diff options
| -rw-r--r-- | share/man/man4/snd_hda.4 | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/share/man/man4/snd_hda.4 b/share/man/man4/snd_hda.4 index 0fedf1e..2939ccc 100644 --- a/share/man/man4/snd_hda.4 +++ b/share/man/man4/snd_hda.4 @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd December 17, 2006 +.Dd January 17, 2007 .Dt SND_HDA 4 .Os .Sh NAME @@ -73,6 +73,31 @@ The HDA specification defines the register-level interface, physical link characteristics, codec programming models, and codec architectural components. This specification is intended for both device driver developers and hardware component designers. +.Ss Boot-time Configuration +The following variables are available at boot-time through the +.Xr device.hints 5 +file: +.Bl -tag -width ".Va hint.pcm.%d.config" -offset indent +.It Va hint.pcm.%d.config +Configures a range of possible options. +Possible values are: +.Dq Li gpio0 , +.Dq Li gpio1 , +.Dq Li gpio2 , +.Dq Li gpioflush , +.Dq Li eapdinv , +.Dq Li fixedrate , +.Dq Li forcestereo , +.Dq Li softpcmvol , +and +.Dq Li vref . +An option prefixed with +.Dq Li no , +such as +.Dq Li nofixedrate +will do the opposite and takes precedence. +Options can be separated by whitespace and commas. +.El .Ss Runtime Configuration The following .Xr sysctl 8 @@ -124,7 +149,7 @@ SiS 966 VIA VT8251/8237A .El .Pp -Generic Audio chipsets compatible with the Intel HDA specification should work, +Generic audio chipsets compatible with the Intel HDA specification should work, but have not been verified yet. The following codecs have been verified to work: .Pp @@ -166,7 +191,9 @@ Sigmatel STAC9227 .El .Sh SEE ALSO .Xr sound 4 , -.Xr loader.conf 5 +.Xr device.hints 5 , +.Xr loader.conf 5 , +.Xr sysctl 8 .Sh HISTORY The .Nm |
