diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..56adf3d
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "tcpip_rs232"]
+	path = tcpip_rs232
+	url = git@gitea.psi.ch:lin-midas-drivers/tcpip_rs232.git
diff --git a/tcpip_rs232 b/tcpip_rs232
new file mode 160000
index 0000000..6161526
--- /dev/null
+++ b/tcpip_rs232
@@ -0,0 +1 @@
+Subproject commit 6161526fc8a7dbcfa1147c190ebbf16e2ec1b866