diff --git a/include/linux/yam.h b/include/linux/yam.h
new file mode 100644
index 0000000..7fe2822
--- /dev/null
+++ b/include/linux/yam.h
@@ -0,0 +1,82 @@
+/*****************************************************************************/
+
+/*
+ *	yam.h  -- YAM radio modem driver.
+ *
+ *	Copyright (C) 1998 Frederic Rible F1OAT (frible@teaser.fr)
+ *	Adapted from baycom.c driver written by Thomas Sailer (sailer@ife.ee.ethz.ch)
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation; either version 2 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 General Public License
+ *	along with this program; if not, write to the Free Software
+ *	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *  Please note that the GPL allows you to use the driver, NOT the radio.
+ *  In order to use the radio, you need a license from the communications
+ *  authority of your country.
+ *
+ *
+ */
+
+/*****************************************************************************/
+
+#define SIOCYAMRESERVED	(0)
+#define SIOCYAMSCFG 	(1)	/* Set configuration */
+#define SIOCYAMGCFG 	(2)	/* Get configuration */
+#define SIOCYAMSMCS 	(3)	/* Set mcs data */
+
+#define YAM_IOBASE   (1 << 0)
+#define YAM_IRQ      (1 << 1)
+#define YAM_BITRATE  (1 << 2) /* Bit rate of radio port ->57600 */
+#define YAM_MODE     (1 << 3) /* 0=simplex 1=duplex 2=duplex+tempo */
+#define YAM_HOLDDLY  (1 << 4) /* duplex tempo (sec) */
+#define YAM_TXDELAY  (1 << 5) /* Tx Delay (ms) */
+#define YAM_TXTAIL   (1 << 6) /* Tx Tail  (ms) */
+#define YAM_PERSIST  (1 << 7) /* Persist  (ms) */
+#define YAM_SLOTTIME (1 << 8) /* Slottime (ms) */
+#define YAM_BAUDRATE (1 << 9) /* Baud rate of rs232 port ->115200 */
+
+#define YAM_MAXBITRATE  57600
+#define YAM_MAXBAUDRATE 115200
+#define YAM_MAXMODE     2
+#define YAM_MAXHOLDDLY  99
+#define YAM_MAXTXDELAY  999
+#define YAM_MAXTXTAIL   999
+#define YAM_MAXPERSIST  255
+#define YAM_MAXSLOTTIME 999
+
+#define YAM_FPGA_SIZE	5302
+
+struct yamcfg {
+	unsigned int mask;		/* Mask of commands */
+	unsigned int iobase;	/* IO Base of COM port */
+	unsigned int irq;		/* IRQ of COM port */
+	unsigned int bitrate;	/* Bit rate of radio port */
+	unsigned int baudrate;	/* Baud rate of the RS232 port */
+	unsigned int txdelay;	/* TxDelay */
+	unsigned int txtail;	/* TxTail */
+	unsigned int persist;	/* Persistence */
+	unsigned int slottime;	/* Slottime */
+	unsigned int mode;		/* mode 0 (simp), 1(Dupl), 2(Dupl+delay) */
+	unsigned int holddly;	/* PTT delay in FullDuplex 2 mode */
+};
+
+struct yamdrv_ioctl_cfg {
+	int cmd;
+	struct yamcfg cfg;
+};
+
+struct yamdrv_ioctl_mcs {
+	int cmd;
+	int bitrate;
+	unsigned char bits[YAM_FPGA_SIZE];
+};