> the other problem with both volume and audioctl will come with multiple
> streams. in1 and out1 might work, but it starts to look ugly. usbaudio
> appears to ignore multiple inputs or outputs.

i'm not entirely sure what you mean by "streams" in this context. multiple inputs or outputs? if so, my first pass would be do something like what #l does: #l0, #l1, &c. Alternately, let any (theoretical future) driver for such a thing implement /mnt/fancydriver/0/audio &c, and bind as needed.

> (anybody have network over audio?)


that'd be fun. ppp over audio coupling? :-)