Published at LXer:

In the ongoing effort to reduce the power consumption of the linux kernel and take better advantage of the tickless kernel patch, Stephen Hemminger posted a patch to make it possible to unload the keyboard blink driver, "the blink driver wakes up every jiffy which wastes power unnecessarily. Using a notifier gives same effect. Also add ability to unload module." The blink driver was only recently merged, described as a "simple driver that blinks the keyboard LEDs when loaded. Useful for checking that the kernel is still alive or for crashdumping."

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