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srv-core: Add fancontrol

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SebastianStork 2026-03-09 17:17:14 +01:00
parent 5c2647ca56
commit dc95d6fd77
Signed by: SebastianStork
SSH key fingerprint: SHA256:tRrGdjYOwgHxpSc/wTOZQZEjxcb15P0tyXRsbAfd+2Q
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hosts/srv-core/hardware.nix
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@ -42,4 +42,33 @@
};
};
};
# Ensure pwm2_enable is set to 2 (automatic) before fancontrol starts,
# because the IT8613E can't transition 0 -> 1 (manual) directly,
# but can do 2 -> 1 which fancontrol requires.
systemd.services.fancontrol-pwm-init = {
description = "Initialize IT8613E PWM mode for fancontrol";
before = [ "fancontrol.service" ];
requiredBy = [ "fancontrol.service" ];
serviceConfig.Type = "oneshot";
script = "echo 2 > /sys/devices/platform/it87.2608/hwmon/hwmon*/pwm2_enable";
unitConfig.ConditionPathExists = "/sys/devices/platform/it87.2608";
};
hardware.fancontrol = {
enable = true;
config = ''
INTERVAL=5
DEVPATH=hwmon1=devices/platform/coretemp.0 hwmon2=devices/platform/it87.2608
DEVNAME=hwmon1=coretemp hwmon2=it8613
FCTEMPS=hwmon2/pwm2=hwmon1/temp1_input
FCFANS=hwmon2/pwm2=hwmon2/fan2_input
MINTEMP=hwmon2/pwm2=70
MAXTEMP=hwmon2/pwm2=100
MINSTART=hwmon2/pwm2=35
MINSTOP=hwmon2/pwm2=25
MINPWM=hwmon2/pwm2=0
MAXPWM=hwmon2/pwm2=255
'';
};
}