hdaudioctl(8) - NetBSD Manual Pages

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HDAUDIOCTL(8)           NetBSD 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 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.

     show codecid nid   Retrieve and display the current codec configuration
                        in human-readable form.

     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 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:
           http://www.precedence.co.uk/ 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 con-
     trols will be returned to their default values.

NetBSD 9.2                      April 12, 2021                      NetBSD 9.2