linux/drivers/leds/ledtrig-ide-disk.c
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   1/*
   2 * LED IDE-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/module.h>
  15#include <linux/kernel.h>
  16#include <linux/init.h>
  17#include <linux/leds.h>
  18
  19#define BLINK_DELAY 30
  20
  21DEFINE_LED_TRIGGER(ledtrig_ide);
  22static unsigned long ide_blink_delay = BLINK_DELAY;
  23
  24void ledtrig_ide_activity(void)
  25{
  26        led_trigger_blink_oneshot(ledtrig_ide,
  27                                  &ide_blink_delay, &ide_blink_delay, 0);
  28}
  29EXPORT_SYMBOL(ledtrig_ide_activity);
  30
  31static int __init ledtrig_ide_init(void)
  32{
  33        led_trigger_register_simple("ide-disk", &ledtrig_ide);
  34        return 0;
  35}
  36
  37static void __exit ledtrig_ide_exit(void)
  38{
  39        led_trigger_unregister_simple(ledtrig_ide);
  40}
  41
  42module_init(ledtrig_ide_init);
  43module_exit(ledtrig_ide_exit);
  44
  45MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>");
  46MODULE_DESCRIPTION("LED IDE Disk Activity Trigger");
  47MODULE_LICENSE("GPL");
  48
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