Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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/* $Id: i2c-dev.h,v 1.13 2003/01/21 08:08:16 kmalkki Exp $ */
23
24#ifndef _LINUX_I2C_DEV_H
25#define _LINUX_I2C_DEV_H
26
27#include <linux/types.h>
28#include <linux/compiler.h>
29
30/* Some IOCTL commands are defined in <linux/i2c.h> */
31/* Note: 10-bit addresses are NOT supported! */
32
33/* This is the structure as used in the I2C_SMBUS ioctl call */
34struct i2c_smbus_ioctl_data {
35 __u8 read_write;
36 __u8 command;
37 __u32 size;
38 union i2c_smbus_data __user *data;
39};
40
41/* This is the structure as used in the I2C_RDWR ioctl call */
42struct i2c_rdwr_ioctl_data {
43 struct i2c_msg __user *msgs; /* pointers to i2c_msgs */
44 __u32 nmsgs; /* number of i2c_msgs */
45};
46
47#define I2C_RDRW_IOCTL_MAX_MSGS 42
48
49#endif /* _LINUX_I2C_DEV_H */