diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..1efee57
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "tinyusb"]
+	path = tinyusb
+	url = git@github.com:hathach/tinyusb.git
diff --git a/tinyusb b/tinyusb
new file mode 160000
index 0000000..5efad74
--- /dev/null
+++ b/tinyusb
@@ -0,0 +1 @@
+Subproject commit 5efad7412ffef0bb7eb08beea29b3b06b04cfb6e