mirror of
https://github.com/torvalds/linux.git
synced 2026-06-04 12:35:52 +02:00
916fe61995
This commit introduces a new LED trigger which allows to configure a LED to blink on a kernel panic (through panic_blink). Notice that currently the Openmoko FreeRunner (GTA02) mach code sets panic_blink to blink a hard-coded LED. The new trigger is meant to introduce a generic mechanism to achieve this. Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
31 lines
698 B
C
31 lines
698 B
C
/*
|
|
* Kernel Panic LED Trigger
|
|
*
|
|
* Copyright 2016 Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
|
|
*
|
|
* 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/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/leds.h>
|
|
|
|
static struct led_trigger *trigger;
|
|
|
|
static long led_panic_blink(int state)
|
|
{
|
|
led_trigger_event(trigger, state ? LED_FULL : LED_OFF);
|
|
return 0;
|
|
}
|
|
|
|
static int __init ledtrig_panic_init(void)
|
|
{
|
|
led_trigger_register_simple("panic", &trigger);
|
|
panic_blink = led_panic_blink;
|
|
return 0;
|
|
}
|
|
device_initcall(ledtrig_panic_init);
|