HDAUDIOCTL(8) BSD System Manager's Manual HDAUDIOCTL(8)NAMEhdaudioctl — program to manipulate hdaudio(4) devices.
SYNOPSIShdaudioctl [-f device] command [arguments]
DESCRIPTION
The hdaudioctl command can be used to inspect and reconfigure High Defi‐
nition Audio devices and their child codecs.
The mandatory command argument specifies the action to take. Valid com‐
mands 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 Defini‐
tion Audio specification will be used.
graph codecid nid Output a DOT file suitable processing by graphviz.
The resulting image will graphically show the struc‐
ture and interconnections of the widgets that form the
chosen hdafg(4) codec.
FILES
/dev/hdaudioX control devices
SEE ALSOaudio(4), hdaudio(4), pkgsrc/graphics/graphviz
HISTORY
The hdaudioctl command first appeared in NetBSD 5.1.
AUTHORShdaudioctl is based on two separate programs written by Jared McNeill
⟨jmcneill@NetBSD.org⟩ under contract by
Precedence Technologies Ltd ⟨http://www.precedence.co.uk/⟩. 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 con‐
trols will be returned to their default values.
BSD October 6, 2009 BSD