nixpkgs/nixos/modules/services/hardware/fancontrol.nix
Evils 7641769055 nixos/fancontrol: back to running as root
regular users don't have write access to /sys/devices
  which is where the kernel endpoints are to control fan speed
2021-05-17 00:00:01 -07:00

48 lines
1.4 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.hardware.fancontrol;
configFile = pkgs.writeText "fancontrol.conf" cfg.config;
in
{
options.hardware.fancontrol = {
enable = mkEnableOption "software fan control (requires fancontrol.config)";
config = mkOption {
type = types.lines;
description = "Required fancontrol configuration file content. See <citerefentry><refentrytitle>pwmconfig</refentrytitle><manvolnum>8</manvolnum></citerefentry> from the lm_sensors package.";
example = ''
# Configuration file generated by pwmconfig
INTERVAL=10
DEVPATH=hwmon3=devices/virtual/thermal/thermal_zone2 hwmon4=devices/platform/f71882fg.656
DEVNAME=hwmon3=soc_dts1 hwmon4=f71869a
FCTEMPS=hwmon4/device/pwm1=hwmon3/temp1_input
FCFANS=hwmon4/device/pwm1=hwmon4/device/fan1_input
MINTEMP=hwmon4/device/pwm1=35
MAXTEMP=hwmon4/device/pwm1=65
MINSTART=hwmon4/device/pwm1=150
MINSTOP=hwmon4/device/pwm1=0
'';
};
};
config = mkIf cfg.enable {
systemd.services.fancontrol = {
documentation = [ "man:fancontrol(8)" ];
description = "software fan control";
wantedBy = [ "multi-user.target" ];
after = [ "lm_sensors.service" ];
serviceConfig = {
ExecStart = "${pkgs.lm_sensors}/sbin/fancontrol ${configFile}";
};
};
};
meta.maintainers = [ maintainers.evils ];
}