agx32g 模组，L4T35.1 ， 系统启动后， 如何设置让风扇一直处于转动状态？
Please run the following command first to disable nvfancontrol service.
$ systemctl stop nvfancontrol
and then run the following command to control the speed of fan.
$ echo XXX > sys/devices/platform/pwm-fan/hwmon/hwmon3/pwm1
如果是L4T32.6.1，ubuntu18.04系统，是哪个程序控制风扇？ 因为我发现18.04系统中风扇路径是这样的/sys/devices/pwm-fan/target_pwm’， 直接给这个文件赋值255吗？ sudo sh -c ‘echo 255 > /sys/devices/pwm-fan/target_pwm’ ； 另外我想让设备重启后也是一直转，不用每次输入这个命令，如何让他一直生效？
yes, you could also use
echo command to that node for fan.
Please share the result of following command on your board.
$ systemctl --type=service --state=running|grep fan
Could this command work on your board with R32.6.1?
Please refer to the following topic to control fan with R32.
If you want to it run automatically during boot up, you could just add the command to the script which would be run during boot up.
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