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 attach 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.