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

SEE ALSO

     sound(4)

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.