#ifndef _MIFARE_CLASSIC_H
+#include <librfid/rfid_protocol.h>
+
#define MIFARE_CL_KEYA_DEFAULT "\xa0\xa1\xa2\xa3\xa4\xa5"
#define MIFARE_CL_KEYB_DEFAULT "\xb0\xb1\xb2\xb3\xb4\xb5"
#ifdef __LIBRFID__
-extern struct rfid_protocol rfid_protocol_mfcl;
+extern const struct rfid_protocol rfid_protocol_mfcl;
#define MIFARE_CL_CMD_WRITE16 0xA0