1 .\" Copyright (c) 2004 Atte Peltomaki
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
25 .\" $FreeBSD: src/share/man/man4/snd_es137x.4,v 1.9 2006/11/29 17:07:02 joel Exp $
26 .\" $DragonFly: src/share/man/man4/snd_es137x.4,v 1.1 2007/01/04 21:47:00 corecode Exp $
33 .Nd "Ensoniq AudioPCI ES137x bridge device driver"
35 To compile this driver into the kernel, place the following lines in your
36 kernel configuration file:
37 .Bd -ragged -offset indent
39 .Cd "device snd_es137x"
42 Alternatively, to load the driver as a module at boot time, place the
45 .Bd -literal -offset indent
51 bridge driver allows the generic audio driver
53 to attach to the Ensoniq 137x audio cards.
54 .Ss Runtime Configuration
57 variables are available in addition to those available to all
60 .Bl -tag -width ".Va hw.snd.pcm%d.latency_timer" -offset indent
61 .It Va hw.snd.pcm%d.latency_timer
62 Controls the PCI latency timer setting.
63 Increasing this value will solve most popping and crackling issues
64 (especially on VIA motherboards).
65 .It Va hw.snd.pcm%d.spdif_enabled
66 Enables S/PDIF output on the primary playback channel.
69 variable is available only if the device is known to support S/PDIF output.
70 .It Va dev.pcm.%d.polling
71 Experimental polling mode, where the driver operates by querying the device
72 state on each tick using
74 Polling is disabled by default.
75 Do not enable it unless you are facing weird interrupt problems or if the
76 device cannot generate interrupts at all.
81 driver supports the following sound cards:
93 Creative SB AudioPCI CT4730
95 Ensoniq AudioPCI ES1370
97 Ensoniq AudioPCI ES1371-A
99 Ensoniq AudioPCI ES1371-B
101 Ensoniq AudioPCI ES1373-A
103 Ensoniq AudioPCI ES1373-B
105 Ensoniq AudioPCI ES1373-8
112 device driver first appeared in
115 .An "Russell Cattelan" Aq cattelan@thebarn.com
116 .An "Cameron Grant" Aq cg@FreeBSD.org
117 .An "Joachim Kuebart"
118 .An "Jonathan Noack" Aq noackjr@alumni.rice.edu