diff -r 000000000000 -r c9bc50fca66e usbmgmt/usbmgr/device/classdrivers/acm/classimplementation/ecacm/public/AcmInterface.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbmgmt/usbmgr/device/classdrivers/acm/classimplementation/ecacm/public/AcmInterface.h	Tue Feb 02 02:02:59 2010 +0200
@@ -0,0 +1,60 @@
+/*
+* Copyright (c) 1997-2009 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:
+*
+*/
+
+#ifndef __ACMINTERFACE_H__
+#define __ACMINTERFACE_H__
+
+/** @file
+Public interface to ECACM CSY.
+@publishedPartner
+@released
+*/
+
+#include <e32std.h>
+
+/**
+The root of the CSY filename. Use this in LoadCommModule.
+*/
+_LIT(KAcmCsyName, "ECACM"); 
+
+/**
+The name of the CSerial, and consequently the root of the ACM port name 
+ACM::0. Use this in Open (and UnloadCommModule, if you're not closing your 
+session anyway).
+*/
+_LIT(KAcmSerialName, "ACM"); 
+
+/**
+Lowest valid value of %d in calls to Open(_L("ACM::%d")).
+For the highest valid value of %d in calls to Open(_L("ACM::%d")), use RCommServ::GetPortInfo.
+Note that if USB services are stopped/idle (see RUsb::GetServiceState) the high unit value will 
+be incorrect. Under these circumstances, no ACM ports are may be opened, but TSerialInfo cannot
+express this.
+When USB services are starting/started/stopping, the given high unit will accurately reflect 
+the highest available port number. Note that this numerical value will depend on the current 
+USB personality (see RUsb) and also potentially whether USB is fully started or in a transitional
+state (starting or stopping).
+*/
+const TUint KAcmLowUnit = 0;
+
+/**
+@deprecated RCommServ::GetPortInfo is the preferred method for determining the number of available ports.
+@see RCommServ::GetPortInfo
+*/	
+const TUint KAcmHighUnit = 0; 
+
+#endif // __ACMINTERFACE_H__