Support for Independent Dual-Fan PWM/Tachometer Configuration

Robotics & Edge Computing Jetson Systems Jetson Thor
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We have custom carrier board based on Jetson Thor. Our hardware design features two independent PWM control signals and two independent tachometer inputs.

  1. Independent Control: Does the NVIDIA thermal management stack (e.g., nvfancontrol) support two separate PWM fan instances with independent automatic thermal curves?
  2. Software Patching:If the driver defaults to a single instance, what are the specific Device Tree (DTB) requirements to map a second PWM/Tach pair for independent OS-level control?

Thanks
Khushbu

4

No, nvfancontrol only supports the original FAN.

To enable 2nd fan, please set the status of “tachometer@810c5d0000” to okay in the device tree.

Also, this need to be on JP7.1. J7.0 does not support this.

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