snd_atiixp (4)

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Copyright (c) 2005 Joel Dahl
All rights reserved.

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(The comments found at the beginning of the groff file "man4/snd_atiixp.4freebsd".)

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.conf5:

snd_atiixp_load="YES"

DESCRIPTION

The ifconfig 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 ifconfig driver supports the following audio chipsets:

• ATI IXP 200
• ATI IXP 300
• ATI IXP 400

SEE ALSO

sound(4)

HISTORY

The ifconfig device driver first appeared in Fx 6.1 .

AUTHORS

This manual page was written by An Joel Dahl Aq joel@FreeBSD.org .

BUGS

The ifconfig 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.