Some LEDs can be programmed to blink without any CPU interaction. To
support this feature, a LED driver can optionally implement the
Some LEDs can be programmed to blink without any CPU interaction. To
support this feature, a LED driver can optionally implement the
attempt to use it before falling back to software timers. The blink_set()
function should return 0 if the blink setting is supported, or -EINVAL
otherwise, which means that LED blinking will be handled by software.
attempt to use it before falling back to software timers. The blink_set()
function should return 0 if the blink setting is supported, or -EINVAL
otherwise, which means that LED blinking will be handled by software.