int gemtag_auth_mifare_key(struct gemtag_handle *gh,
unsigned char *key6,int sector);
int gemtag_read16(struct gemtag_handle *gh,int sector,unsigned char *data);
int gemtag_auth_mifare_key(struct gemtag_handle *gh,
unsigned char *key6,int sector);
int gemtag_read16(struct gemtag_handle *gh,int sector,unsigned char *data);