[Bug 252761] multichannel USB audio device reports only 2 channels via SNDCTL_AUDIOINFO

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From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 13 Dec 2021 08:43:11 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=252761

--- Comment #8 from Hans Petter Selasky <hselasky@FreeBSD.org> ---
When there are more than 8 channels, vchannels are disabled and bitperfect is
enabled. Then you have to use virtual_oss if your application does not support
bitperfect.

The vchannel limit of 8 channels was chosen because surround use 8 channels.

--HPS

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