target/linux/kirkwood/base-files/etc/init.d/hwmon_fancontrol

   1 #!/bin/sh /etc/rc.common
   2
   3 START=98
   4 boot() {
   5 . /lib/functions.sh
   6
   7 #configuring (lm85/lm63) onboard temp/fan controller to run the fan on its own
   8 #for more information, please read https://www.kernel.org/doc/Documentation/hwmon/sysfs-interface
   9
  10 case $(board_name) in
  11 zyxel,nsa310b)
  12         path_to_hwmon='/sys/devices/platform/ocp@f1000000/f1011000.i2c/i2c-0/0-002e/hwmon/hwmon0'
  13         echo 2 > "$path_to_hwmon/pwm1_enable" # fan is on pwm1
  14         echo 1 > "$path_to_hwmon/pwm1_auto_channels" # temp1 is the only one that changes
  15         echo 23000 > "$path_to_hwmon/temp1_auto_temp_min"
  16         echo 43000 > "$path_to_hwmon/temp1_auto_temp_max" # next step is 49600 millicelsius, or 50 celsius, 43 celsius is better
  17         ;;
  18 iom,ix2-200)
  19         path_to_hwmon='/sys/class/hwmon/hwmon0'
  20         echo 2 > "$path_to_hwmon/pwm1_enable" # fan is on pwm1
  21         ;;
  22 esac
  23 }