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diff --git a/include/linux/istallion.h b/include/linux/istallion.h
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+/*****************************************************************************/
+
+/*
+ * istallion.h -- stallion intelligent multiport serial driver.
+ *
+ * Copyright (C) 1996-1998 Stallion Technologies
+ * Copyright (C) 1994-1996 Greg Ungerer.
+ *
+ * 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.
+ */
+
+#include <linux/version.h>
+
+/*****************************************************************************/
+#ifndef _ISTALLION_H
+#define _ISTALLION_H
+/*****************************************************************************/
+
+/*
+ * Define important driver constants here.
+ */
+#define STL_MAXBRDS 4
+#define STL_MAXPANELS 4
+#define STL_MAXPORTS 64
+#define STL_MAXCHANS (STL_MAXPORTS + 1)
+#define STL_MAXDEVS (STL_MAXBRDS * STL_MAXPORTS)
+
+
+/*
+ * Define a set of structures to hold all the board/panel/port info
+ * for our ports. These will be dynamically allocated as required at
+ * driver initialization time.
+ */
+
+/*
+ * Port and board structures to hold status info about each object.
+ * The board structure contains pointers to structures for each port
+ * connected to it. Panels are not distinguished here, since
+ * communication with the slave board will always be on a per port
+ * basis.
+ */
+typedef struct {
+ unsigned long magic;
+ int portnr;
+ int panelnr;
+ int brdnr;
+ unsigned long state;
+ int devnr;
+ int flags;
+ int baud_base;
+ int custom_divisor;
+ int close_delay;
+ int closing_wait;
+ int refcount;
+ int openwaitcnt;
+ int rc;
+ int argsize;
+ void *argp;
+ unsigned int rxmarkmsk;
+ struct tty_struct *tty;
+ wait_queue_head_t open_wait;
+ wait_queue_head_t close_wait;
+ wait_queue_head_t raw_wait;
+ struct work_struct tqhangup;
+ asysigs_t asig;
+ unsigned long addr;
+ unsigned long rxoffset;
+ unsigned long txoffset;
+ unsigned long sigs;
+ unsigned long pflag;
+ unsigned int rxsize;
+ unsigned int txsize;
+ unsigned char reqbit;
+ unsigned char portidx;
+ unsigned char portbit;
+} stliport_t;
+
+/*
+ * Use a structure of function pointers to do board level operations.
+ * These include, enable/disable, paging shared memory, interrupting, etc.
+ */
+typedef struct stlibrd {
+ unsigned long magic;
+ int brdnr;
+ int brdtype;
+ int state;
+ int nrpanels;
+ int nrports;
+ int nrdevs;
+ unsigned int iobase;
+ int iosize;
+ unsigned long memaddr;
+ void *membase;
+ int memsize;
+ int pagesize;
+ int hostoffset;
+ int slaveoffset;
+ int bitsize;
+ int enabval;
+ int panels[STL_MAXPANELS];
+ int panelids[STL_MAXPANELS];
+ void (*init)(struct stlibrd *brdp);
+ void (*enable)(struct stlibrd *brdp);
+ void (*reenable)(struct stlibrd *brdp);
+ void (*disable)(struct stlibrd *brdp);
+ char *(*getmemptr)(struct stlibrd *brdp, unsigned long offset, int line);
+ void (*intr)(struct stlibrd *brdp);
+ void (*reset)(struct stlibrd *brdp);
+ stliport_t *ports[STL_MAXPORTS];
+} stlibrd_t;
+
+
+/*
+ * Define MAGIC numbers used for above structures.
+ */
+#define STLI_PORTMAGIC 0xe671c7a1
+#define STLI_BOARDMAGIC 0x4bc6c825
+
+/*****************************************************************************/
+#endif