diff options
Diffstat (limited to 'include/backlight.h')
| -rw-r--r-- | include/backlight.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/backlight.h b/include/backlight.h index a304c36e019..ac59eb293b4 100644 --- a/include/backlight.h +++ b/include/backlight.h @@ -7,6 +7,13 @@ #ifndef _BACKLIGHT_H #define _BACKLIGHT_H +enum { + BACKLIGHT_MAX = 100, + BACKLIGHT_MIN = 0, + BACKLIGHT_OFF = -1, + BACKLIGHT_DEFAULT = -2, +}; + struct backlight_ops { /** * enable() - Enable a backlight @@ -15,6 +22,15 @@ struct backlight_ops { * @return 0 if OK, -ve on error */ int (*enable)(struct udevice *dev); + + /** + * set_brightness - Set brightness + * + * @dev: Backlight device to update + * @percent: Brightness value (0 to 100, or BACKLIGHT_... value) + * @return 0 if OK, -ve on error + */ + int (*set_brightness)(struct udevice *dev, int percent); }; #define backlight_get_ops(dev) ((struct backlight_ops *)(dev)->driver->ops) @@ -27,4 +43,13 @@ struct backlight_ops { */ int backlight_enable(struct udevice *dev); +/** + * backlight_set_brightness - Set brightness + * + * @dev: Backlight device to update + * @percent: Brightness value (0 to 100, or BACKLIGHT_... value) + * @return 0 if OK, -ve on error + */ +int backlight_set_brightness(struct udevice *dev, int percent); + #endif |