usr/src/sys/kern/tty_conf.c

/*-
 * Copyright (c) 1982, 1986, 1991 The Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *      @(#)tty_conf.c  7.6 (Berkeley) %G%
 */

#include "param.h"
#include "systm.h"
#include "buf.h"
#include "ioctl.h"
#include "tty.h"
#include "conf.h"

int     enodev();
int     nullop();

int     ttyopen(),ttylclose(),ttread(),ttwrite(),nullioctl(),ttstart();
int     ttymodem(), nullmodem(), ttyinput();

#include "tb.h"
#if NTB > 0
int     tbopen(),tbclose(),tbread(),tbinput(),tbioctl();
#endif

#include "sl.h"
#if NSL > 0
int     slopen(),slclose(),slinput(),sltioctl(),slstart();
#endif


struct  linesw linesw[] =
{
        ttyopen, ttylclose, ttread, ttwrite, nullioctl,
        ttyinput, enodev, nullop, ttstart, ttymodem,    /* 0- termios */

        enodev, enodev, enodev, enodev, enodev,         /* 1- defunct */
        enodev, enodev, enodev, enodev, enodev,

        enodev, enodev, enodev, enodev, enodev,         /* 2- defunct */
        enodev, enodev, enodev, enodev, enodev,
#if NTB > 0
        tbopen, tbclose, tbread, enodev, tbioctl,
        tbinput, enodev, nullop, ttstart, nullmodem,    /* 3- TABLDISC */
#else
        enodev, enodev, enodev, enodev, enodev,
        enodev, enodev, enodev, enodev, enodev,
#endif
#if NSL > 0
        slopen, slclose, enodev, enodev, sltioctl,
        slinput, enodev, nullop, slstart, nullmodem,    /* 4- SLIPDISC */
#else
        enodev, enodev, enodev, enodev, enodev,
        enodev, enodev, enodev, enodev, enodev,
#endif
};

int     nldisp = sizeof (linesw) / sizeof (linesw[0]);

/*
 * Do nothing specific version of line
 * discipline specific ioctl command.
 */
/*ARGSUSED*/
nullioctl(tp, cmd, data, flags)
        struct tty *tp;
        char *data;
        int flags;
{

#ifdef lint
        tp = tp; data = data; flags = flags;
#endif
        return (-1);
}