blob: e77c7f8dcdd469bfa8b84472dabb81e2df1b10e7 [file] [log] [blame]
* LED Core
* Copyright 2005 Openedhand Ltd.
* Author: Richard Purdie <>
* 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/device.h>
#include <linux/rwsem.h>
#include <linux/leds.h>
static inline void led_set_brightness(struct led_classdev *led_cdev,
enum led_brightness value)
if (value > led_cdev->max_brightness)
value = led_cdev->max_brightness;
led_cdev->brightness = value;
if (!(led_cdev->flags & LED_SUSPENDED))
led_cdev->brightness_set(led_cdev, value);
static inline int led_get_brightness(struct led_classdev *led_cdev)
return led_cdev->brightness;
extern struct rw_semaphore leds_list_lock;
extern struct list_head leds_list;
void led_trigger_set_default(struct led_classdev *led_cdev);
void led_trigger_set(struct led_classdev *led_cdev,
struct led_trigger *trigger);
void led_trigger_remove(struct led_classdev *led_cdev);
static inline void *led_get_trigger_data(struct led_classdev *led_cdev)
return led_cdev->trigger_data;
#define led_trigger_set_default(x) do {} while (0)
#define led_trigger_set(x, y) do {} while (0)
#define led_trigger_remove(x) do {} while (0)
#define led_get_trigger_data(x) (NULL)
ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count);
ssize_t led_trigger_show(struct device *dev, struct device_attribute *attr,
char *buf);
#endif /* __LEDS_H_INCLUDED */