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SND_GUSC(4)		     Kernel Interfaces Manual		     SND_GUSC(4)

NAME
     snd_gusc -- Gravis UltraSound ISA bridge device driver

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

	   device sound
	   device snd_gusc

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

	   snd_gusc_load="YES"

     Non-PnP cards require the following lines in device.hints(5):

	   hint.gusc.0.at="isa"
	   hint.gusc.0.port="0x220"
	   hint.gusc.0.irq="5"
	   hint.gusc.0.drq="1"
	   hint.gusc.0.flags="0x13"

DESCRIPTION
     The  snd_gusc bridge driver allows the generic audio driver sound(4) to at-
     tach to Gravis UltraSound sound cards.

     The value of flags specifies the secondary DMA channel.  If  the  secondary
     DMA  channel  is  C, set the flags to (C | 0x10).	For a sound card without
     the secondary DMA channel, the flags should be set to zero.

HARDWARE
     The snd_gusc driver supports the following sound cards:

     *	 Gravis UltraSound MAX
     *	 Gravis UltraSound PnP

DIAGNOSTICS
     xxx: gus pcm not attached, out of memory  There are not  enough  memory  to
     drive the device.

SEE ALSO
     sound(4)

HISTORY
     The snd_gusc device driver first appeared in FreeBSD 4.0.

AUTHORS
     Ville-Pertti Keinonen <will@iki.fi>
     Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp>

BUGS
     Recording pcm sound data is not supported yet.

FreeBSD 6.3			December 15, 2005		     SND_GUSC(4)
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