Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0f4915b9c5d7a35da11bfcff80ae6466cb7b9fc4
Commit: 0f4915b9c5d7a35da11bfcff80ae6466cb7b9fc4
Parent: 4710bcce8e02257c8a423b7a62ea81d0207582c8
Author: Stephen Hemminger <[EMAIL PROTECTED]>
AuthorDate: Sun Jul 1 12:50:35 2007 -0400
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Sun Jul 1 11:08:39 2007 -0700
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: Stephen Hemminger <[EMAIL PROTECTED]>
[ We should really just delete the whole thing. The blink driver is
broken in many other ways too -Linus ]
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
drivers/misc/blink.c | 22 ++++++++++++++++++++--
1 files changed, 20 insertions(+), 2 deletions(-)
diff --git a/drivers/misc/blink.c b/drivers/misc/blink.c
index 634431c..97f7253 100644
--- a/drivers/misc/blink.c
+++ b/drivers/misc/blink.c
@@ -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);
-
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