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-rw-r--r--include/linux/backlight.h25
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;
19struct backlight_properties { 19struct 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
38struct backlight_device { 43struct backlight_device {