Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 0f4915b9 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by Linus Torvalds
Browse files

blink driver power saving 



The blink driver wakes up every jiffies which wastes power unnecessarily.
Using a notifier gives same effect. Also add ability to unload module.

Signed-off-by: default avatarStephen Hemminger <shemminger@linux-foundation.org>
[ We should really just delete the whole thing. The blink driver is
  broken in many other ways too  -Linus ]
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 4710bcce

drivers/misc/blink.c

+20 −2
Original line number Diff line number Diff line
@@ -16,12 +16,30 @@ static void do_blink(unsigned long data) 
	add_timer(&blink_timer);

}



static int blink_init(void)

static int blink_panic_event(struct notifier_block *blk,

			     unsigned long event, void *arg)

{

	printk(KERN_INFO "Enabling keyboard blinking\n");

	do_blink(0);

	return 0;

}



static struct notifier_block blink_notify = {

	.notifier_call = blink_panic_event,

};



static __init int blink_init(void)

{

	printk(KERN_INFO "Enabling keyboard blinking\n");

	atomic_notifier_chain_register(&panic_notifier_list, &blink_notify);

	return 0;

}



static __exit void blink_remove(void)

{

	del_timer_sync(&blink_timer);

	atomic_notifier_chain_unregister(&panic_notifier_list, &blink_notify);

}



module_init(blink_init);

module_exit(blink_remove);