netbsd man page for hdaudioctl

HDAUDIOCTL(8)						    BSD System Manager's Manual 					     HDAUDIOCTL(8)

NAME
     hdaudioctl -- program to manipulate hdaudio(4) devices.

SYNOPSIS
     hdaudioctl [-f device] command [arguments]

DESCRIPTION
     The hdaudioctl 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 intercon-
			nections 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 <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 controls will be returned to their default values.

BSD
								  October 6, 2009							       BSD