diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..7a33afb
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "utilities/imp_util_ring_queue"]
+	path = utilities/imp_util_ring_queue
+	url = ssh://git@192.168.124.18:222/Utilities/imp_util_ring_queue.git
diff --git a/utilities/README.md b/utilities/README.md
new file mode 100644
index 0000000..e69de29
diff --git a/utilities/imp_util_ring_queue b/utilities/imp_util_ring_queue
new file mode 160000
index 0000000..0fe7ebe
--- /dev/null
+++ b/utilities/imp_util_ring_queue
@@ -0,0 +1 @@
+Subproject commit 0fe7ebee80fcdbb980503d5f3007b1456ffe9f4a