1 /**

     2 * Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

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

    16 * watches any state changes

    17 * 

    18 *

    19 */

    20 

    21 

    22 

    23 /**

    24  @file

    25 */

    26 

    27 #ifndef __CUSBDEVICESTATEWATCHER_H__

    28 #define __CUSBDEVICESTATEWATCHER_H__

    29 

    30 #include <e32def.h>

    31 

    32 class CUsbDevice;

    33 class RDevUsbcClient;

    34 

    35 /**

    36  * The CUsbDeviceStateWatcher class

    37  *

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

    39  * watches any state changes

    40  */

    41 NONSHARABLE_CLASS(CUsbDeviceStateWatcher) : public CActive

    42 	{

    43 public:

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

    45 	virtual ~CUsbDeviceStateWatcher();

    46 

    47 	inline CUsbDevice& Owner() const;

    48 

    49 	// From CActive

    50 	virtual void RunL();

    51 	virtual void DoCancel();

    52 

    53 	virtual void Start();

    54 

    55 protected:

    56 	CUsbDeviceStateWatcher(CUsbDevice& aOwner, RDevUsbcClient& aLdd);

    57 

    58 private:

    59 	CUsbDevice& iOwner;

    60 	RDevUsbcClient& iLdd;

    61 	TUint iState;

    62 	};

    63 

    64 #include "CUsbDeviceStateWatcher.inl"

    65 

    66 #endif

    67