How to read board id from carrier board eeprom for jetson xavier nx

Yes, it is working , but my question is,
Is this the ideal way of enabling/disabling the device nodes in runtime?

That depends on what is your definition of “ideal way”. You are the first person on this forum to use carrier board eeprom and plugin-manager to modify dts.

I think that should be no issue.

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I mean is this the correct way of enabling/disabling the devices in runtime?

This should work.