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Grouping multiple monochrome LEDs into a multicolor LED device has a few benefits over handling the group in user-space: - The state of the LEDs relative to each other is consistent. In other words, if 2 threads competes to set the LED to green and red, the end-result cannot be black or yellow. - The multicolor LED as a whole can be driven through the sysfs LED interface. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com> Reviewed-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230728153731.3742339-5-jjhiblot@traphandler.com Signed-off-by: Lee Jones <lee@kernel.org>