[Bug 272718] Blue Yeti microphone does not work

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=272718

--- Comment #7 from mmatalka@gmail.com ---
Actually, I think this feeder error was me being confused, because it says
pcm1, but this device is pcm2!  Sorry for the confusion and misdirection.  I've
been trying a bunch of things and confused myself.

I disabled virtual_oss and specified /dev/dsp2 for audacity to record from and
audacity immediately hangs.  The output of /dev/sndstat during this is:

pcm2: <USB audio> at ? kld snd_uaudio (1p:1v/1r:1v)
        snddev flags=0x2e2<AUTOVCHAN,BUSY,MPSAFE,REGISTERED,VPC>
        [pcm2:play:dsp2.p0]: spd 48000, fmt 0x00200010, flags 0x00002100,
0x00000004
        interrupts 0, underruns 0, feed 0, ready 0
[b:3072/1536/2|bs:4096/2048/2]
        channel flags=0x2100<BUSY,HAS_VCHAN>
        {userland} -> feeder_mixer(0x00200010) -> {hardware}
        pcm2:play:dsp2.p0[pcm2:virtual:dsp2.vp0]: spd 384000/48000, fmt
0x00100010/0x00200010, flags 0x10000000, 0x00000069
        interrupts 0, underruns 0, feed 0, ready 0 [b:0/0/0|bs:32768/4096/8]
        channel flags=0x10000000<VIRTUAL>
        {userland} -> feeder_root(0x00100010) -> feeder_rate(0x00100010 q:1
384000 -> 48000) -> feeder_matrix(1.0 -> 2.0) -> feeder_volume(0x00200010) ->
{hardware}
        [pcm2:record:dsp2.r0]: spd 48000, fmt 0x00200010, flags 0x00002108,
0x00000005
        interrupts 68187, overruns 0, feed 68187, hfree 3072, sfree 4096
[b:3072/1536/2|bs:4096/2048/2]
        channel flags=0x2108<TRIGGERED,BUSY,HAS_VCHAN>
        {hardware} -> feeder_root(0x00200010) -> feeder_mixer(0x00200010) ->
{userland}
        pcm2:record:dsp2.r0[pcm2:virtual:dsp2.vr0]: spd 44100/48000, fmt
0x00200010, flags 0x10001108, 0x00000029, pid 3231 (audacity)
        interrupts 0, overruns 0, feed 0, hfree 0, sfree 32768
[b:0/0/0|bs:32768/8192/4]
        channel flags=0x10001108<TRIGGERED,BUSY,HAS_SIZE,VIRTUAL>
        {hardware} -> feeder_root(0x00200010) -> feeder_rate(0x00200010 q:1
48000 -> 44100) -> feeder_volume(0x00200010) -> {userland}

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