> So, what does it look like in GraphEdt? The graph can't circle around > on itself. Does the system create two instances of your device? Creating 2 identical filters for one piece of hardware is improper inside one graph. In KSStudio which is lower level tool the construction of filters is evident. In my opinion this kind of loopback is handled by using topology filter (which I dont have, because Im not planning this variant). regards Konrad ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.de/