diff options
| author | Christos Margiolis <christos@FreeBSD.org> | 2026-04-17 15:47:44 +0000 |
|---|---|---|
| committer | Christos Margiolis <christos@FreeBSD.org> | 2026-05-27 15:27:11 +0000 |
| commit | 98a62ccab6ac30d13c2dbcdc7468af8f87df4ec9 (patch) | |
| tree | 3181315d2f114876911c1775eacb282ccd69fb47 | |
| parent | 3a3cb16ad4181700d787e6b24bedafe85c791901 (diff) | |
pcm.4: Document dev.pcm.%d.eq*
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Pull Request: https://ron-dev.freebsd.org/FreeBSD/src/pulls/15
| -rw-r--r-- | share/man/man4/pcm.4 | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/share/man/man4/pcm.4 b/share/man/man4/pcm.4 index 3f228d703b1a..b0f944a0d443 100644 --- a/share/man/man4/pcm.4 +++ b/share/man/man4/pcm.4 @@ -430,6 +430,17 @@ the definitive format/rate target. The recommended way to use bitperfect mode is to disable VCHANs and enable this sysctl. Default is disabled. +.It Va dev.pcm.%d.eq +Set to 1 or 0 to enable (1) or disable (0) the equalizer. +Default is disabled. +When enabled, the mixer bass and treble controls can be used, as well as the +.Va dev.pcm.%d.eq_preamp +tunable. +.It Va dev.pcm.%d.eq_preamp +Equalizer preamp (in dB). +.Va dev.pcm.%d.eq +has to be enabled, in order for this tunable to take effect. +Read the tunable's description to see the available range of values. .It Va dev.pcm.%d.[play|rec].vchans Enable (1) or disable (0) VCHANs. Default is enabled. |