1. 根目录:
2. drivers
3. leds
4. ledtrig-default-on.c

/*
 * LED Kernel Default ON Trigger
 *
 * Copyright 2008 Nick Forbes <nick.forbes@incepta.com>
 *
 * Based on Richard Purdie's ledtrig-timer.c.
 *
 * 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>
#include "leds.h"

static void defon_trig_activate(struct led_classdev *led_cdev)
{
	led_set_brightness(led_cdev, led_cdev->max_brightness);
}

static struct led_trigger defon_led_trigger = {
	.name     = "default-on",
	.activate = defon_trig_activate,
};

static int __init defon_trig_init(void)
{
	return led_trigger_register(&defon_led_trigger);
}

static void __exit defon_trig_exit(void)
{
	led_trigger_unregister(&defon_led_trigger);
}

module_init(defon_trig_init);
module_exit(defon_trig_exit);

MODULE_AUTHOR("Nick Forbes <nick.forbes@incepta.com>");
MODULE_DESCRIPTION("Default-ON LED trigger");
MODULE_LICENSE("GPL");