leds.h 1.1 KB

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  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. #include <linux/rwsem.h>
  12. #include <linux/leds.h>
  13. static inline int led_get_brightness(struct led_classdev *led_cdev)
  14. {
  15. return led_cdev->brightness;
  16. }
  17. void led_init_core(struct led_classdev *led_cdev);
  18. void led_stop_software_blink(struct led_classdev *led_cdev);
  19. void led_set_brightness_nopm(struct led_classdev *led_cdev,
  20. enum led_brightness value);
  21. void led_set_brightness_nosleep(struct led_classdev *led_cdev,
  22. enum led_brightness value);
  23. ssize_t led_trigger_read(struct file *filp, struct kobject *kobj,
  24. struct bin_attribute *attr, char *buf,
  25. loff_t pos, size_t count);
  26. ssize_t led_trigger_write(struct file *filp, struct kobject *kobj,
  27. struct bin_attribute *bin_attr, char *buf,
  28. loff_t pos, size_t count);
  29. extern struct rw_semaphore leds_list_lock;
  30. extern struct list_head leds_list;
  31. extern struct list_head trigger_list;
  32. extern const char * const led_colors[LED_COLOR_ID_MAX];
  33. #endif /* __LEDS_H_INCLUDED */