1 .\" Copyright (c) 2005 Joel Dahl
2 .\" All rights reserved.
4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
7 .\" 1. Redistributions of source code must retain the above copyright
8 .\" notice, this list of conditions and the following disclaimer.
9 .\" 2. Redistributions in binary form must reproduce the above copyright
10 .\" notice, this list of conditions and the following disclaimer in the
11 .\" documentation and/or other materials provided with the distribution.
13 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 .Nd "ATI IXP bridge device driver"
34 To compile this driver into the kernel, place the following lines in your
35 kernel configuration file:
36 .Bd -ragged -offset indent
38 .Cd "device snd_atiixp"
41 Alternatively, to load the driver as a module at boot time, place the
44 .Bd -literal -offset indent
50 bridge driver allows the generic audio driver,
52 to attach to ATI IXP audio devices.
53 This driver supports 16bit playback and recording, and 32bit native playback
55 .Ss Runtime Configuration
58 variables are available in addition to those available to all
61 .Bl -tag -width ".Va dev.pcm.%d.polling" -offset indent
62 .It Va dev.pcm.%d.polling
63 Experimental polling mode, where the driver operates by querying the device
64 state on each tick using
66 Polling is disabled by default.
67 Do not enable it unless you are facing weird interrupt problems or if the
68 device cannot generate interrupts at all.
73 driver supports the following audio chipsets:
88 device driver first appeared in
91 This manual page was written by
92 .An Joel Dahl Aq joel@FreeBSD.org .
97 does not support S/PDIF, but implementing it should be fairly easy if the
98 right hardware is available.
100 32bit native recording is broken on some hardware.