--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbmgmt/usbmgr/host/functiondrivers/ms/msmm/server/inc/msmmengine.h	Tue Feb 02 02:02:59 2010 +0200
@@ -0,0 +1,111 @@
+/*
+* 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 MSMMENGINE_H
+#define MSMMENGINE_H
+
+#include <e32base.h>
+class TUSBMSDeviceDescription;
+class TMsmmNodeBase;
+class TUsbMsInterface;
+class TUsbMsLogicalUnit;
+class TUsbMsDevice;
+
+NONSHARABLE_CLASS(CMsmmEngine) : public CBase
+    {
+public:
+    virtual ~CMsmmEngine();
+    static CMsmmEngine* NewL();
+    static CMsmmEngine* NewLC();
+
+public:
+
+    /**
+    Called to add a Usb MS device node
+    @param aDevice The device currently attched
+    */
+    void AddUsbMsDeviceL(const TUSBMSDeviceDescription& aDevice);
+        
+    /**
+    Called to add a Usb MS interface node
+    @param aDevice The device to which current interface belongs
+    @param aInterfaceNode Currently adding interface node
+    */
+    TUsbMsInterface* AddUsbMsInterfaceL(TInt aDeviceId, 
+            TUint8 aInterfaceNumber, TInt32 aInterface);
+    
+    /**
+    Called to add a Usb MS LU node
+    @param aDeviceId The device identifier of the device by which current 
+        logical unit supported
+    @param aInterfaceNumber The interface number value of the interface
+        to which current logical unit belongs
+    @param aLogicalUnitNumber Current LU number value
+    @param aDrive The drive on which current LU mounted
+    */
+    void AddUsbMsLogicalUnitL(TInt aDeviceId, TInt aInterfaceNumber, 
+            TInt aLogicalUnitNumber, TText aDrive);
+    
+    /**
+    Called to remove a Usb MS node
+    @param aNodeToBeRemoved The node to be removed
+    */
+    void RemoveUsbMsNode(TMsmmNodeBase* aNodeToBeRemoved);
+    
+    /**
+    Called to search a particular device in engine
+    @param aDeviceId The related device identifier of the device node
+    @return Pointer to the device node found out in the data engine
+    */
+    TUsbMsDevice* SearchDevice(TInt aDeviceId) const;
+        
+    /**
+    Called to search a particular device in engine. Intends to be used
+    when a parent device node is available.
+    @param aDevice The parent device node of the interface node 
+        currently searched 
+    @param aInterfaceNumber The related interface number value of the 
+        interface node
+    @return Pointer to the device node found out in the data engine
+    */
+    TUsbMsInterface* SearchInterface(TMsmmNodeBase* aDevice, 
+            TInt aInterfaceNumber) const;
+    
+protected:
+    CMsmmEngine();
+    void ConstructL();
+
+private:
+
+    // Called to add a new USB MS interface node into data engine.
+    TUsbMsInterface* AddUsbMsInterfaceNodeL(TUsbMsDevice* iParent,
+            TInt aInterfaceNumber, TInt aInterfaceToken);
+    
+    // Called to add a new USB MS logical unit node into data engine.
+    TUsbMsLogicalUnit* AddUsbMsLogicalUnitNodeL(TUsbMsInterface* iParent,
+            TInt aLogicalUnitNumber, TText aDrive);
+
+private:
+    TMsmmNodeBase* iDataEntrys; // Usb Ms device tree
+    };
+
+#endif /*MSMMENGINE_H*/