Change the kernel dev_t, representing a pointer to a specinfo structure,
[dragonfly.git] / sys / sys / snoop.h
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1/*
2 * Copyright (c) 1995 Ugen J.S.Antsilevich
3 *
4 * Redistribution and use in source forms, with and without modification,
5 * are permitted provided that this entire comment appears intact.
6 *
7 * Redistribution in binary form may occur without any restrictions.
8 * Obviously, it would be nice if you gave credit where credit is due
9 * but requiring it would be too onerous.
10 *
11 * This software is provided ``AS IS'' without any warranties of any kind.
12 *
13 * Snoop stuff.
14 *
15 * $FreeBSD: src/sys/sys/snoop.h,v 1.14.2.1 2002/03/11 01:23:05 dd Exp $
b13267a5 16 * $DragonFly: src/sys/sys/snoop.h,v 1.3 2006/09/10 01:26:40 dillon Exp $
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17 */
18
19#ifndef _SYS_SNOOP_H_
20#define _SYS_SNOOP_H_
21
22#include <sys/ioccom.h>
23
24/*
25 * Theese are snoop io controls
26 * SNPSTTY accepts 'struct snptty' as input.
27 * If ever type or unit set to -1,snoop device
28 * detached from its current tty.
29 */
30
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31#ifdef _KERNEL
32
33#define SNPSTTY _IOW('T', 90, udev_t)
34#define SNPGTTY _IOR('T', 89, udev_t)
35
36#else
37
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38#define SNPSTTY _IOW('T', 90, dev_t)
39#define SNPGTTY _IOR('T', 89, dev_t)
40
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41#endif
42
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43/*
44 * Theese values would be returned by FIONREAD ioctl
45 * instead of number of characters in buffer in case
46 * of specific errors.
47 */
48#define SNP_OFLOW -1
49#define SNP_TTYCLOSE -2
50#define SNP_DETACH -3
51
52#endif /* !_SYS_SNOOP_H_ */