https://bugs.winehq.org/show_bug.cgi?id=52592
--- Comment #5 from Rafał Mużyło galtgendo@o2.pl --- A longer look at the sources seem to confirm that in pretty much all cases (in, out and mixer) the value checked against is the mm_device index. It's almost certainly true for all uDeviceID and req_device checks. Only piece contradicting this is reroute_mapper_device, but that's pretty much it.