diff --git a/sys/compat/linuxkpi/common/include/linux/backlight.h b/sys/compat/linuxkpi/common/include/linux/backlight.h
index 9591a4b671ab..5a3c7080b55d 100644
--- a/sys/compat/linuxkpi/common/include/linux/backlight.h
+++ b/sys/compat/linuxkpi/common/include/linux/backlight.h
@@ -91,6 +91,13 @@ backlight_force_update(struct backlight_device *bd, int reason)
 	bd->props.brightness = bd->ops->get_brightness(bd);
 }
 
+static inline int
+backlight_get_brightness(struct backlight_device *bd)
+{
+
+	return (bd->props.brightness);
+}
+
 static inline int
 backlight_device_set_brightness(struct backlight_device *bd, int brightness)
 {
@@ -119,4 +126,11 @@ backlight_disable(struct backlight_device *bd)
 	return (backlight_update_status(bd));
 }
 
+static inline bool
+backlight_is_blank(struct backlight_device *bd)
+{
+
+	return (bd->props.power != 0/* FB_BLANK_UNBLANK */);
+}
+
 #endif	/* _LINUXKPI_LINUX_BACKLIGHT_H_ */