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openwrt-master/target/linux/kirkwood/base-files/etc/init.d/hwmon_fancontrol
domenico c06fb25d1f
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Initial commit
2025-06-24 14:35:53 +02:00

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#!/bin/sh /etc/rc.common
START=98
boot() {
# configuring onboard temp/fan controller to run the fan on its own
# for more information, please read https://www.kernel.org/doc/Documentation/hwmon/sysfs-interface
case $(board_name) in
ctera,c200-v1)
path_to_hwmon='/sys/devices/platform/ocp@f1000000/f1011000.i2c/i2c-0/0-004c/hwmon/hwmon0'
# It should be related to hdd temerature instead lm63 temp
echo 1 > "$path_to_hwmon/pwm1_enable"
echo 128 > "$path_to_hwmon/pwm1"
;;
iom,ix2-200)
path_to_hwmon='/sys/class/hwmon/hwmon0'
echo 2 > "$path_to_hwmon/pwm1_enable" # fan is on pwm1
;;
netgear,readynas-duo-v2)
path_to_hwmon='/sys/class/hwmon/hwmon0'
echo 1200 > "$path_to_hwmon/fan1_target" # set target rpm
;;
seagate,blackarmor-nas220)
path_to_hwmon='/sys/devices/platform/ocp@f1000000/f1011000.i2c/i2c-0/0-002e/hwmon/hwmon0'
# adt7476 fan control chip. 3 temp sensors. Set to 1/4 speed at 35C and max speed at 48C.
echo 7 > "$path_to_hwmon/pwm1_auto_channels_temp"
echo 64 > "$path_to_hwmon/pwm1_auto_point1_pwm"
echo 255 > "$path_to_hwmon/pwm1_auto_point2_pwm"
echo 35000 > "$path_to_hwmon/temp1_auto_point1_temp"
echo 48000 > "$path_to_hwmon/temp1_auto_point2_temp"
echo 35000 > "$path_to_hwmon/temp2_auto_point1_temp"
echo 48000 > "$path_to_hwmon/temp2_auto_point2_temp"
echo 35000 > "$path_to_hwmon/temp3_auto_point1_temp"
echo 48000 > "$path_to_hwmon/temp3_auto_point2_temp"
echo 2 > "$path_to_hwmon/pwm1_enable"
;;
zyxel,nsa310b)
path_to_hwmon='/sys/devices/platform/ocp@f1000000/f1011000.i2c/i2c-0/0-002e/hwmon/hwmon0'
# use the max. value of (temp1) OR (temp2) OR (temp3) as an input
# for the PWM of the cooling fan
echo 123 > "$path_to_hwmon/pwm1_auto_channels"
# Temperature sensor #1 placed on mainboard
echo 30000 > "$path_to_hwmon/temp1_auto_temp_min"
echo 49600 > "$path_to_hwmon/temp1_auto_temp_max"
# Temperature sensor #2 placed on mainboard
# range: 0 to 127000 in steps of 1000 [millicelsius]
echo 30000 > "$path_to_hwmon/temp2_auto_temp_min"
# range: 0 to 127000 in steps of ???? [millicelsius]
echo 49600 > "$path_to_hwmon/temp2_auto_temp_max"
# Temperature sensor #3 placed close to a chipset
# range: 0 to 60000 in steps of 1000 [millicelsius]
echo 23000 > "$path_to_hwmon/temp3_auto_temp_min"
# pre-defined steps: 103000, 122000, 143300, 170000 in [millicelsius]
echo 103000 > "$path_to_hwmon/temp3_auto_temp_max"
;;
esac
}