diff --git a/armsrc/hitag2.h b/armsrc/hitag2.h
new file mode 100644
index 00000000..985b6796
--- /dev/null
+++ b/armsrc/hitag2.h
@@ -0,0 +1,10 @@
+/*
+ * Hitag2 emulation public interface
+ * 
+ * (c) 2009 Henryk Plötz <henryk@ploetzli.ch>
+ */
+
+typedef int (*hitag2_response_callback_t)(const char* response_data, const int response_length, const int fdt, void *cb_cookie);
+
+extern int hitag2_init(void);
+extern int hitag2_handle_command(const char* data, const int length, hitag2_response_callback_t cb, void *cb_cookie);