/*

* Copyright (c) 2008-2009 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:

*

*/

/**

 @file

 @internalComponent

*/

#ifndef HANDLERINTERFACE_H

#define HANDLERINTERFACE_H

// USB MS sub-command creator class

// Intend to be used by event handler and some sub-commands.

class MUsbMsSubCommandCreator

    {

public:

    // Interface to create new sub-cmmand method.

    virtual void CreateSubCmdForRetrieveDriveLetterL(

            TInt aLogicalUnitCount) = 0;

    virtual void CreateSubCmdForMountingLogicalUnitL(

            TText aDrive, TInt aLuNumber) = 0;

    virtual void CreateSubCmdForSaveLatestMountInfoL(

            TText aDrive, TInt aLuNumber) = 0;    

    };

// USB MS event handler interface class

// Intend to be used by sub-command objects

class MUsbMsEventHandler

    {

public:

    // Activate the handler

    virtual void Start() = 0;

    // Complete current request. 

    // Intend to be used by sync command to simulate async behavior.

    virtual void Complete(TInt aError = KErrNone) = 0;

    virtual TRequestStatus& Status() const = 0;

    };

#endif /*HANDLERINTERFACE_H*/