1.\" Copyright (c) 2005 Joel Dahl 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 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. 12.\" 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 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD: src/share/man/man4/snd_atiixp.4,v 1.4 2006/11/29 17:07:02 joel Exp $ 26.\" $DragonFly: src/share/man/man4/snd_atiixp.4,v 1.2 2007/02/25 19:12:28 swildner Exp $ 27.\" 28.Dd November 29, 2006 29.Dt SND_ATIIXP 4 30.Os 31.Sh NAME 32.Nm snd_atiixp 33.Nd "ATI IXP bridge device driver" 34.Sh SYNOPSIS 35To compile this driver into the kernel, place the following lines in your 36kernel configuration file: 37.Bd -ragged -offset indent 38.Cd "device pcm" 39.Cd "device snd_atiixp" 40.Ed 41.Pp 42Alternatively, to load the driver as a module at boot time, place the 43following line in 44.Xr loader.conf 5 : 45.Bd -literal -offset indent 46snd_atiixp_load="YES" 47.Ed 48.Sh DESCRIPTION 49The 50.Nm 51bridge driver allows the generic audio driver, 52.Xr sound 4 , 53to attach to ATI IXP audio devices. 54This driver supports 16bit playback and recording, and 32bit native playback 55and recording. 56.Ss Runtime Configuration 57The following 58.Xr sysctl 8 59variables are available in addition to those available to all 60.Xr sound 4 61devices: 62.Bl -tag -width ".Va dev.pcm.%d.polling" -offset indent 63.It Va dev.pcm.%d.polling 64Experimental polling mode, where the driver operates by querying the device 65state on each tick using 66.Xr callout 9 . 67Polling is disabled by default. 68Do not enable it unless you are facing weird interrupt problems or if the 69device cannot generate interrupts at all. 70.El 71.Sh HARDWARE 72The 73.Nm 74driver supports the following audio chipsets: 75.Pp 76.Bl -bullet -compact 77.It 78ATI IXP 200 79.It 80ATI IXP 300 81.It 82ATI IXP 400 83.El 84.Sh SEE ALSO 85.Xr sound 4 86.Sh HISTORY 87The 88.Nm 89device driver first appeared in 90.Fx 6.1 . 91.Sh AUTHORS 92This manual page was written by 93.An Joel Dahl Aq joel@FreeBSD.org . 94.Sh BUGS 95The 96.Nm 97driver 98does not support S/PDIF, but implementing it should be fairly easy if the 99right hardware is available. 100.Pp 10132bit native recording is broken on some hardware. 102