NAME

volume − volume control for an infrared interface

SYNOPSIS

include "volume.m";
vctl := load Volumectl Volumectl->PATH;
 volumectl: fn(ctxt: ref Draw->Context, ch: chan of int,
device: string);

DESCRIPTION

­Volumectl should be spawned as a separate process from any process that desires volume control via an infrared interface.  ­Ctxt provides ­volumectl with access to the display, on which it displays a slider widget.  The slider automatically disappears after several seconds of inactivity.  ­Volumectl receives input from the infrared controller on channel ch. The values recognized are:

­VolUP increase volume

­VolDN decrease volume

­Enter exit

­Device is a string used as a prefix to commands to the device; for example "audio out" for audio(3).

FILES

­/dev/volume

SOURCE

­/appl/lib/volume.b

SEE ALSO

ir(2), prefab-intro(2)

Plan 9  —  June 07, 2000