diff -r 000000000000 -r c9bc50fca66e usbmgmt/usbmgr/device/classdrivers/acm/classimplementation/ecacm/src/linkstatenotifier.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbmgmt/usbmgr/device/classdrivers/acm/classimplementation/ecacm/src/linkstatenotifier.cpp	Tue Feb 02 02:02:59 2010 +0200
@@ -0,0 +1,160 @@
+/*
+* 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:
+*
+*/
+
+#include <e32base.h>
+#include <d32usbc.h>
+#include <usb/usblogger.h>
+#include "AcmPanic.h"
+#include "linkstatenotifier.h"
+
+#ifdef __FLOG_ACTIVE
+_LIT8(KLogComponent, "ECACM");
+#endif
+
+CLinkStateNotifier* CLinkStateNotifier::NewL(MLinkStateObserver& aParent, RDevUsbcClient& aUsb)
+	{
+	LOG_STATIC_FUNC_ENTRY
+	
+	CLinkStateNotifier* self = new (ELeave) CLinkStateNotifier(aParent, aUsb);
+	return self;
+	}
+
+
+CLinkStateNotifier::CLinkStateNotifier(MLinkStateObserver& aParent, RDevUsbcClient& aUsb)
+	 : CActive(EPriorityStandard),
+	   iParent(aParent), iUsb(aUsb)
+	{
+	LOG_FUNC
+	
+	CActiveScheduler::Add(this);
+	}
+
+
+
+/**
+CObexUsbHandler destructor.
+*/
+CLinkStateNotifier::~CLinkStateNotifier()
+	{
+	LOG_FUNC
+	Cancel();
+	}
+
+
+/**
+Standard active object error function.
+
+@return	KErrNone because currently nothing should cause this to be called.
+*/
+TInt CLinkStateNotifier::RunError(TInt /*aError*/)
+	{
+	return KErrNone;
+	}
+
+
+/**
+This function will be called upon a change in the state of the device
+(as set up in AcceptL).
+*/
+void CLinkStateNotifier::RunL()
+	{
+	LOGTEXT2(_L8("CObexUsbHandler::RunL called state=0x%X"), iUsbState);
+	
+	if (iStatus != KErrNone)
+		{
+		LOGTEXT2(_L8("CObexUsbHandler::RunL() - Error = %d"),iStatus.Int());
+		LinkDown();
+		iParent.MLSOStateChange(KDefaultMaxPacketTypeBulk);
+
+		return;
+		}
+
+	if (!(iUsbState & KUsbAlternateSetting))
+		{
+		TUsbcDeviceState deviceState = static_cast<TUsbcDeviceState>(iUsbState);
+
+		switch(deviceState)
+			{
+		case EUsbcDeviceStateUndefined:
+			LinkDown();
+			break;
+				
+		case EUsbcDeviceStateAttached:
+		case EUsbcDeviceStatePowered:
+		case EUsbcDeviceStateDefault:
+		case EUsbcDeviceStateAddress:
+		case EUsbcDeviceStateSuspended:
+			break;
+
+		case EUsbcDeviceStateConfigured:
+			LinkUp();
+			break;
+
+		default:
+			__ASSERT_DEBUG(false, _USB_PANIC(KAcmPanicCat, EPanicUnknownDeviceState));
+			break;
+			}
+		}
+
+	iParent.MLSOStateChange(iPacketSize || KDefaultMaxPacketTypeBulk);
+
+	// Await further notification of a state change.
+	iUsb.AlternateDeviceStatusNotify(iStatus, iUsbState);
+	SetActive();
+	}
+
+
+/**
+Standard active object cancellation function.
+*/
+void CLinkStateNotifier::DoCancel()
+	{
+	LOG_FUNC
+
+	iUsb.AlternateDeviceStatusNotifyCancel();
+	}
+
+
+
+/**
+Accept an incoming connection.
+*/
+void CLinkStateNotifier::Start()
+	{
+	LOG_FUNC
+	iUsb.AlternateDeviceStatusNotify(iStatus, iUsbState);
+	SetActive();
+	}
+
+
+void CLinkStateNotifier::LinkUp()
+	{
+	if (iUsb.CurrentlyUsingHighSpeed())
+		{
+		iPacketSize = KMaxPacketTypeBulkHS;
+		}
+	else
+		{
+		iPacketSize = KMaxPacketTypeBulkFS;
+		}
+	}
+
+
+void CLinkStateNotifier::LinkDown()
+	{
+	iPacketSize = 0;
+	}