summaryrefslogtreecommitdiff
path: root/include/linux/backlight.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/backlight.h')
-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;
struct backlight_properties {
/* Owner module */
struct module *owner;
- /* Get the backlight power status (0: full on, 1..3: power saving
- modes; 4: full off), see FB_BLANK_XXX */
- int (*get_power)(struct backlight_device *);
- /* Enable or disable power to the LCD (0: on; 4: off, see FB_BLANK_XXX) */
- int (*set_power)(struct backlight_device *, int power);
- /* Maximal value for brightness (read-only) */
- int max_brightness;
- /* Get current backlight brightness */
+
+ /* Notify the backlight driver some property has changed */
+ int (*update_status)(struct backlight_device *);
+ /* Return the current backlight brightness (accounting for power,
+ fb_blank etc.) */
int (*get_brightness)(struct backlight_device *);
- /* Set backlight brightness (0..max_brightness) */
- int (*set_brightness)(struct backlight_device *, int brightness);
/* Check if given framebuffer device is the one bound to this backlight;
return 0 if not, !=0 if it is. If NULL, backlight always matches the fb. */
int (*check_fb)(struct fb_info *);
+
+ /* Current User requested brightness (0 - max_brightness) */
+ int brightness;
+ /* Maximal value for brightness (read-only) */
+ int max_brightness;
+ /* Current FB Power mode (0: full on, 1..3: power saving
+ modes; 4: full off), see FB_BLANK_XXX */
+ int power;
+ /* FB Blanking active? (values as for power) */
+ int fb_blank;
};
struct backlight_device {