non-"isdn bullshit" audio devices OpenBSD currently (and most
likely ever will) supports. sndio(7) doesn't support audioamd(4)
(which is an isdn device), but the audio(4) backend here didn't
support that device either.
tested on a 195 MHz r10k O2 extracting install tarballs +
'cvs co ports' + repeatedly compiling tracker in a loop +
'find /', all running simultaneously over the built-in mec0 NIC,
a zaurus with hw.setperf set to 0 + 'find /' running on the
console + tracker and an audio device monitoring program run
from an ssh session through a wi(4) pcmcia card, a 233MHz
Toshiba Tecra 8000 with wss(4), and various other machines.
