tree 734ca96058b38f9a699a50d00490b7d366b2f8f4
parent 1905e7b0977b64d39dcb920bba97c80f0f06b377
author Ryan C. Gordon <icculus@icculus.org> 1476127758 -0400
committer Ryan C. Gordon <icculus@icculus.org> 1476127758 -0400

alsa: more tapdancing to enumerate physical hardware devices.

Apparently some systems see "hw:", some see "default:" and some see
"sysdefault:" (and maybe others!). My workstation sees both "hw:" and
"sysdefault:" ...

Try to find a prefix we like and prioritize the prefixes we (think) we want
most. If everything else fails, if there's a "default" (not a prefix) device
name, list that by itself so the user gets _something_ here.

If we can't find a prefix we like _and_ there's no "default" device, report
no hardware found at all.