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kern_cons.c (1021) kern_cons.c (1549)
1/*
2 * Copyright (c) 1988 University of Utah.
3 * Copyright (c) 1991 The Regents of the University of California.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * the Systems Programming Group of the University of Utah Computer
8 * Science Department.

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36 * SUCH DAMAGE.
37 *
38 * from: @(#)cons.c 7.2 (Berkeley) 5/9/91
39 * $Id: cons.c,v 1.10 1994/01/23 19:17:17 davidg Exp $
40 */
41
42
43#include "sys/param.h"
1/*
2 * Copyright (c) 1988 University of Utah.
3 * Copyright (c) 1991 The Regents of the University of California.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * the Systems Programming Group of the University of Utah Computer
8 * Science Department.

--- 27 unchanged lines hidden (view full) ---

36 * SUCH DAMAGE.
37 *
38 * from: @(#)cons.c 7.2 (Berkeley) 5/9/91
39 * $Id: cons.c,v 1.10 1994/01/23 19:17:17 davidg Exp $
40 */
41
42
43#include "sys/param.h"
44#include <sys/systm.h>
44#include "sys/proc.h"
45#include "sys/user.h"
45#include "sys/proc.h"
46#include "sys/user.h"
46#include "sys/systm.h"
47#include "sys/buf.h"
48#include "sys/ioctl.h"
49#include "sys/tty.h"
50#include "sys/file.h"
51#include "sys/conf.h"
52#include "sys/vnode.h"
53#include "machine/stdarg.h"
54

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117 struct proc *p;
118{
119 struct vnode *vp = 0;
120
121 if (cn_tab == NULL)
122 return (0);
123
124 dev = cn_tab->cn_dev;
47#include "sys/buf.h"
48#include "sys/ioctl.h"
49#include "sys/tty.h"
50#include "sys/file.h"
51#include "sys/conf.h"
52#include "sys/vnode.h"
53#include "machine/stdarg.h"
54

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117 struct proc *p;
118{
119 struct vnode *vp = 0;
120
121 if (cn_tab == NULL)
122 return (0);
123
124 dev = cn_tab->cn_dev;
125 if ((vfinddev(dev, VCHR, &vp) == 0) && vcount(vp))
125 if (vfinddev(dev, VCHR, &vp) && vcount(vp))
126 return (0);
127
128 return ((*cdevsw[major(dev)].d_open)(dev, flag, mode, p));
129}
130
131int
132cnclose(dev, flag, mode, p)
133 dev_t dev;
134 int flag, mode;
135 struct proc *p;
136{
137 struct vnode *vp = 0;
138
139 if (cn_tab == NULL)
140 return (0);
141
142 dev = cn_tab->cn_dev;
126 return (0);
127
128 return ((*cdevsw[major(dev)].d_open)(dev, flag, mode, p));
129}
130
131int
132cnclose(dev, flag, mode, p)
133 dev_t dev;
134 int flag, mode;
135 struct proc *p;
136{
137 struct vnode *vp = 0;
138
139 if (cn_tab == NULL)
140 return (0);
141
142 dev = cn_tab->cn_dev;
143 if ((vfinddev(dev, VCHR, &vp) == 0) && vcount(vp))
143 if (vfinddev(dev, VCHR, &vp) && vcount(vp))
144 return (0);
145
146 return ((*cdevsw[major(dev)].d_close)(dev, flag, mode, p));
147}
148
149int
150cnread(dev, uio, flag)
151 dev_t dev;

--- 93 unchanged lines hidden --- 		144 return (0);
145
146 return ((*cdevsw[major(dev)].d_close)(dev, flag, mode, p));
147}
148
149int
150cnread(dev, uio, flag)
151 dev_t dev;

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