.\" Copyright (c) 2004 Jorge Mario G. Mazo
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.\" $FreeBSD: head/share/man/man4/snd_ich.4 275990 2014-12-21 09:53:29Z brueffer $
.\"
.Dd January 6, 2009
.Dt SND_ICH 4
.Os
.Sh NAME
.Nm snd_ich
.Nd "Intel ICH AC'97 and compatible bridge device driver"
.Sh SYNOPSIS
To compile this driver into the kernel, place the following lines in your
kernel configuration file:
.Bd -ragged -offset indent
.Cd "device sound"
.Cd "device snd_ich"
.Ed
.Pp
Alternatively, to load the driver as a module at boot time, place the
following line in
.Xr loader.conf 5 :
.Bd -literal -offset indent
snd_ich_load="YES"
.Ed
.Sh DESCRIPTION
The
.Nm
bridge driver allows the generic audio driver
.Xr sound 4
to attach to Intel ICH AC'97 and compatible audio devices.
.Pp
Some later chips, like ICH6/ICH7, depending on wiring can instead implement
newer Intel HD Audio specification, which is supported by
.Xr snd_hda 4
driver.
.Sh HARDWARE
The
.Nm
driver supports the following audio devices:
.Pp
.Bl -bullet -compact
.It
AMD 768
.It
AMD 8111
.It
Intel 443MX
.It
Intel ICH
.It
Intel ICH revision 1
.It
Intel ICH2
.It
Intel ICH3
.It
Intel ICH4
.It
Intel ICH5
.It
Intel ICH6
.It
Intel ICH7
.It
NVIDIA nForce
.It
NVIDIA nForce2
.It
NVIDIA nForce2 400
.It
NVIDIA nForce3
.It
NVIDIA nForce3 250
.It
NVIDIA nForce4
.It
SiS 7012
.El
.Sh SEE ALSO
.Xr snd_hda 4 ,
.Xr sound 4
.Sh HISTORY
The
.Nm
device driver first appeared in
.Fx 4.2 .
.Sh AUTHORS
This manual page was written by
.An Jorge Mario G. Mazo Aq Mt jgutie11@eafit.edu.co .