diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..cd482f2
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "knx"]
+	path = knx
+	url = https://github.com/thelsing/knx.git
diff --git a/knx b/knx
new file mode 160000
index 0000000..96eea4f
--- /dev/null
+++ b/knx
@@ -0,0 +1 @@
+Subproject commit 96eea4ffe87876ded4178a1b025a91943ddfc9c9