1 /*
2  * LED Disk Activity Trigger
3  *
4  * Copyright 2006 Openedhand Ltd.
5  *
6  * Author: Richard Purdie <rpurdie@openedhand.com>
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License version 2 as
10  * published by the Free Software Foundation.
11  *
12  */
13 
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/leds.h>
17 
18 #define BLINK_DELAY 30
19 
20 DEFINE_LED_TRIGGER(ledtrig_disk);
21 DEFINE_LED_TRIGGER(ledtrig_ide);
22 
23 void ledtrig_disk_activity(void)
24 {
25 	unsigned long blink_delay = BLINK_DELAY;
26 
27 	led_trigger_blink_oneshot(ledtrig_disk,
28 				  &blink_delay, &blink_delay, 0);
29 	led_trigger_blink_oneshot(ledtrig_ide,
30 				  &blink_delay, &blink_delay, 0);
31 }
32 EXPORT_SYMBOL(ledtrig_disk_activity);
33 
34 static int __init ledtrig_disk_init(void)
35 {
36 	led_trigger_register_simple("disk-activity", &ledtrig_disk);
37 	led_trigger_register_simple("ide-disk", &ledtrig_ide);
38 
39 	return 0;
40 }
41 device_initcall(ledtrig_disk_init);
42