diff options
Diffstat (limited to 'include/linux/leds.h')
-rw-r--r-- | include/linux/leds.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/include/linux/leds.h b/include/linux/leds.h new file mode 100644 index 000000000000..6812640b39cc --- /dev/null +++ b/include/linux/leds.h | |||
@@ -0,0 +1,51 @@ | |||
1 | /* | ||
2 | * Driver model for leds and led triggers | ||
3 | * | ||
4 | * Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu> | ||
5 | * Copyright (C) 2005 Richard Purdie <rpurdie@openedhand.com> | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License version 2 as | ||
9 | * published by the Free Software Foundation. | ||
10 | * | ||
11 | */ | ||
12 | #ifndef __LINUX_LEDS_H_INCLUDED | ||
13 | #define __LINUX_LEDS_H_INCLUDED | ||
14 | |||
15 | struct device; | ||
16 | struct class_device; | ||
17 | /* | ||
18 | * LED Core | ||
19 | */ | ||
20 | |||
21 | enum led_brightness { | ||
22 | LED_OFF = 0, | ||
23 | LED_HALF = 127, | ||
24 | LED_FULL = 255, | ||
25 | }; | ||
26 | |||
27 | struct led_classdev { | ||
28 | const char *name; | ||
29 | int brightness; | ||
30 | int flags; | ||
31 | #define LED_SUSPENDED (1 << 0) | ||
32 | |||
33 | /* A function to set the brightness of the led */ | ||
34 | void (*brightness_set)(struct led_classdev *led_cdev, | ||
35 | enum led_brightness brightness); | ||
36 | |||
37 | struct class_device *class_dev; | ||
38 | /* LED Device linked list */ | ||
39 | struct list_head node; | ||
40 | |||
41 | /* Trigger data */ | ||
42 | char *default_trigger; | ||
43 | }; | ||
44 | |||
45 | extern int led_classdev_register(struct device *parent, | ||
46 | struct led_classdev *led_cdev); | ||
47 | extern void led_classdev_unregister(struct led_classdev *led_cdev); | ||
48 | extern void led_classdev_suspend(struct led_classdev *led_cdev); | ||
49 | extern void led_classdev_resume(struct led_classdev *led_cdev); | ||
50 | |||
51 | #endif /* __LINUX_LEDS_H_INCLUDED */ | ||