusbUrbCompletionPdu)pdu, des, interfaceId);
            res = ParseStringDescriptor(pdu);

            LogComment("The device string descriptor is '{0}'.", res.bString);

            LogComment("10. Sends retract device request and the channel for the device is expected to be closed.");
            rdpeusbAdapter.RetractDevice(device, USB_RETRACT_REASON.UsbRetractReason_BlockedByPolicy);
        }