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freebsd-dev/sys/dev/sound/usb
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Hans Petter Selasky 86c9b3f3a6 Add support for multiple playback and recording devices per physical USB audio 
device. This requires some structural refactoring inside the driver, mostly
about converting existing audio channel structures into arrays.

The main audio mixer is provided by the first PCM instance.
The non-first audio instances may only have a software mixer for PCM playback.

Tested by:	Horse Ma <Shichun.Ma@dell.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2020-03-30 16:50:32 +00:00
..
uaudio_pcm.c Add support for multiple playback and recording devices per physical USB audio 2020-03-30 16:50:32 +00:00
uaudio.c Add support for multiple playback and recording devices per physical USB audio 2020-03-30 16:50:32 +00:00
uaudio.h Add support for multiple playback and recording devices per physical USB audio 2020-03-30 16:50:32 +00:00
uaudioreg.h