leds.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * LED Core
 4 *
 5 * Copyright 2005 Openedhand Ltd.
 6 *
 7 * Author: Richard Purdie <rpurdie@openedhand.com>
 8 */
 9#ifndef __LEDS_H_INCLUDED
10#define __LEDS_H_INCLUDED
11
12#include <linux/rwsem.h>
13#include <linux/leds.h>
14
15static inline int led_get_brightness(struct led_classdev *led_cdev)
16{
17	return led_cdev->brightness;
18}
19
20void led_init_core(struct led_classdev *led_cdev);
21void led_stop_software_blink(struct led_classdev *led_cdev);
22void led_set_brightness_nopm(struct led_classdev *led_cdev, unsigned int value);
23void led_set_brightness_nosleep(struct led_classdev *led_cdev, unsigned int value);
24ssize_t led_trigger_read(struct file *filp, struct kobject *kobj,
25			const struct bin_attribute *attr, char *buf,
26			loff_t pos, size_t count);
27ssize_t led_trigger_write(struct file *filp, struct kobject *kobj,
28			const struct bin_attribute *bin_attr, char *buf,
29			loff_t pos, size_t count);
30
31extern struct rw_semaphore leds_list_lock;
32extern struct list_head leds_list;
33
34#endif	/* __LEDS_H_INCLUDED */