diff options
| author | des <des@FreeBSD.org> | 2002-02-24 00:49:43 +0000 |
|---|---|---|
| committer | des <des@FreeBSD.org> | 2002-02-24 00:49:43 +0000 |
| commit | 01635cd066f3bfcd2be4a2db737e728ab71c4ce6 (patch) | |
| tree | b886cb4b0e543fbe2b1cf7d822b4660bb9d26edc /sys/dev/sound/pcm/channel.c | |
| parent | 2ffffff20157730e12764729880e645f596c766d (diff) | |
| download | FreeBSD-src-01635cd066f3bfcd2be4a2db737e728ab71c4ce6.zip FreeBSD-src-01635cd066f3bfcd2be4a2db737e728ab71c4ce6.tar.gz | |
Add a sysctl, sysctl hw.snd.report_soft_formats, that controls whether the
AIOGCAP ioctl reports software-emulated formats. It defaults to on. People
who use performance-sensitive audio software and do not want it to pick a
software-emulated audio format instead of one supported by their hardware
should turn it off.
This unbreaks isdnphone(1) on systems with PCM-only sound cards.
Approved by: cg
Diffstat (limited to 'sys/dev/sound/pcm/channel.c')
| -rw-r--r-- | sys/dev/sound/pcm/channel.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sys/dev/sound/pcm/channel.c b/sys/dev/sound/pcm/channel.c index 9a5b6d3..3d36e10 100644 --- a/sys/dev/sound/pcm/channel.c +++ b/sys/dev/sound/pcm/channel.c @@ -60,7 +60,10 @@ sysctl_hw_snd_targetirqrate(SYSCTL_HANDLER_ARGS) return err; } SYSCTL_PROC(_hw_snd, OID_AUTO, targetirqrate, CTLTYPE_INT | CTLFLAG_RW, - 0, sizeof(int), sysctl_hw_snd_targetirqrate, "I", ""); + 0, sizeof(int), sysctl_hw_snd_targetirqrate, "I", ""); +static int report_soft_formats = 1; +SYSCTL_INT(_hw_snd, OID_AUTO, report_soft_formats, CTLFLAG_RW, + &report_soft_formats, 1, "report software-emulated formats"); static int chn_buildfeeder(struct pcm_channel *c); @@ -1023,6 +1026,11 @@ chn_getformats(struct pcm_channel *c) for (i = 0; fmtlist[i]; i++) fmts |= fmtlist[i]; + /* report software-supported formats */ + if (report_soft_formats) + fmts |= AFMT_MU_LAW|AFMT_A_LAW|AFMT_U16_LE|AFMT_U16_BE| + AFMT_S16_LE|AFMT_S16_BE|AFMT_U8|AFMT_S8; + return fmts; } |
