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SND_VIA8233(4)		 BSD Kernel Interfaces Manual		SND_VIA8233(4)

NAME
     snd_via8233 -- VIA	Technologies VT8233 bridge device driver

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

	   device sound
	   device snd_via8233

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

	   snd_via8233_load="YES"

DESCRIPTION
     The snd_via8233 bridge driver allows the generic audio driver, sound(4),
     to	attach to the VIA VT8233 audio devices.	 These audio chipsets are in-
     tegrated in the southbridge on many VIA based motherboards.

   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 op-
			       erates by querying the device state on each
			       tick using callout(9).  Polling is disabled by
			       default.	 Do not	enable it unless you are fac-
			       ing weird interrupt problems or if the device
			       cannot generate interrupts at all.

HARDWARE
     The snd_via8233 driver supports the following audio chipsets:

     +o	 VIA VT8233
     +o	 VIA VT8233A
     +o	 VIA VT8233C
     +o	 VIA VT8235
     +o	 VIA VT8237
     +o	 VIA VT8251

SEE ALSO
     sound(4)

HISTORY
     The snd_via8233 device driver first appeared in FreeBSD 4.7.

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

BUGS
     The snd_via8233 driver does not support S/PDIF.  There is partial support
     in	the code, so implementing it should be fairly easy if the right	hard-
     ware is available.

BSD			       November	29, 2006			   BSD

NAME | SYNOPSIS | DESCRIPTION | HARDWARE | SEE ALSO | HISTORY | AUTHORS | BUGS

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