diff --git a/drivers/char/rio/func.h b/drivers/char/rio/func.h
new file mode 100644
index 0000000..e8f3860
--- /dev/null
+++ b/drivers/char/rio/func.h
@@ -0,0 +1,154 @@
+/*
+** -----------------------------------------------------------------------------
+**
+**  Perle Specialix driver for Linux
+**  Ported from existing RIO Driver for SCO sources.
+ *
+ *  (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
+ *
+ *      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.
+**
+**	Module		: func.h
+**	SID		: 1.3
+**	Last Modified	: 11/6/98 11:34:10
+**	Retrieved	: 11/6/98 11:34:21
+**
+**  ident @(#)func.h	1.3
+**
+** -----------------------------------------------------------------------------
+*/
+
+#ifndef __func_h_def
+#define __func_h_def
+
+#include <linux/kdev_t.h>
+
+#ifdef SCCS_LABELS
+#ifndef lint
+static char *_func_h_sccs_ = "@(#)func.h	1.3";
+#endif
+#endif
+
+/* rioboot.c */
+int RIOBootCodeRTA(struct rio_info *, struct DownLoad *);
+int RIOBootCodeHOST(struct rio_info *, register struct DownLoad *);
+int RIOBootCodeUNKNOWN(struct rio_info *, struct DownLoad *);
+void msec_timeout(struct Host *);
+int RIOBootRup(struct rio_info *, uint, struct Host *, struct PKT *);
+int RIOBootOk(struct rio_info *,struct Host *, ulong);
+int RIORtaBound(struct rio_info *, uint); 
+void FillSlot(int, int, uint, struct Host *);
+
+/* riocmd.c */
+int RIOFoadRta(struct Host *, struct Map *);
+int RIOZombieRta(struct Host *, struct Map *);
+int RIOCommandRta(struct rio_info *, uint, int (* func)( struct Host *, 
+								struct Map *));
+int RIOIdentifyRta(struct rio_info *, caddr_t); 
+int RIOKillNeighbour(struct rio_info *, caddr_t);
+int RIOSuspendBootRta(struct Host *, int, int);
+int RIOFoadWakeup(struct rio_info *);
+struct CmdBlk * RIOGetCmdBlk(void);
+void RIOFreeCmdBlk(struct CmdBlk *);
+int RIOQueueCmdBlk(struct Host *, uint, struct CmdBlk *);
+void RIOPollHostCommands(struct rio_info *, struct Host *);
+int RIOWFlushMark(int, struct CmdBlk *);
+int RIORFlushEnable(int, struct CmdBlk *);
+int RIOUnUse(int, struct CmdBlk *);
+void ShowPacket(uint, struct PKT *);
+
+/* rioctrl.c */
+int copyin(int, caddr_t, int);
+int riocontrol(struct rio_info *, dev_t,int,caddr_t,int); 
+int RIOPreemptiveCmd(struct rio_info *,struct Port *,uchar);
+
+/* rioinit.c */
+void rioinit(struct rio_info *, struct RioHostInfo *);
+void RIOInitHosts(struct rio_info *, struct RioHostInfo *);
+void RIOISAinit(struct rio_info *,int);
+int RIODoAT(struct rio_info *, int, int);
+caddr_t RIOCheckForATCard(int);
+int RIOAssignAT(struct rio_info *, int, caddr_t, int);
+int RIOBoardTest(paddr_t, caddr_t, uchar, int);
+void RIOAllocDataStructs(struct rio_info *);
+void RIOSetupDataStructs(struct rio_info *);
+int RIODefaultName(struct rio_info *, struct Host *, uint);
+struct rioVersion * RIOVersid(void);
+int RIOMapin(paddr_t, int, caddr_t *);
+void RIOMapout(paddr_t, long, caddr_t);
+void RIOHostReset(uint, volatile struct DpRam *, uint);
+
+/* riointr.c */
+void RIOTxEnable(char *);
+void RIOServiceHost(struct rio_info *, struct Host *, int);
+int riotproc(struct rio_info *, register struct ttystatics *, int, int);
+
+/* rioparam.c */
+int RIOParam(struct Port *, int, int, int);
+int RIODelay(struct Port *PortP, int);
+int RIODelay_ni(struct Port *PortP, int);
+void ms_timeout(struct Port *);
+int can_add_transmit(struct PKT **, struct Port *);
+void add_transmit(struct Port *);
+void put_free_end(struct Host *, struct PKT *);
+int can_remove_receive(struct PKT **, struct Port *);
+void remove_receive(struct Port *);
+
+/* rioroute.c */
+int RIORouteRup(struct rio_info *, uint, struct Host *, struct PKT *);
+void RIOFixPhbs(struct rio_info *, struct Host *, uint); 
+uint GetUnitType(uint);
+int RIOSetChange(struct rio_info *);
+int RIOFindFreeID(struct rio_info *, struct Host *, uint *, uint *);
+
+
+/* riotty.c */
+
+int riotopen(struct tty_struct * tty, struct file * filp);
+int riotclose(void  *ptr);
+int riotioctl(struct rio_info *, struct tty_struct *, register int, register caddr_t); 
+void ttyseth(struct Port *, struct ttystatics *, struct old_sgttyb *sg);
+
+/* riotable.c */
+int RIONewTable(struct rio_info *);
+int RIOApel(struct rio_info *);
+int RIODeleteRta(struct rio_info *, struct Map *);
+int RIOAssignRta(struct rio_info *, struct Map *);
+int RIOReMapPorts(struct rio_info *, struct Host *, struct Map *);
+int RIOChangeName(struct rio_info *, struct Map*);
+
+#if 0
+/* riodrvr.c */
+struct rio_info * rio_install(struct RioHostInfo *);
+int rio_uninstall(register struct rio_info *);
+int rio_open(struct rio_info *, int, struct file *);
+int rio_close(struct rio_info *, struct file *);
+int rio_read(struct rio_info *, struct file *, char *, int);
+int rio_write(struct rio_info *, struct file *	f, char *, int);
+int rio_ioctl(struct rio_info *, struct file *, int, char *);
+int rio_select(struct rio_info *, struct file *	f, int, struct sel *);
+int	rio_intr(char *);
+int rio_isr_thread(char  *);
+struct rio_info * rio_info_store( int cmd, struct rio_info * p);
+#endif
+
+extern int    rio_pcicopy(char *src, char *dst, int n);
+extern int rio_minor (struct tty_struct *tty);
+extern int rio_ismodem (struct tty_struct *tty);
+extern void rio_udelay (int usecs);
+
+extern void rio_start_card_running (struct Host * HostP);
+
+#endif	/* __func_h_def */