11 Dec
2013
11 Dec
'13
1:04 a.m.
On 12/10/2013 02:12 PM, Bob van der Poel wrote:
Figured it out after a few hours :) We'd only
recently plugged her
mouse into the same multiport. If the "telephone" is plugged into a
different port, it works. If the mouse is not plugged into the
multiport, it works.
Yeah, that's one of the hidden pull-your-hair-out gotchas of USB Audio.
I ran into it once where an audio device was on the same hub as a
webcam -- and that didn't work well.
The deal is that the audio device reserves a certain amount of bandwidth
over USB. If it can't get -- it won't even try to work. So if some
other device has reserved the bandwidth you need (which they can), then
there's no room left over for yours.
-gabe