diff -r 000000000000 -r d0791faffa3f mtpfws/mtpfw/datatypes/interface/tmtptypeflatbase.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mtpfws/mtpfw/datatypes/interface/tmtptypeflatbase.h	Tue Feb 02 01:11:40 2010 +0200
@@ -0,0 +1,129 @@
+// Copyright (c) 2006-2009 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
+ @publishedPartner
+ @released
+*/
+
+#ifndef TMTPTYPEFLATBASE_H
+#define TMTPTYPEFLATBASE_H
+
+#include <e32std.h>
+#include <mtp/mmtptype.h>
+#include <mtp/mtptypessimple.h>
+
+
+
+/**
+Defines the MTP flat data types base class. Flat data types are used to
+represent MTP datasets comprising a single contiguous sequence of data
+elements, each of a known type and length. This class implements generic
+flat data type storage management capabilities and is intended for derivation
+by concrete classes which implement specific MTP datasets.
+@publishedPartner
+@released
+*/
+class TMTPTypeFlatBase : public MMTPType
+    {
+public:
+
+    IMPORT_C TMTPTypeFlatBase();
+
+    IMPORT_C virtual void Reset();
+
+    IMPORT_C virtual void GetL(TInt aElementId, MMTPType& aElement) const;
+    IMPORT_C virtual void SetL(TInt aElementId, const MMTPType& aElement);
+
+    IMPORT_C virtual void SetInt8(TInt aElementId, TInt8 aData);
+    IMPORT_C virtual void SetInt16(TInt aElementId, TInt16 aData);
+    IMPORT_C virtual void SetInt32(TInt aElementId, TInt32 aData);
+    IMPORT_C virtual void SetInt64(TInt aElementId, TInt64 aData);
+
+    IMPORT_C virtual void SetUint8(TInt aElementId, TUint8 aData);
+    IMPORT_C virtual void SetUint16(TInt aElementId, TUint16 aData);
+    IMPORT_C virtual void SetUint32(TInt aElementId, TUint32 aData);
+    IMPORT_C virtual void SetUint64(TInt aElementId, TUint64 aData);
+
+    IMPORT_C virtual TInt8 Int8(TInt aElementId) const;
+    IMPORT_C virtual TInt16 Int16(TInt aElementId) const;
+    IMPORT_C virtual TInt32 Int32(TInt aElementId) const;
+    IMPORT_C virtual TInt64 Int64(TInt aElementId) const;
+
+    IMPORT_C virtual TUint8 Uint8(TInt aElementId) const;
+    IMPORT_C virtual TUint16 Uint16(TInt aElementId) const;
+    IMPORT_C virtual TUint32 Uint32(TInt aElementId) const;
+    IMPORT_C virtual TUint64 Uint64(TInt aElementId) const;
+
+	inline TPtr8& DataBuffer()
+    {
+    return iBuffer;
+    }
+
+
+
+public: // From MMTPType
+
+    IMPORT_C virtual TInt FirstReadChunk(TPtrC8& aChunk) const;
+    IMPORT_C virtual TInt NextReadChunk(TPtrC8& aChunk) const;
+    IMPORT_C virtual TInt FirstWriteChunk(TPtr8& aChunk);
+    IMPORT_C virtual TInt NextWriteChunk(TPtr8& aChunk);
+    IMPORT_C virtual TUint64 Size() const;
+    IMPORT_C virtual TUint Type() const;
+
+public:
+
+    /**
+    Defines the MTP flat data types element meta data.
+    */
+    struct TElementInfo
+        {
+        /**
+        The element's MTP type identifier.
+        */
+        TInt iType;
+
+        /**
+        The offset (in bytes) of the element data from the start of the managed
+        dataset buffer.
+        */
+        TInt iOffset;
+
+        /**
+        The size (in bytes) of the element data.
+        */
+        TInt iSize;
+        };
+
+protected:
+
+    IMPORT_C virtual void SetBuffer(const TDes8& aBuffer);
+
+	/**
+	Provides the meta data for the specified element.
+	@param aElementId The identifier of the requested element.
+	@return The requested element's meta data.
+	*/
+	virtual const TElementInfo& ElementInfo(TInt aElementId) const = 0;
+
+	//not owned
+	/**
+	The managed MTP dataset buffer.
+	*/
+	TPtr8   iBuffer;
+    };
+
+#endif //TMTPTYPEFLATBASE_H