diff --git a/libhealthd/healthd_board_exynos4.cpp b/libhealthd/healthd_board_exynos4.cpp
index 5809692..cf178e0 100644
--- a/libhealthd/healthd_board_exynos4.cpp
+++ b/libhealthd/healthd_board_exynos4.cpp
@@ -37,3 +37,23 @@ healthd_board_battery_update(struct android::BatteryProperties *props)
     // return 0 to log periodic polled battery status to kernel log
     return 0;
 }
+
+void healthd_board_mode_charger_draw_battery(struct android::BatteryProperties*)
+{
+
+}
+
+void healthd_board_mode_charger_battery_update(struct android::BatteryProperties*)
+{
+
+}
+
+void healthd_board_mode_charger_set_backlight(bool)
+{
+
+}
+
+void healthd_board_mode_charger_init()
+{
+
+}