Date: Sun, 17 Jan 2021 01:04:08 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 252761] multichannel USB audio device reports only 2 channels via SNDCTL_AUDIOINFO Message-ID: <bug-252761-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=252761 Bug ID: 252761 Summary: multichannel USB audio device reports only 2 channels via SNDCTL_AUDIOINFO Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: emaste@freebsd.org After attaching an 18-in / 18-out device: ugen0.7: <BEHRINGER X18/XR18> at usbus0 uaudio0 on uhub0 uaudio0: <X18/XR18> on usbus0 uaudio0: Play[0]: 48000 Hz, 18 ch, 32-bit S-LE PCM format, 2x8ms buffer. uaudio0: Record[0]: 48000 Hz, 18 ch, 32-bit S-LE PCM format, 2x8ms buffer. uaudio0: MIDI sequencer. pcm2: <USB audio> on uaudio0 uaudio0: No HID volume keys found. SNDCTL_AUDIOINFO reports min_channels = 2, max_channels = 2 pcm/dsp.c::dsp_oss_audioinfo() only reports 1 or 2 for min/max it appears: for (i = 0; caps->fmtlist[i]; i++) { fmts |= caps->fmtlist[i]; if (AFMT_CHANNEL(caps->fmtlist[i]) > 1) { minch = (minch == 0) ? 2 : minch; maxch = 2; } else { minch = 1; maxch = (maxch == 0) ? 1 : maxch; } } -- You are receiving this mail because: You are the assignee for the bug.home | help
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