NAME

snd_atiixp — ATI IXP bridge device driver

SYNOPSIS

To compile this driver into the kernel, place the following lines in your kernel configuration file:

device sound
device snd_atiixp

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

snd_atiixp_load="YES"

DESCRIPTION

The snd_atiixp bridge driver allows the generic audio driver, sound(4), to attach to ATI IXP audio devices. This driver supports 16bit playback and recording, and 32bit native playback and recording.

Runtime Configuration

The following sysctl(8) variables are available in addition to those available to all sound(4) devices:

dev.pcm.%d.polling: Experimental polling mode, where the driver operates by querying the device state on each tick using callout(9). Polling is disabled by default. Do not enable it unless you are facing weird interrupt problems or if the device cannot generate interrupts at all.

HARDWARE

The snd_atiixp driver supports the following audio chipsets:

ATI IXP 200
ATI IXP 300
ATI IXP 400

HISTORY

The snd_atiixp device driver first appeared in FreeBSD 6.1.

AUTHORS

This manual page was written by Joel Dahl <joel@FreeBSD.org>.

BUGS

The snd_atiixp driver does not support S/PDIF, but implementing it should be fairly easy if the right hardware is available.

32bit native recording is broken on some hardware.