diff options
Diffstat (limited to 'include/linux/backlight.h')
-rw-r--r-- | include/linux/backlight.h | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/include/linux/backlight.h b/include/linux/backlight.h index bb9e54322322..75e91f5b6a04 100644 --- a/include/linux/backlight.h +++ b/include/linux/backlight.h | |||
@@ -19,20 +19,25 @@ struct fb_info; | |||
19 | struct backlight_properties { | 19 | struct backlight_properties { |
20 | /* Owner module */ | 20 | /* Owner module */ |
21 | struct module *owner; | 21 | struct module *owner; |
22 | /* Get the backlight power status (0: full on, 1..3: power saving | 22 | |
23 | modes; 4: full off), see FB_BLANK_XXX */ | 23 | /* Notify the backlight driver some property has changed */ |
24 | int (*get_power)(struct backlight_device *); | 24 | int (*update_status)(struct backlight_device *); |
25 | /* Enable or disable power to the LCD (0: on; 4: off, see FB_BLANK_XXX) */ | 25 | /* Return the current backlight brightness (accounting for power, |
26 | int (*set_power)(struct backlight_device *, int power); | 26 | fb_blank etc.) */ |
27 | /* Maximal value for brightness (read-only) */ | ||
28 | int max_brightness; | ||
29 | /* Get current backlight brightness */ | ||
30 | int (*get_brightness)(struct backlight_device *); | 27 | int (*get_brightness)(struct backlight_device *); |
31 | /* Set backlight brightness (0..max_brightness) */ | ||
32 | int (*set_brightness)(struct backlight_device *, int brightness); | ||
33 | /* Check if given framebuffer device is the one bound to this backlight; | 28 | /* Check if given framebuffer device is the one bound to this backlight; |
34 | return 0 if not, !=0 if it is. If NULL, backlight always matches the fb. */ | 29 | return 0 if not, !=0 if it is. If NULL, backlight always matches the fb. */ |
35 | int (*check_fb)(struct fb_info *); | 30 | int (*check_fb)(struct fb_info *); |
31 | |||
32 | /* Current User requested brightness (0 - max_brightness) */ | ||
33 | int brightness; | ||
34 | /* Maximal value for brightness (read-only) */ | ||
35 | int max_brightness; | ||
36 | /* Current FB Power mode (0: full on, 1..3: power saving | ||
37 | modes; 4: full off), see FB_BLANK_XXX */ | ||
38 | int power; | ||
39 | /* FB Blanking active? (values as for power) */ | ||
40 | int fb_blank; | ||
36 | }; | 41 | }; |
37 | 42 | ||
38 | struct backlight_device { | 43 | struct backlight_device { |