1 /*

     2 * Copyright (c) 2005-2009 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 * Interface presented by Usbman down to the concrete Usbman Extension Plugins.

    16 *

    17 */

    18 

    19 /**

    20  @file

    21  @publishedPartner

    22  @released

    23 */

    24 

    25 #ifndef USBMANEXTENSIONPLUGINOBSERVER_H

    26 #define USBMANEXTENSIONPLUGINOBSERVER_H

    27 

    28 #include <e32base.h>

    29 #include <d32usbc.h>

    30 

    31 class MUsbDeviceNotify;

    32 

    33 class MUsbmanExtensionPluginObserver

    34 	{

    35 

    36 public:

    37 	/**

    38 	Called by the plugin to get a RDevUsbcClient handle from its owner

    39 	@return RDevUsbcClient handle

    40 	*/

    41 	IMPORT_C RDevUsbcClient& DevUsbcClient();

    42 

    43 	/**

    44 	Called by the plugin to register for device/service state changes from its owner

    45 	@param aObserver The observer to register for state changes

    46 	*/

    47 	IMPORT_C void RegisterStateObserverL(MUsbDeviceNotify& aObserver);

    48 

    49 private:

    50 	/**

    51 	@see DevUsbcClient.

    52 	*/

    53 	virtual RDevUsbcClient& MuepoDoDevUsbcClient() = 0;

    54 

    55 	/**

    56 	@see RegisterStateObserverL.

    57 	*/

    58 	virtual void MuepoDoRegisterStateObserverL(MUsbDeviceNotify& aObserver) = 0;

    59 	};

    60 

    61 #endif // USBMANEXTENSIONPLUGINOBSERVER_H