diff -r 000000000000 -r a41df078684a kerneltest/e32test/usbho/t_usbdi/src/hostinterrupttransfers.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kerneltest/e32test/usbho/t_usbdi/src/hostinterrupttransfers.cpp	Mon Oct 19 15:55:17 2009 +0100
@@ -0,0 +1,76 @@
+// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// @file hostinterrupttransfers.cpp
+// @internalComponent
+// 
+//
+
+#include "hosttransfers.h"
+#include "testdebug.h"
+
+namespace NUnitTesting_USBDI
+	{
+	
+	
+CInterruptTransfer::CInterruptTransfer(RUsbPipe& aPipe,RUsbInterface& aInterface,TInt aMaxTransferSize,MTransferObserver& aObserver,TInt aTransferId)
+:	CBaseTransfer(aPipe,aInterface,aObserver,aTransferId),
+	iTransferDescriptor(aMaxTransferSize) // Allocate the buffer for interrupt transfers
+	{
+
+	}
+	
+CInterruptTransfer::~CInterruptTransfer()
+	{
+	LOG_FUNC 
+	
+	// Cancel the transfer
+
+	Cancel();
+	}
+	
+	
+TPtrC8 CInterruptTransfer::DataPolled()
+	{
+	return iTransferDescriptor.Buffer();
+	}
+	
+	
+TInt CInterruptTransfer::TransferInL(TInt aSize)
+	{
+	LOG_FUNC
+	
+	// Activate the asynchronous transfer 	
+	RDebug::Printf("Activating interrupt in transfer");
+	iTransferDescriptor.SaveData(aSize);
+	Pipe().Transfer(iTransferDescriptor,iStatus);
+	SetActive();
+	return KErrNone;
+	}
+
+TInt CInterruptTransfer::RegisterTransferDescriptor()
+	{
+	LOG_FUNC
+	
+	// Register the transfer descriptor with the interface	
+	TInt err(Interface().RegisterTransferDescriptor(iTransferDescriptor));
+	if(err != KErrNone)
+		{
+		RDebug::Printf("<Error %d> Unable to register transfer descriptor",err);
+		}
+	return err;
+	}
+	
+
+		
+	}