1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 /**

    17  @file

    18  @publishedPartner

    19  @released

    20 */

    21 

    22 #ifndef HCTLUARTPOWEROBSERVER_H

    23 #define HCTLUARTPOWEROBSERVER_H

    24 

    25 #include <e32def.h>

    26 

    27 /**

    28 Interface for monitoring the power state of a UART device and receiving

    29 notification when the power state changes.

    30 

    31 This interface can be implemented by any UART based HCTL implementations

    32 and should be used with the CHCTLUartPowerManager class.

    33 */

    34 class MHCTLUartPowerObserver

    35 	{

    36 public:

    37 	/**

    38 	Called when the power state of the UART device changes. If an error

    39 	is returned then monitoring of the power state will have stopped and

    40 	should be specifically re-started if required.

    41 	

    42 	@param aError Any error that occurred while monitoring power state.

    43 	*/

    44 	virtual void MhupoPowerChange(TInt aError) =0;

    45 	};

    46 

    47 #endif // HCTLUARTPOWEROBSERVER_H