diff -r 000000000000 -r c9bc50fca66e usbmgmt/usbmgr/device/classdrivers/acm/classimplementation/ecacm/inc/ActiveWriter.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbmgmt/usbmgr/device/classdrivers/acm/classimplementation/ecacm/inc/ActiveWriter.h	Tue Feb 02 02:02:59 2010 +0200
@@ -0,0 +1,72 @@
+/*
+* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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:
+*
+*/
+
+#ifndef __ACTIVEWRITER_H__
+#define __ACTIVEWRITER_H__
+
+#include <e32base.h>
+#include <d32usbc.h>
+
+class RDevUsbcClient;
+class MWriteObserver;
+
+NONSHARABLE_CLASS(CActiveWriter) : public CActive
+/**
+ * Active object to post write requests on the LDD.
+ */
+	{
+public: 									   
+	static CActiveWriter* NewL(MWriteObserver& aParent, RDevUsbcClient& aLdd, TEndpointNumber aEndpoint);
+	~CActiveWriter();
+
+public:
+	void Write(const TDesC8& aDes, 
+		TInt aLen, 
+		TBool aZlp);
+
+private:
+	CActiveWriter(MWriteObserver& aParent, RDevUsbcClient& aLdd, TEndpointNumber aEndpoint);
+
+private: // from CActive
+	virtual void DoCancel();
+	virtual void RunL();
+
+private: // unowned
+	MWriteObserver& iParent;
+	RDevUsbcClient& iLdd;
+
+private: // owned
+	TEndpointNumber iEndpoint;
+
+	enum TWritingState
+		{
+		EFirstMessagePart,
+		EFinalMessagePart,
+		ECompleteMessage,		
+		};
+		
+	enum
+		{
+		KMaxPacketSize = 64, 
+		};
+		
+	TWritingState iWritingState;
+	TPtrC8 iFirstPortion;
+	TPtrC8 iSecondPortion;
+	};
+
+#endif // __ACTIVEWRITER_H__