diff --git a/src/utils.cpp b/src/utils.cpp
new file mode 100644
index 0000000..deb5eee
--- /dev/null
+++ b/src/utils.cpp
@@ -0,0 +1,31 @@
+#include "config.h"
+
+#include "utils.hpp"
+
+#include <fstream>
+
+namespace utils
+{
+
+namespace // anonymous
+{
+constexpr auto MAPPER_BUSNAME = "xyz.openbmc_project.ObjectMapper";
+constexpr auto MAPPER_PATH = "/xyz/openbmc_project/object_mapper";
+constexpr auto MAPPER_INTERFACE = "xyz.openbmc_project.ObjectMapper";
+} // namespace
+
+std::vector<std::string> getPSUInventoryPath(sdbusplus::bus::bus& bus)
+{
+    std::vector<std::string> paths;
+    auto method = bus.new_method_call(MAPPER_BUSNAME, MAPPER_PATH,
+                                      MAPPER_INTERFACE, "GetSubTreePaths");
+    method.append(PSU_INVENTORY_PATH_BASE);
+    method.append(0); // Depth 0 to search all
+    method.append(std::vector<std::string>({PSU_INVENTORY_IFACE}));
+    auto reply = bus.call(method);
+
+    reply.read(paths);
+    return paths;
+}
+
+} // namespace utils