diff --git a/side-switch/side_switch.hpp b/side-switch/side_switch.hpp
index 684cae9..4af52cb 100644
--- a/side-switch/side_switch.hpp
+++ b/side-switch/side_switch.hpp
@@ -1,7 +1,17 @@
 #pragma once
 
+#include <sdbusplus/bus.hpp>
+
 /** @brief Determine if a side switch is needed
  *
+ *  @param[in] bus       - The Dbus bus object
  *  @return True if side switch needed, false otherwise
  */
-bool sideSwitchNeeded();
+bool sideSwitchNeeded(sdbusplus::bus::bus& bus);
+
+/** @brief Power off the system
+ *
+ *  @param[in] bus       - The Dbus bus object
+ *  @return True if chassis off success, false otherwise
+ */
+bool powerOffSystem(sdbusplus::bus::bus& bus);