1 .\" $NetBSD: hdaudioctl.8,v 1.1 2009/10/11 08:57:54 sborrill Exp $
3 .\" Copyright (c) 2009 Precedence Technologies Ltd <support@precedence.co.uk>
4 .\" All rights reserved.
6 .\" This code is derived from software contributed to The NetBSD Foundation
7 .\" by Precedence Technologies Ltd
9 .\" Redistribution and use in source and binary forms, with or without
10 .\" modification, are permitted provided that the following conditions
12 .\" 1. Redistributions of source code must retain the above copyright
13 .\" notice, this list of conditions and the following disclaimer.
14 .\" 2. Redistributions in binary form must reproduce the above copyright
15 .\" notice, this list of conditions and the following disclaimer in the
16 .\" documentation and/or other materials provided with the distribution.
18 .\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19 .\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20 .\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 .\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22 .\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 .\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 .\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 .\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 .\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 .\" POSSIBILITY OF SUCH DAMAGE.
35 .Nd program to manipulate
46 command can be used to inspect and reconfigure High Definition Audio devices
47 and their child codecs.
51 argument specifies the action to take.
53 .Bl -tag -width XgetXcodecidXnidX
55 For each child codec of the chosen
57 device, display the nid, vendor, product, subsystem and device IDs.
58 .It get Ar codecid Ar nid
59 Retrieve and display the current codec configuration as a
62 .It set Ar codecid Ar nid Op Ar plist
65 codec and then re-attach with its widgets explicitly configured according to
67 If no plist is given, the in-built widget parsing rules based on the High
68 Definition Audio specification will be used.
69 .It graph Ar codecid Ar nid
70 Output a DOT file suitable processing by graphviz.
71 The resulting image will graphically show the structure and interconnections
72 of the widgets that form the chosen
77 .Bl -tag -width /dev/hdaudioX -compact
84 .Pa pkgsrc/graphics/graphviz
88 command first appeared in
92 is based on two separate programs written by
93 .An Jared McNeill Aq jmcneill@NetBSD.org
95 .An Precedence Technologies Ltd Aq http://www.precedence.co.uk/ .
96 Integration into one program and writing this manual page was done by
97 .An Stephen Borrill Aq sborrill@NetBSD.org .
99 When a plist is loaded and the
101 codec reattaches, all mixer controls will be returned to their default values.