diff -r 000000000000 -r d0791faffa3f mtpfws/mtpfw/datatypes/src/cmtptypeopaquedata.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mtpfws/mtpfw/datatypes/src/cmtptypeopaquedata.cpp	Tue Feb 02 01:11:40 2010 +0200
@@ -0,0 +1,180 @@
+// 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
+*/
+
+#include <mtp/mtpdatatypeconstants.h>
+#include <mtp/cmtptypeopaquedata.h>
+
+
+const TInt KMaxSizeOfWriteBuffer = 0x00010000; // 64KB
+
+EXPORT_C CMTPTypeOpaqueData* CMTPTypeOpaqueData::NewL()
+    {
+    CMTPTypeOpaqueData* self = NewLC();
+    CleanupStack::Pop(self);
+    return self;
+    }
+
+EXPORT_C CMTPTypeOpaqueData* CMTPTypeOpaqueData::NewLC()
+    {
+    CMTPTypeOpaqueData* self = new(ELeave) CMTPTypeOpaqueData();
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    return self;
+    }
+
+EXPORT_C CMTPTypeOpaqueData* CMTPTypeOpaqueData::NewL(const TDesC8 &aDes)
+    {
+    CMTPTypeOpaqueData* self = NewLC(aDes);
+    CleanupStack::Pop(self);
+    return self;
+    }
+
+EXPORT_C CMTPTypeOpaqueData* CMTPTypeOpaqueData::NewLC(const TDesC8 &aDes)
+    {
+    CMTPTypeOpaqueData* self = new(ELeave) CMTPTypeOpaqueData();
+    CleanupStack::PushL(self);
+    self->ConstructL(aDes);
+    return self;
+    }
+
+void CMTPTypeOpaqueData::ConstructL()
+    {
+    
+    }
+
+CMTPTypeOpaqueData::CMTPTypeOpaqueData():
+    iPtrBuffer(NULL, 0)
+    {
+    
+    }
+
+EXPORT_C CMTPTypeOpaqueData::~CMTPTypeOpaqueData()
+    {
+    iBuffer.Close();
+    }
+
+void CMTPTypeOpaqueData::ConstructL(const TDesC8 &aDes)
+    {
+    iPtrBuffer.Set(const_cast<TUint8*>(aDes.Ptr()), aDes.Length(), aDes.Size());
+    }
+
+EXPORT_C TInt CMTPTypeOpaqueData::FirstReadChunk(TPtrC8& aChunk) const
+    {
+    aChunk.Set(iPtrBuffer);
+
+    return KMTPChunkSequenceCompletion;
+    }
+    
+EXPORT_C TInt CMTPTypeOpaqueData::NextReadChunk(TPtrC8& aChunk) const
+    {
+    aChunk.Set(NULL, 0);
+    return KErrNotReady;
+    }
+
+TInt CMTPTypeOpaqueData::CreateBuffer( const TInt aMaxSize )
+    {
+    TInt err = iBuffer.Create( aMaxSize );
+    if( KErrNone != err)
+        return err;
+      
+    iPtrBuffer.Set(const_cast<TUint8*>(iBuffer.Ptr()), 0, aMaxSize);
+    
+    return KErrNone;
+    }
+
+EXPORT_C TInt CMTPTypeOpaqueData::FirstWriteChunk(TPtr8& aChunk)
+    {
+    if(iPtrBuffer.MaxSize() == 0)
+        {
+        TInt err =  CreateBuffer( KMaxSizeOfWriteBuffer );
+        if( KErrNone != err)
+            return err;
+        }
+    
+    aChunk.Set( const_cast<TUint8*>(iPtrBuffer.Ptr()), 0, iPtrBuffer.MaxSize());
+    
+    return KMTPChunkSequenceCompletion;
+    }
+
+EXPORT_C TInt CMTPTypeOpaqueData::FirstWriteChunk(TPtr8& aChunk, TUint aDataLength )
+    {
+    if(KMaxSizeOfWriteBuffer < aDataLength )
+        return KErrOverflow;
+    
+    TInt size = aDataLength;
+    if( aDataLength <= 0 )
+        {
+        size = KMaxSizeOfWriteBuffer;
+        }
+    
+    TInt err =  CreateBuffer( size );
+    if( KErrNone != err)
+        return err;
+
+    
+    return FirstWriteChunk(aChunk);
+    }
+
+EXPORT_C TInt CMTPTypeOpaqueData::NextWriteChunk(TPtr8& aChunk)
+    {
+    aChunk.Set(NULL, 0, 0);
+    return KErrNotReady;
+    }
+
+EXPORT_C TBool CMTPTypeOpaqueData::CommitRequired() const
+    {
+    return ETrue;
+    }
+
+EXPORT_C MMTPType* CMTPTypeOpaqueData::CommitChunkL(TPtr8& aChunk)
+    {
+    iPtrBuffer.Set(aChunk);
+    return NULL;
+    }
+
+EXPORT_C TUint64 CMTPTypeOpaqueData::Size() const
+    {
+    return iPtrBuffer.Size();
+    }
+
+EXPORT_C TUint CMTPTypeOpaqueData::Type() const
+    {
+    return EMTPTypeOpaqueData;        
+    }
+
+EXPORT_C TInt CMTPTypeOpaqueData::Read(TPtrC8 &aDes) const
+    {
+    aDes.Set( iPtrBuffer );
+    return KErrNone;
+    }
+
+EXPORT_C TInt CMTPTypeOpaqueData::Write( const TPtrC8 &aDes)
+    {
+    if(iBuffer.MaxSize() != 0)
+        {
+        iBuffer.Close();
+        }
+    
+    iPtrBuffer.Set(const_cast<TUint8*>(aDes.Ptr()), aDes.Length(), aDes.Size());
+    return KErrNone;
+    }
+
+   
+