diff --git a/switch_uart_protocol.h b/switch_uart_protocol.h
new file mode 100644
index 0000000..8fc8d79
--- /dev/null
+++ b/switch_uart_protocol.h
@@ -0,0 +1,10 @@
+#pragma once
+
+#include <stdint.h>
+
+#include "switch_input.h"
+
+bool switch_uart_decode_input_frame(
+    const uint8_t* packet,
+    uint8_t length,
+    SwitchInputState* out_state);