diff -r 000000000000 -r bde4ae8d615e os/kernelhwsrv/kernel/eka/include/drivers/usbdi_channel.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/kernelhwsrv/kernel/eka/include/drivers/usbdi_channel.h	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,70 @@
+// 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
+ @internalComponent
+*/
+
+#ifndef USBDI_CHANNEL_H
+#define USBDI_CHANNEL_H
+
+class DUsbInterface;
+class DUsbPageList;
+
+/**
+  Logical Device (factory class) for USBDI
+*/
+NONSHARABLE_CLASS(DUsbdiFactory) : public DLogicalDevice
+	{
+public:
+	DUsbdiFactory();
+	~DUsbdiFactory();
+
+private:
+	//	Inherited from DLogicalDevice
+	virtual TInt Install();
+	virtual void GetCaps(TDes8& aDes) const;
+	virtual TInt Create(DLogicalChannelBase*& aChannel);
+	};
+	
+
+NONSHARABLE_CLASS(DUsbdiChannel) : public DLogicalChannelBase
+	{
+public:
+	DUsbdiChannel();
+
+	TInt DoCreate(TInt aUnit, const TDesC8* aInfo, const TVersion& aVer);
+	TInt Request(TInt aReqNo, TAny* a1, TAny* a2);
+
+	virtual void CloseChannel();
+
+private:
+	~DUsbdiChannel();
+	TInt Close();
+
+	TInt AllocChunk(TInt aRequestSize, TInt* aChunkHandle, TInt* aOffset);
+	void CloseChunk();
+
+	TInt HandleControl(TInt aReqNo, TAny* a1, TAny* a2);
+	TInt HandleRequest(TInt aReqNo, TRequestStatus* aReq, TAny* a1, TAny* a2);
+	TInt HandleCancel(TUint aCancelMask);
+	
+private:
+	DUsbInterface* iInterface;
+	DUsbPageList* iPageList; // Owns the shared chunk
+	};
+
+#endif