1/*
2    i2c-dev.h - i2c-bus driver, char device interface
3
4    Copyright (C) 1995-97 Simon G. Vogl
5    Copyright (C) 1998-99 Frodo Looijaard <frodol@dds.nl>
6
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 2 of the License, or
10    (at your option) any later version.
11
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16
17    You should have received a copy of the GNU General Public License
18    along with this program; if not, write to the Free Software
19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20*/
21
22#ifndef _LINUX_I2C_DEV_H
23#define _LINUX_I2C_DEV_H
24
25#include <linux/types.h>
26#include <linux/compiler.h>
27
28/* Some IOCTL commands are defined in <linux/i2c.h> */
29/* Note: 10-bit addresses are NOT supported! */
30
31/* This is the structure as used in the I2C_SMBUS ioctl call */
32struct i2c_smbus_ioctl_data {
33	__u8 read_write;
34	__u8 command;
35	__u32 size;
36	union i2c_smbus_data __user *data;
37};
38
39/* This is the structure as used in the I2C_RDWR ioctl call */
40struct i2c_rdwr_ioctl_data {
41	struct i2c_msg __user *msgs;	/* pointers to i2c_msgs */
42	__u32 nmsgs;			/* number of i2c_msgs */
43};
44
45#define  I2C_RDRW_IOCTL_MAX_MSGS	42
46
47#endif /* _LINUX_I2C_DEV_H */
48