71 #define bl_get_data(bd) (bd)->data  argument
75 void linux_backlight_device_unregister(struct backlight_device *bd);
78 #define	backlight_device_unregister(bd)	linux_backlight_device_unregister(bd)  argument
81 backlight_update_status(struct backlight_device *bd)  in backlight_update_status()  argument
83 	return (bd->ops->update_status(bd));  in backlight_update_status()
87 backlight_force_update(struct backlight_device *bd, int reason)  in backlight_force_update()  argument
89 	bd->props.brightness = bd->ops->get_brightness(bd);  in backlight_force_update()
93 backlight_get_brightness(struct backlight_device *bd)  in backlight_get_brightness()  argument
96 	return (bd->props.brightness);  in backlight_get_brightness()
100 backlight_device_set_brightness(struct backlight_device *bd, int brightness)  in backlight_device_set_brightness()  argument
103 	if (brightness > bd->props.max_brightness)  in backlight_device_set_brightness()
105 	bd->props.brightness = brightness;  in backlight_device_set_brightness()
106 	return (bd->ops->update_status(bd));  in backlight_device_set_brightness()
110 backlight_enable(struct backlight_device *bd)  in backlight_enable()  argument
112 	if (bd == NULL)  in backlight_enable()
114 	bd->props.power = 0/* FB_BLANK_UNBLANK */;  in backlight_enable()
115 	return (backlight_update_status(bd));  in backlight_enable()
119 backlight_disable(struct backlight_device *bd)  in backlight_disable()  argument
121 	if (bd == NULL)  in backlight_disable()
123 	bd->props.power = 4/* FB_BLANK_POWERDOWN */;  in backlight_disable()
124 	return (backlight_update_status(bd));  in backlight_disable()
128 backlight_is_blank(struct backlight_device *bd)  in backlight_is_blank()  argument
131 	return (bd->props.power != 0/* FB_BLANK_UNBLANK */);  in backlight_is_blank()