98 lines
2.9 KiB
Groff
98 lines
2.9 KiB
Groff
.\"
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.\" Copyright (c) 1999 Seigo Tanimura
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd December 15, 2005
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.Dt SND_GUSC 4
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.Os
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.Sh NAME
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.Nm snd_gusc
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.Nd Gravis UltraSound ISA bridge device driver
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.Sh SYNOPSIS
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To compile this driver into the kernel, place the following lines in your
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kernel configuration file:
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.Bd -ragged -offset indent
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.Cd "device sound"
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.Cd "device snd_gusc"
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.Ed
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.Pp
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Alternatively, to load the driver as a module at boot time, place the
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following line in
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.Xr loader.conf 5 :
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.Bd -literal -offset indent
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snd_gusc_load="YES"
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.Ed
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.Pp
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Non-PnP cards require the following lines in
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.Xr device.hints 5 :
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.Bd -literal -offset indent
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hint.gusc.0.at="isa"
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hint.gusc.0.port="0x220"
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hint.gusc.0.irq="5"
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hint.gusc.0.drq="1"
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hint.gusc.0.flags="0x13"
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.Ed
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.Sh DESCRIPTION
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The
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.Nm
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bridge driver allows the generic audio drivers including
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.Xr sound 4
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to attach to Gravis UltraSound sound cards.
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.Pp
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The value of flags specifies the secondary DMA channel.
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If the secondary
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DMA channel is C, set the flags to (C | 0x10).
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For a sound card without the
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secondary DMA channel, the flags should be set to zero.
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.Sh HARDWARE
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The
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.Nm
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driver supports the following sound cards:
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.Pp
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.Bl -bullet -compact
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.It
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Gravis UltraSound MAX
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.It
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Gravis UltraSound PnP
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.El
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.Sh DIAGNOSTICS
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.Bl -diag
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.It xxx: gus pcm not attached, out of memory
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There are not enough memory to drive the device.
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.El
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.Sh SEE ALSO
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.Xr sound 4
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.Sh HISTORY
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The
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.Nm
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device driver first appeared in
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.Fx 4.0 .
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.Sh AUTHORS
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.An Ville-Pertti Keinonen Aq will@iki.fi
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.An Seigo Tanimura Aq tanimura@r.dl.itc.u-tokyo.ac.jp
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.Sh BUGS
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Recording pcm sound data is not supported yet.
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