diff --git a/.gitmodules b/.gitmodules
index 19b3794..3f62356 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -28,3 +28,12 @@
 [submodule "extras/crc_generic/crc_lib"]
 	path = extras/crc_generic/crc_lib
 	url = https://github.com/Zaltora/crc_generic_lib.git
+[submodule "extras/kt0803l"]
+	path = extras/kt0803l
+	url = https://github.com/ccbruce0812/kt0803l.git
+[submodule "extras/rda5807m"]
+	path = extras/rda5807m
+	url = https://github.com/ccbruce0812/rda5807m.git
+[submodule "examples/rda5807m_test"]
+	path = examples/rda5807m_test
+	url = https://github.com/ccbruce0812/rda5807m_test.git
diff --git a/examples/rda5807m_test b/examples/rda5807m_test
new file mode 160000
index 0000000..439b9fa
--- /dev/null
+++ b/examples/rda5807m_test
@@ -0,0 +1 @@
+Subproject commit 439b9fa3dfd8ea29cfef60184889ea461f56a7d7
diff --git a/extras/kt0803l b/extras/kt0803l
new file mode 160000
index 0000000..32f7a13
--- /dev/null
+++ b/extras/kt0803l
@@ -0,0 +1 @@
+Subproject commit 32f7a131390d2f73f5260fa383383f1fae0e96db
diff --git a/extras/rda5807m b/extras/rda5807m
new file mode 160000
index 0000000..11b88af
--- /dev/null
+++ b/extras/rda5807m
@@ -0,0 +1 @@
+Subproject commit 11b88afb49bc484e96e7f9f2fa138dd27df364f4