NAME
hdaudioctl —
program to manipulate
hdaudio(4) devices
SYNOPSIS
hdaudioctl |
[-f device] command [arguments] |
DESCRIPTION
Thehdaudioctl command can be used to inspect and
reconfigure High Definition Audio devices and their child codecs.
The mandatory command argument specifies the action to take. Valid commands are:
- list
- For each child codec of the chosen hdaudio(4) device, display the nid, vendor, product, subsystem and device IDs.
- get codecid nid
- Retrieve and display the current codec configuration as a proplib(3) XML plist.
- set codecid nid [plist]
- Detach the specified hdafg(4) codec and then re-attach with its widgets explicitly configured according to the specified plist. If no plist is given, the in-built widget parsing rules based on the High Definition Audio specification will be used.
- graph codecid nid
- Output a DOT file suitable processing by graphviz. The resulting image will graphically show the structure and interconnections of the widgets that form the chosen hdafg(4) codec.
FILES
- /dev/hdaudioX
- control devices
SEE ALSO
audio(4), hdaudio(4), pkgsrc/graphics/graphviz
HISTORY
The hdaudioctl command first appeared in
NetBSD 5.1.
AUTHORS
hdaudioctl is based on two separate
programs written by Jared McNeill
<jmcneill@NetBSD.org>
under contract by
Precedence Technologies
Ltd. Integration into one program and writing this manual page was done
by
Stephen Borrill
<sborrill@NetBSD.org>.
CAVEATS
When a plist is loaded and the hdafg(4) codec reattaches, all mixer controls will be returned to their default values.