diff --git a/host-bmc/dbus/custom_dbus.hpp b/host-bmc/dbus/custom_dbus.hpp
index c5d7e29..5d7cf2e 100644
--- a/host-bmc/dbus/custom_dbus.hpp
+++ b/host-bmc/dbus/custom_dbus.hpp
@@ -2,6 +2,7 @@
 
 #include "common/utils.hpp"
 #include "cpu_core.hpp"
+#include "pcie_device.hpp"
 #include "pcie_slot.hpp"
 
 #include <sdbusplus/server.hpp>
@@ -96,9 +97,25 @@
      */
     void setSlotType(const std::string& path, const std::string& slotType);
 
+    /** @brief Implement PCIe Device Interface
+     *
+     *  @param[in] path - the object path
+     */
+    void implementPCIeDeviceInterface(const std::string& path);
+
+    /** @brief Set PCIe Device Lanes in use property
+     *
+     *  @param[in] path - the object path
+     *  @param[in] lanesInUse - Lanes in use
+     *  @param[in] value - Generation in use
+     */
+    void setPCIeDeviceProps(const std::string& path, size_t lanesInUse,
+                            const std::string& value);
+
   private:
     std::unordered_map<ObjectPath, std::unique_ptr<LocationIntf>> location;
     std::unordered_map<ObjectPath, std::unique_ptr<CPUCore>> cpuCore;
+    std::unordered_map<ObjectPath, std::unique_ptr<PCIeDevice>> pcieDevice;
     std::unordered_map<ObjectPath, std::unique_ptr<PCIeSlot>> pcieSlot;
 };