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|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.programs.light;
in
{
options = {
programs.light = {
enable = mkOption {
default = false;
type = types.bool;
description = ''
Whether to install Light backlight control command
and udev rules granting access to members of the "video" group.
'';
};
brightnessKeys = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Whether to enable brightness control with keyboard keys.
This is mainly useful for minimalistic (desktop) environments. You
may want to leave this disabled if you run a feature-rich desktop
environment such as KDE, GNOME or Xfce as those handle the
brightness keys themselves. However, enabling brightness control
with this setting makes the control independent of X, so the keys
work in non-graphical ttys, so you might want to consider using this
instead of the default offered by the desktop environment.
Enabling this will turn on {option}`services.actkbd`.
'';
};
step = mkOption {
type = types.int;
default = 10;
description = ''
The percentage value by which to increase/decrease brightness.
'';
};
};
};
};
config = mkIf cfg.enable {
environment.systemPackages = [ pkgs.light ];
services.udev.packages = [ pkgs.light ];
services.actkbd = mkIf cfg.brightnessKeys.enable {
enable = true;
bindings = let
light = "${pkgs.light}/bin/light";
step = toString cfg.brightnessKeys.step;
in [
{
keys = [ 224 ];
events = [ "key" ];
# Use minimum brightness 0.1 so the display won't go totally black.
command = "${light} -N 0.1 && ${light} -U ${step}";
}
{
keys = [ 225 ];
events = [ "key" ];
command = "${light} -A ${step}";
}
];
};
};
}
|
