Logitech G510 keyboard backlight supports multicolor LED API

We made the Logitech G510 keyboard to support standard multi-color LED API to configure the keyboard backlight LED colors and brightness. The legacy sysfs property “color” was removed. We invite the user or apps that configure LED color through that property to use the new one.

The G510 owner can change the color of the keyboard backlight LED through the following command

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# make LED show red.
echo "255 0 0" > /sys/class/led/g15::kbd_backlight/intensity

and change the brightness through

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echo "100" > /sys/class/led/g15::kbd_backlight/brightness

Thank you for Hans’ review.

[1] https://lore.kernel.org/linux-input/20250131140241.586305-1-hpa@redhat.com/T/#u