diff -r a179b74831c9 -r c1f20ce4abcf kernel/eka/include/d32usbcsc.h
--- a/kernel/eka/include/d32usbcsc.h	Thu Aug 19 11:14:22 2010 +0300
+++ b/kernel/eka/include/d32usbcsc.h	Tue Aug 31 16:34:26 2010 +0300
@@ -1,4 +1,4 @@
-// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
+// Copyright (c) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
 // All rights reserved.
 // This component and the accompanying materials are made available
 // under the terms of the License "Eclipse Public License v1.0"
@@ -383,7 +383,7 @@
         EControlGetOtgDescriptor,
         EControlGetOtgFeatures, 
 		EControlRealizeInterface,
-		EControlStartNextInAlternateSetting	
+		EControlStartNextInAlternateSetting
 		};
 
 
@@ -399,13 +399,26 @@
 
 #ifndef __KERNEL_MODE__
 
+
 	/** Opens a channel.
 
 		@param aUnit This should be 0 (zero).
+		@param aShare if this channel can be used in another process.
 
 		@return KErrNone if successful.
 	*/
-	inline TInt Open(TInt aUnit);
+	inline TInt Open(TInt aUnit, TBool aShare=ETrue);
+
+	/** Opens a channel which has created.
+
+		@param aMsg client-server message contain the handle of this channel.
+		@param aPos index of message slot that contain handle.
+		@param aType ownership type of the handle.
+
+		@return KErrNone if successful.
+	*/
+
+	inline TInt Open(RMessagePtr2 aMsg, TInt aIndex, TOwnerType aType=EOwnerProcess);
 
 	inline TVersion VersionRequired() const;
 
@@ -1295,8 +1308,17 @@
 	@return KErrNone on success otherwise a system wide error code, if an error has occurred.
 	*/
 	IMPORT_C TInt GetDataTransferChunk(RChunk*& aChunk);
+	/**
+	Call this function to reset alternate setting related data to initial state,
+	this API should be called when device state goes to undefined.
+	*/
+	IMPORT_C void ResetAltSetting();
+
+	
 
 private:
+ 	/** @internalTechnology */
+	TInt Empty(TUint aBufferOffset);
 	/** @internalTechnology */
 	TInt Drain(TUint aBuffer);
 	/** @internalTechnology */ 
@@ -1487,6 +1509,8 @@
 	*/
 	inline TInt GetEndpointNumber();
 
+	inline TInt BufferNumber();
+
 private:
 	/** @internalTechnology */
 	void Construct(RDevUsbcScClient* aClient, TUint8* aBaseAddr, const TUsbcScHdrEndpointRecord* aEpType,