Merge pull request #69398 from Evils-Devils/fancontrol

nixos/fancontrol: init

nixos/modules/module-list.nix

@@ -328,6 +328,7 @@
   ./services/hardware/bluetooth.nix
   ./services/hardware/bolt.nix
   ./services/hardware/brltty.nix
+  ./services/hardware/fancontrol.nix
   ./services/hardware/freefall.nix
   ./services/hardware/fwupd.nix
   ./services/hardware/illum.nix

nixos/modules/services/hardware/fancontrol.nix

@@ -0,0 +1,46 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.hardware.fancontrol;
+  configFile = pkgs.writeText "fan.conf" cfg.config;
+
+in {
+
+  options.hardware.fancontrol = {
+    enable = mkEnableOption "fancontrol (requires fancontrol.config)";
+
+    config = mkOption {
+      type = types.lines;
+      default = null;
+      example = ''
+        # Configuration file generated by pwmconfig
+        INTERVAL=1
+        DEVPATH=hwmon0=devices/platform/nct6775.656 hwmon1=devices/pci0000:00/0000:00:18.3
+        DEVNAME=hwmon0=nct6779 hwmon1=k10temp
+        FCTEMPS=hwmon0/pwm2=hwmon1/temp1_input
+        FCFANS=hwmon0/pwm2=hwmon0/fan2_input
+        MINTEMP=hwmon0/pwm2=25
+        MAXTEMP=hwmon0/pwm2=60
+        MINSTART=hwmon0/pwm2=25
+        MINSTOP=hwmon0/pwm2=10
+        MINPWM=hwmon0/pwm2=0
+        MAXPWM=hwmon0/pwm2=255
+      '';
+      description = "Contents for configuration file. See <citerefentry><refentrytitle>pwmconfig</refentrytitle><manvolnum>8</manvolnum></citerefentry>.";
+    };
+  };
+
+
+  config = mkIf cfg.enable {
+    systemd.services.fancontrol = {
+      description = "Fan speed control from lm_sensors";
+      wantedBy = [ "multi-user.target" ];
+      serviceConfig = {
+        Type = "simple";
+        ExecStart = "${pkgs.lm_sensors}/bin/fancontrol ${configFile}";
+      };
+    };
+  };
+}