Hi! librfid does not compile if I define DEBUG_LIBRFID (ifdef switch at: rfid.h) since it misses the rfid_hexdump funcion, which is declared only if LIBRFID_DEBUG is defined (ifdef switch at: rfid.c). I guess the two switches should be the same, it is only a mixup(?), so this email is kind of a bug report :O Cheers, Mate