diff --git a/freefare.h b/freefare.h
new file mode 100644
index 0000000..f7928e3
--- /dev/null
+++ b/freefare.h
@@ -0,0 +1,100 @@
+/*-
+ * Copyright (C) 2009, Romain Tartiere, Romuald Conty.
+ * 
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * 
+ * $Id: mifare_classic.h 88 2009-12-23 15:26:57Z rconty@il4p.fr $
+ */
+
+#ifndef __FREEFARE_H__
+#define __FREEFARE_H__
+
+#include <sys/types.h>
+
+#include <stdint.h>
+
+#include <nfc/nfc.h>
+
+struct mifare_classic_tag;
+typedef struct mifare_classic_tag *MifareClassicTag;
+
+typedef unsigned char MifareClassicBlock[16];
+
+typedef uint8_t MifareSectorNumber;
+typedef unsigned char MifareClassicBlockNumber;
+
+typedef enum { MFC_KEY_A, MFC_KEY_B } MifareClassicKeyType;
+typedef unsigned char MifareClassicKey[6];
+
+MifareClassicTag *mifare_classic_get_tags (nfc_device_t *device);
+void		 mifare_classic_free_tags (MifareClassicTag *tags);
+int		 mifare_classic_connect (MifareClassicTag tag);
+int		 mifare_classic_disconnect (MifareClassicTag tag);
+
+int		 mifare_classic_authenticate (MifareClassicTag tag, const MifareClassicBlockNumber block, const MifareClassicKey key, const MifareClassicKeyType key_type);
+int		 mifare_classic_read (MifareClassicTag tag, const MifareClassicBlockNumber block, MifareClassicBlock *data);
+int		 mifare_classic_init_value (MifareClassicTag tag, const MifareClassicBlockNumber block, const int32_t value, const MifareClassicBlockNumber adr);
+int		 mifare_classic_read_value (MifareClassicTag tag, const MifareClassicBlockNumber block, int32_t *value, MifareClassicBlockNumber *adr);
+int		 mifare_classic_write (MifareClassicTag tag, const MifareClassicBlockNumber block, const MifareClassicBlock data);
+
+int		 mifare_classic_increment (MifareClassicTag tag, const MifareClassicBlockNumber block, const uint32_t amount);
+int		 mifare_classic_decrement (MifareClassicTag tag, const MifareClassicBlockNumber block, const uint32_t amount);
+int		 mifare_classic_restore (MifareClassicTag tag, const MifareClassicBlockNumber block);
+int		 mifare_classic_transfer (MifareClassicTag tag, const MifareClassicBlockNumber block);
+
+int 		 mifare_classic_get_trailer_block_permission (MifareClassicTag tag, const MifareClassicBlockNumber block, const uint16_t permission, const MifareClassicKeyType key_type);
+int		 mifare_classic_get_data_block_permission (MifareClassicTag tag, const MifareClassicBlockNumber block, const unsigned char permission, const MifareClassicKeyType key_type);
+
+int		 mifare_classic_format_sector (MifareClassicTag tag, const MifareSectorNumber sector);
+void		 mifare_classic_trailer_block (MifareClassicBlock *block, const MifareClassicKey key_a, const uint8_t ab_0, const uint8_t ab_1, const uint8_t ab_2, const uint8_t ab_tb, const uint8_t gpb, const MifareClassicKey key_b);
+
+/* MIFARE Classic Access Bits */
+#define MCAB_R 0x8
+#define MCAB_W 0x4
+#define MCAB_D 0x2
+#define MCAB_I 0x1
+
+#define MCAB_READ_KEYA         0x400
+#define MCAB_WRITE_KEYA        0x100
+#define MCAB_READ_ACCESS_BITS  0x040
+#define MCAB_WRITE_ACCESS_BITS 0x010
+#define MCAB_READ_KEYB         0x004
+#define MCAB_WRITE_KEYB        0x001
+
+struct mad_aid {
+    uint8_t function_cluster_code;
+    uint8_t application_code;
+};
+typedef struct mad_aid MadAid;
+
+struct mad;
+typedef struct mad *Mad;
+
+Mad		 mad_new (uint8_t version);
+Mad		 mad_read (MifareClassicTag tag);
+int		 mad_write (MifareClassicTag tag, Mad mad, MifareClassicKey key_b_sector_00, MifareClassicKey key_b_sector_10);
+int		 mad_get_version (Mad mad);
+void		 mad_set_version (Mad mad, uint8_t version);
+MifareSectorNumber mad_get_card_publisher_sector(Mad mad);
+int		 mad_set_card_publisher_sector(Mad mad, MifareSectorNumber cps);
+int		 mad_get_aid(Mad mad, MifareSectorNumber sector, MadAid *aid);
+int		 mad_set_aid(Mad mad, MifareSectorNumber sector, MadAid aid);
+void		 mad_free (Mad mad);
+
+MifareSectorNumber *mifare_application_alloc (Mad mad, MadAid aid, size_t size);
+void		 mifare_application_free (Mad mad, MadAid aid);
+
+MifareSectorNumber *mifare_application_find (Mad mad, MadAid aid);
+
+#endif /* !__FREEFARE_H__ */