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Dd April 12, 2021
Dt HDAUDIOCTL 8
Os
Sh NAME
Nm hdaudioctl
Nd program to manipulate
Xr hdaudio 4
devices
Sh SYNOPSIS
Nm
Op Ar -f device
Ar command
Op Ar arguments
Sh DESCRIPTION
The
Nm
command can be used to inspect and reconfigure High Definition Audio devices
and their child codecs.
Pp
The mandatory
Ar command
argument specifies the action to take.
Valid commands are:
Bl -tag -width XgetXcodecidXnidX
It list
For each child codec of the chosen
Xr hdaudio 4
device, display the nid, vendor, product, subsystem and device IDs.
It show Ar codecid Ar nid
Retrieve and display the current codec configuration in human-readable form.
It get Ar codecid Ar nid
Retrieve and display the current codec configuration as a
Xr proplib 3
XML plist.
It set Ar codecid Ar nid Op Ar plist
Detach the specified
Xr 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.
It graph Ar codecid Ar 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
Xr hdafg 4
codec.
El
Sh FILES
Bl -tag -width /dev/hdaudioX -compact
It Pa /dev/hdaudioX
control devices
El
Sh SEE ALSO
Xr audio 4 ,
Xr hdaudio 4 ,
Pa pkgsrc/graphics/graphviz
Sh HISTORY
The
Nm
command first appeared in
Nx 5.1 .
Sh AUTHORS
Nm
is based on two separate programs written by
An Jared McNeill Aq Mt [email protected]
under contract by
Lk http://www.precedence.co.uk/ Precedence Technologies Ltd .
Integration into one program and writing this manual page was done by
An Stephen Borrill Aq Mt [email protected] .
Sh CAVEATS
When a plist is loaded and the
Xr hdafg 4
codec reattaches, all mixer controls will be returned to their default values.

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