odroid@omega:~$ sudo -s
[sudo] Mot de passe de odroid :
root@omega:~# echo "38 150 195 245" > /sys/devices/platform/pwm-fan/hwmon/hwmon0/fan_speed
root@omega:~# cat /sys/devices/platform/pwm-fan:/hwmon/hwmon0/fan_speed 38 150 195 245
root@omega:~#
Ce qui donne une température de CPU au repos, dans un boitier avec une température de la piéce de 22°C.
governor -> performance : 55°C
governor -> ondemand : 45°C
Il est recommandé d'ajouter ces commandes dans le fichier /etc/rc.local
#!/bin/sh -e
# # rc.local #
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "" on success or any other # value on error. #
# In order to enable or disable this script just change the execution
# bits. #
# By default this script does nothing.
# manage the fan
if [ -f /sys/devices/virtual/thermal/thermal_zone0/trip_point_0_temp ];
then
echo '60000' > /sys/devices/virtual/thermal/thermal_zone0/trip_point_0_temp
echo '70000' > /sys/devices/virtual/thermal/thermal_zone0/trip_point_1_temp
echo '80000' > /sys/devices/virtual/thermal/thermal_zone0/trip_point_2_temp
fi
if [ -f '/sys/devices/platform/pwm-fan:/hwmon/hwmon0/fan_speed' ]; then
# set fan speed
echo "38 77 150 245" > /sys/devices/platform/pwm-fan/hwmon/hwmon0/fan_speed
fi
exit 0
