diff -r d57b86b1867a -r dc268b18d709 kerneltest/e32test/usbho/t_usbdi/src/BasicWatcher.cpp
--- a/kerneltest/e32test/usbho/t_usbdi/src/BasicWatcher.cpp	Mon Sep 13 15:16:07 2010 +0100
+++ b/kerneltest/e32test/usbho/t_usbdi/src/BasicWatcher.cpp	Wed Sep 22 10:53:45 2010 +0100
@@ -86,5 +86,47 @@
 	return KErrNone;
 	}
 
+
+CInterfaceWatcher::CInterfaceWatcher(RUsbInterface& aInterface,const TCallBack& aCallBack)
+:	CActive(EPriorityUserInput),
+	iUsbInterface(aInterface),
+	iResumeCallBack(aCallBack),
+	iCompletionCode(KErrNone)
+	{
+	CActiveScheduler::Add(this);
+	}
+
+CInterfaceWatcher::~CInterfaceWatcher()
+	{
+	Cancel();
+	}
+
+void CInterfaceWatcher::SuspendAndWatch()
+	{
+	iUsbInterface.PermitSuspendAndWaitForResume(iStatus);
+	SetActive();
+	}
+
+TInt CInterfaceWatcher::CompletionCode() const
+	{
+	return iCompletionCode;
+	}
+
+void CInterfaceWatcher::DoCancel()
+	{
+	iUsbInterface.CancelPermitSuspend();
+	}
+
+void CInterfaceWatcher::RunL()
+	{
+	iCompletionCode = iStatus.Int();
+	User::LeaveIfError(iResumeCallBack.CallBack());
 	}
 	
+TInt CInterfaceWatcher::RunError()
+	{
+	return KErrNone;
+	}		
+									
+	}
+