忘记是从哪个固件提取出来的了，本来是好几个文件，都写到一个文件里了，并修复了restart
创建 /etc/init.d/fan 写入以下内容，完事了记得 chmod +x /etc/init.d/fan ，然后 /etc/init.d/fan enable 自启， /etc/init.d/fan start 启动。
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#!/bin/sh /etc/rc.common START=21 STOP=21 start() { fan_control & } stop() { # 查找并杀死 fan_control 进程 SELF_PID=$$ PID=$(pgrep -f "fan") if [ -n "$PID" ]; then kill $PID logger -p user.info -t "pwmfan" "Stopped fan (PID: $PID)" fi } # Fan control logic fan_control() { # Determine fan controller if [ -d /sys/devices/platform/pwm-fan ]; then (cd /sys/devices/virtual/thermal/thermal_zone0 && { logger -p user.info -t "pwmfan" "set the conditions for fan" [ -f trip_point_3_temp ] && { # select fan level 1 echo 50000 > trip_point_3_temp } [ -f trip_point_4_temp ] && { # select fan level 2-4 echo 55000 > trip_point_4_temp } }) (cd /sys/devices/virtual/thermal/cooling_device0 && { TYPE=$(cat type) if [ "$TYPE" = 'pwm-fan' ]; then # run 5s for i in $(seq 1 5); do logger -p user.info -t "pwmfan" "start to spin ${i}/5" echo 3 > cur_state sleep 1 done logger -p user.info -t "pwmfan" "set to auto" echo 0 > cur_state fi }) else logger -p user.info -t "pwmfan" "not found cooling device" if [ -d /sys/class/pwm/pwmchip0 ]; then fan_control_direct & fi fi } # Direct fan control logic fan_control_direct() { # Determine fan controller if [ -d /sys/devices/platform/pwm-fan ]; then echo "pls use fan_control." exit 1 fi if [ ! -d /sys/class/pwm/pwmchip0 ]; then echo "this model does not support pwm." exit 1 fi if [ ! -d /sys/class/pwm/pwmchip0/pwm0 ]; then echo 0 > /sys/class/pwm/pwmchip0/export fi sleep 1 while [ ! -d /sys/class/pwm/pwmchip0/pwm0 ]; do sleep 1 done ISENABLE=$(cat /sys/class/pwm/pwmchip0/pwm0/enable) if [ "$ISENABLE" -eq 1 ]; then echo 0 > /sys/class/pwm/pwmchip0/pwm0/enable fi echo 50000 > /sys/class/pwm/pwmchip0/pwm0/period echo 1 > /sys/class/pwm/pwmchip0/pwm0/enable # max speed run 5s echo 46990 > /sys/class/pwm/pwmchip0/pwm0/duty_cycle sleep 5 echo 25000 > /sys/class/pwm/pwmchip0/pwm0/duty_cycle # Temperature thresholds and PWM duty cycles CpuTemps="75000 63000 58000 52000" PwmDutyCycles="25000 35000 45000 46990" Percents="100 75 50 25" DefaultDuty=49990 DefaultPercents=0 while true; do temp=$(cat /sys/class/thermal/thermal_zone0/temp) INDEX=0 FOUNDTEMP=0 DUTY=$DefaultDuty PERCENT=$DefaultPercents # Convert space-separated strings to lists set -- $CpuTemps for i in 0 1 2 3; do if [ "$temp" -gt "$1" ]; then INDEX=$i FOUNDTEMP=1 break fi shift done if [ "$FOUNDTEMP" -eq 1 ]; then set -- $PwmDutyCycles for i in $(seq 1 $((INDEX + 1))); do DUTY=$1 shift done fi echo "$DUTY" > /sys/class/pwm/pwmchip0/pwm0/duty_cycle sleep 2 done } |
如果你希望修改不同温度对应的转速，修改脚本里下面的这些内容（分别是75,63,58,52摄氏度）
# Temperature thresholds and PWM duty cycles
CpuTemps=”75000 63000 58000 52000″
PwmDutyCycles=”25000 35000 45000 46990″
