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/device.h> 17 #include <linux/leds.h> 18 19 static inline void led_set_brightness(struct led_classdev *led_cdev, 20 enum led_brightness value) 21 { 22 if (value > LED_FULL) 23 value = LED_FULL; 24 led_cdev->brightness = value; 25 if (!(led_cdev->flags & LED_SUSPENDED)) 26 led_cdev->brightness_set(led_cdev, value); 27 } 28 29 extern rwlock_t leds_list_lock; 30 extern struct list_head leds_list; 31 32 #ifdef CONFIG_LEDS_TRIGGERS 33 void led_trigger_set_default(struct led_classdev *led_cdev); 34 void led_trigger_set(struct led_classdev *led_cdev, 35 struct led_trigger *trigger); 36 #else 37 #define led_trigger_set_default(x) do {} while(0) 38 #define led_trigger_set(x, y) do {} while(0) 39 #endif 40 41 ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr, 42 const char *buf, size_t count); 43 ssize_t led_trigger_show(struct device *dev, struct device_attribute *attr, 44 char *buf); 45 46 #endif /* __LEDS_H_INCLUDED */ 47