comedi_compat32.h revision 0a85b6f0ab0d2edb0d41b32697111ce0e4f43496 
1/*
2    comedi/comedi_compat32.h
3    32-bit ioctl compatibility for 64-bit comedi kernel module.
4
5    Author: Ian Abbott, MEV Ltd. <abbotti@mev.co.uk>
6    Copyright (C) 2007 MEV Ltd. <http://www.mev.co.uk/>
7
8    COMEDI - Linux Control and Measurement Device Interface
9    Copyright (C) 1997-2007 David A. Schleef <ds@schleef.org>
10
11    This program is free software; you can redistribute it and/or modify
12    it under the terms of the GNU General Public License as published by
13    the Free Software Foundation; either version 2 of the License, or
14    (at your option) any later version.
15
16    This program is distributed in the hope that it will be useful,
17    but WITHOUT ANY WARRANTY; without even the implied warranty of
18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19    GNU General Public License for more details.
20
21    You should have received a copy of the GNU General Public License
22    along with this program; if not, write to the Free Software
23    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24
25*/
26
27#ifndef _COMEDI_COMPAT32_H
28#define _COMEDI_COMPAT32_H
29
30#include <linux/compat.h>
31#include <linux/fs.h>		/* For HAVE_COMPAT_IOCTL and HAVE_UNLOCKED_IOCTL */
32
33#ifdef CONFIG_COMPAT
34
35#ifdef HAVE_COMPAT_IOCTL
36
37extern long comedi_compat_ioctl(struct file *file, unsigned int cmd,
38				unsigned long arg);
39#define comedi_register_ioctl32() do {} while (0)
40#define comedi_unregister_ioctl32() do {} while (0)
41
42#else /* HAVE_COMPAT_IOCTL */
43
44#define comedi_compat_ioctl 0	/* NULL */
45extern void comedi_register_ioctl32(void);
46extern void comedi_unregister_ioctl32(void);
47
48#endif /* HAVE_COMPAT_IOCTL */
49
50#else /* CONFIG_COMPAT */
51
52#define comedi_compat_ioctl 0	/* NULL */
53#define comedi_register_ioctl32() do {} while (0)
54#define comedi_unregister_ioctl32() do {} while (0)
55
56#endif /* CONFIG_COMPAT */
57
58#endif /* _COMEDI_COMPAT32_H */
59