Fan control failed on xavier nx with jetpack 5.0.2

Autonomous Machines Jetson & Embedded Systems Jetson Xavier NX
1

Hi Nvidia,
For factory requirement, we need test the fan on module, jp502 had changed the fan node

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We test the Fan with command: echo 255 /sys/devices/platform/pwm-fan/hwmon/hwmon4/pwm1
But our module’s fan no start to turn, it looks this node could not control module fan.
And we can’t found the rpm node on /sys/devices/generic_pwm_tachometer/hwmon/hwmon/rpm
Does this node had implemented on jp502?

3

hello user8967,

please check hwmon nodes for rpm, for example, /sys/class/hwmon/hwmon1/rpm
you may also review all kernel enumerated nodes with… $ cat /sys/class/hwmon/hwmon*/name

please also check nvfancontrol. it is a userspace fan speed control daemon.
the default FAN_DEFAULT_PROFILE should be quite, can you update the profile as cool for testing?

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