RNotifier notifier;
    User::LeaveIfError( notifier.Connect() );
 
    TBTDeviceSelectionParamsPckg selectionFilter;
TBTDeviceResponseParamsPckg aResponse;
    TRequestStatus status;

selectionFilter().SetUUID(KSerialPortUUID);

    notifier.StartNotifierAndGetResponse(
        status,
        KDeviceSelectionNotifierUid,
        selectionFilter,
        aResponse
    );

    User::WaitForRequest( status );
    notifier.Close();