LP5036EVM: How to contorl LEDs via /sys/class/leds

Hi,

I refer to the document "lore.kernel.org/.../" to generate the dts file.

And I generate some nodes in my host system as below

# ls /sys/class/leds/
multicolor:activity multicolor:standby multicolor:status

But I have no idea about how to control LED via the file nodes.

Is there any document that can be referenced?

Thanks a lot.

Yo