mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-28 05:24:47 +08:00
3740e49c66
Convert ledtrig-ide-disk code to use the generic API for one-shot LED blinking. This patch changes slightly the behaviour of the trigger, as while the original version kept the LED on under heavy activity, the new one keeps a constant on-off blink at 1 / (2 * BLINK_DELAY) Hz. (bryan.wu@canonical.com: remove 2 useless included header files) Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/*
|
|
* 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");
|