-extern int hitag2_init(void);
-extern int hitag2_handle_command(const char* data, const int length, hitag2_response_callback_t cb, void *cb_cookie);
+void SnoopHitag(uint32_t type);
+void SimulateHitagTag(bool tag_mem_supplied, uint8_t* data);
+void ReaderHitag(hitag_function htf, hitag_data* htd);
+void WriterHitag(hitag_function htf, hitag_data* htd, int page);