/**

* 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:

* Talks directly to the USB Logical Device Driver (LDD) and 

* watches any state changes

* 

*

*/

/**

 @file

*/

#ifndef __CUSBDEVICESTATEWATCHER_H__

#define __CUSBDEVICESTATEWATCHER_H__

#include <e32def.h>

class CUsbDevice;

class RDevUsbcClient;

/**

 * The CUsbDeviceStateWatcher class

 *

 * Talks directly to the USB Logical Device Driver (LDD) and 

 * watches any state changes

 */

NONSHARABLE_CLASS(CUsbDeviceStateWatcher) : public CActive

	{

public:

	static CUsbDeviceStateWatcher* NewL(CUsbDevice& aOwner, RDevUsbcClient& aLdd);

	virtual ~CUsbDeviceStateWatcher();

	inline CUsbDevice& Owner() const;

	// From CActive

	virtual void RunL();

	virtual void DoCancel();

	virtual void Start();

protected:

	CUsbDeviceStateWatcher(CUsbDevice& aOwner, RDevUsbcClient& aLdd);

private:

	CUsbDevice& iOwner;

	RDevUsbcClient& iLdd;

	TUint iState;

	};

#include "CUsbDeviceStateWatcher.inl"

#endif