diff -r 000000000000 -r a2952bb97e68 mmappfw_plat/playback_helper_api/inc/devsoundif.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmappfw_plat/playback_helper_api/inc/devsoundif.h	Thu Dec 17 08:55:47 2009 +0200
@@ -0,0 +1,71 @@
+/*
+* Copyright (c) 2008 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:  Implementation of CDevSoundIf
+*
+*/
+
+// Version : %version: 4 %
+
+
+
+#ifndef __DEVSOUNDIF_H
+#define __DEVSOUNDIF_H
+
+class CMMFDevSound;
+
+NONSHARABLE_CLASS(CDevSoundIf) 
+{
+
+
+    public:  // Constructors and destructor
+        
+        /**
+        * Two-phased constructor.
+        */
+        IMPORT_C static CDevSoundIf* NewL();
+        
+        /**
+        * Destructor.
+        */
+        IMPORT_C virtual ~CDevSoundIf();
+
+    public: // New functions
+        
+        /**
+        * Get number of volume steps
+        * @since 9.2
+        * @return number of volume steps
+        */
+        IMPORT_C TInt GetNumberOfVolumeSteps();
+
+    private:
+
+        /**
+        * C++ default constructor.
+        */
+        CDevSoundIf();
+
+        /**
+        * By default Symbian 2nd phase constructor is private.
+        */
+        void ConstructL();
+
+    private:    // Data
+
+        CMMFDevSound* iDevSound;        
+};
+
+#endif      // __DEVSOUNDIF_H
+            
+// End of File