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Merge up to 2.6.16-rc1

/* $Id: isdn_common.h,v 1.1.2.2 2004/01/12 22:37:19 keil Exp $
 *
 * header for Linux ISDN subsystem
 * common used functions and debugging-switches (linklevel).
 *
 * Copyright 1994-1999  by Fritz Elfert (fritz@isdn4linux.de)
 * Copyright 1995,96    by Thinking Objects Software GmbH Wuerzburg
 * Copyright 1995,96    by Michael Hipp (Michael.Hipp@student.uni-tuebingen.de)
 *
 * This software may be used and distributed according to the terms
 * of the GNU General Public License, incorporated herein by reference.
 *
 */

#undef  ISDN_DEBUG_MODEM_OPEN
#undef  ISDN_DEBUG_MODEM_IOCTL
#undef  ISDN_DEBUG_MODEM_WAITSENT
#undef  ISDN_DEBUG_MODEM_HUP
#undef  ISDN_DEBUG_MODEM_ICALL
#undef  ISDN_DEBUG_MODEM_DUMP
#undef  ISDN_DEBUG_MODEM_VOICE
#undef  ISDN_DEBUG_AT
#undef  ISDN_DEBUG_NET_DUMP
#undef  ISDN_DEBUG_NET_DIAL
#undef  ISDN_DEBUG_NET_ICALL

/* Prototypes */
extern void isdn_lock_drivers(void);
extern void isdn_unlock_drivers(void);
extern void isdn_free_channel(int di, int ch, int usage);
extern void isdn_all_eaz(int di, int ch);
extern int  isdn_command(isdn_ctrl *);
extern int  isdn_dc2minor(int di, int ch);
extern void isdn_info_update(void);
extern char *isdn_map_eaz2msn(char *msn, int di);
extern void isdn_timer_ctrl(int tf, int onoff);
extern void isdn_unexclusive_channel(int di, int ch);
extern int  isdn_getnum(char **);
extern int  isdn_readbchan(int, int, u_char *, u_char *, int, wait_queue_head_t *);
extern int  isdn_readbchan_tty(int, int, struct tty_struct *, int);
extern int  isdn_get_free_channel(int, int, int, int, int, char *);
extern int  isdn_writebuf_skb_stub(int, int, int, struct sk_buff *);
extern int  register_isdn(isdn_if * i);
extern int  isdn_msncmp( const char *,  const char *);
#if defined(ISDN_DEBUG_NET_DUMP) || defined(ISDN_DEBUG_MODEM_DUMP)
extern void isdn_dumppkt(char *, u_char *, int, int);
#endif