tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * LED Core
3 *
4 * Copyright 2005 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#ifndef __LEDS_H_INCLUDED
14#define __LEDS_H_INCLUDED
15
16#include <linux/leds.h>
17
18static inline void led_set_brightness(struct led_classdev *led_cdev,
19 enum led_brightness value)
20{
21 if (value > LED_FULL)
22 value = LED_FULL;
23 led_cdev->brightness = value;
24 if (!(led_cdev->flags & LED_SUSPENDED))
25 led_cdev->brightness_set(led_cdev, value);
26}
27
28extern rwlock_t leds_list_lock;
29extern struct list_head leds_list;
30
31#ifdef CONFIG_LEDS_TRIGGERS
32void led_trigger_set_default(struct led_classdev *led_cdev);
33void led_trigger_set(struct led_classdev *led_cdev,
34 struct led_trigger *trigger);
35#else
36#define led_trigger_set_default(x) do {} while(0)
37#define led_trigger_set(x, y) do {} while(0)
38#endif
39
40ssize_t led_trigger_store(struct class_device *dev, const char *buf,
41 size_t count);
42ssize_t led_trigger_show(struct class_device *dev, char *buf);
43
44#endif /* __LEDS_H_INCLUDED */