// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).+
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// All rights reserved.+
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// This component and the accompanying materials are made available+
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// under the terms of "Eclipse Public License v1.0"+
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// which accompanies this distribution, and is available+
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".+
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//+
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// Initial Contributors:+
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// Nokia Corporation - initial contribution.+
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//+
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// Contributors:+
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//+
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// Description:+
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//+
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+
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/**+
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 @file+
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 @publishedPartner+
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 @released+
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*/+
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+
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#ifndef HCTLUARTPOWEROBSERVER_H+
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#define HCTLUARTPOWEROBSERVER_H+
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+
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#include <e32def.h>+
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+
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/**+
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Interface for monitoring the power state of a UART device and receiving+
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notification when the power state changes.+
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+
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This interface can be implemented by any UART based HCTL implementations+
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and should be used with the CHCTLUartPowerManager class.+
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*/+
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class MHCTLUartPowerObserver+
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	{+
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public:+
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	/**+
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	Called when the power state of the UART device changes. If an error+
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	is returned then monitoring of the power state will have stopped and+
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	should be specifically re-started if required.+
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	+
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	@param aError Any error that occurred while monitoring power state.+
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	*/+
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	virtual void MhupoPowerChange(TInt aError) =0;+
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	};+
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+
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#endif // HCTLUARTPOWEROBSERVER_H+
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