diff --git a/platform/lwip/README.md b/platform/lwip/README.md
index e69de29bb..e17b83c86 100644
--- a/platform/lwip/README.md
+++ b/platform/lwip/README.md
@@ -0,0 +1,5 @@
+# lwIP Support for BTstack
+
+Contents:
+- bnep_lwip contains an adapter to forward packets between lwIP and BNEP
+- port contains a NO_SYS == 1 / bare metal configuration to use lwIP with BTstack on the same thread