Commit f7548ccc authored by Hugo Cartigny (BlueskyFR)'s avatar Hugo Cartigny (BlueskyFR)
Browse files

nixos/light: add minBrightness option 

Make the minimum brightness level configurable instead of using an arbitrary value of 0.1.
parent 6313551c

nixos/modules/programs/light.nix

+12 −2
Original line number Diff line number Diff line
@@ -49,6 +49,15 @@ in 
          '';

        };



        minBrightness = lib.mkOption {

          type = lib.types.numbers.between 0 100;

          default = 0.1;

          description = ''

            The minimum authorized brightness value, e.g. to avoid the

            display going dark.

          '';

        };



      };



    };
@@ -63,13 +72,14 @@ in 
        let

          light = "${pkgs.light}/bin/light";

          step = builtins.toString cfg.brightnessKeys.step;

          minBrightness = builtins.toString cfg.brightnessKeys.minBrightness;

        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}";

            # -N is used to ensure that value >= minBrightness

            command = "${light} -N ${minBrightness} && ${light} -U ${step}";

          }

          {

            keys = [ 225 ];