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kernel/linux-rt-4.4.41/drivers/leds/trigger/ledtrig-ide-disk.c 1.07 KB
5113f6f70   김현기   kernel add
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  /*
   * LED IDE-Disk Activity Trigger
   *
   * Copyright 2006 Openedhand Ltd.
   *
   * Author: Richard Purdie <rpurdie@openedhand.com>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   *
   */
  
  #include <linux/module.h>
  #include <linux/kernel.h>
  #include <linux/init.h>
  #include <linux/leds.h>
  
  #define BLINK_DELAY 30
  
  DEFINE_LED_TRIGGER(ledtrig_ide);
  static unsigned long ide_blink_delay = BLINK_DELAY;
  
  void ledtrig_ide_activity(void)
  {
  	led_trigger_blink_oneshot(ledtrig_ide,
  				  &ide_blink_delay, &ide_blink_delay, 0);
  }
  EXPORT_SYMBOL(ledtrig_ide_activity);
  
  static int __init ledtrig_ide_init(void)
  {
  	led_trigger_register_simple("ide-disk", &ledtrig_ide);
  	return 0;
  }
  
  static void __exit ledtrig_ide_exit(void)
  {
  	led_trigger_unregister_simple(ledtrig_ide);
  }
  
  module_init(ledtrig_ide_init);
  module_exit(ledtrig_ide_exit);
  
  MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>");
  MODULE_DESCRIPTION("LED IDE Disk Activity Trigger");
  MODULE_LICENSE("GPL");