https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=272116
Bug ID: 272116
Summary: USB audio devices are missing device name descriptions
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: misc
Assignee: [email protected]
Reporter: [email protected]
For example, the audio device corresponding to the Logitech webcam is logged
as:
> Jun 11 17:06:48 yv kernel: pcm7: <USB audio> on uaudio0
sysctl describes it the same way:
$ sysctl -a | grep pcm.7
dev.pcm.7.feedback_rate: 0
dev.pcm.7.mixer.mute_1.desc:
dev.pcm.7.mixer.mute_1.max: 1
dev.pcm.7.mixer.mute_1.min: 0
dev.pcm.7.mixer.mute_1.val: 0
dev.pcm.7.mixer.vol_0.desc:
dev.pcm.7.mixer.vol_0.max: 12800
dev.pcm.7.mixer.vol_0.min: 5120
dev.pcm.7.mixer.vol_0.val: 7040
dev.pcm.7.mode: 5
dev.pcm.7.bitperfect: 0
dev.pcm.7.buffersize: 0
dev.pcm.7.rec.vchanformat: s16le:2.0
dev.pcm.7.rec.vchanrate: 32000
dev.pcm.7.rec.vchanmode: fixed
dev.pcm.7.rec.vchans: 3
dev.pcm.7.hwvol_mixer: vol
dev.pcm.7.hwvol_step: 5
dev.pcm.7.%parent: uaudio0
dev.pcm.7.%pnpinfo:
dev.pcm.7.%location:
dev.pcm.7.%driver: pcm
dev.pcm.7.%desc: USB audio
As a result, application, like OBS Studio, also always show 'USB audio' as a
device name, which can be confusing when multiple USB audio devices are in use.
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