i2c-dev.h
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- /*
- i2c-dev.h - i2c-bus driver, char device interface
- Copyright (C) 1995-97 Simon G. Vogl
- Copyright (C) 1998-99 Frodo Looijaard <frodol@dds.nl>
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- /* $Id: i2c-dev.h,v 1.13 2003/01/21 08:08:16 kmalkki Exp $ */
- #ifndef _LINUX_I2C_DEV_H
- #define _LINUX_I2C_DEV_H
- #include <linux/types.h>
- #include <linux/compiler.h>
- /* Some IOCTL commands are defined in <linux/i2c.h> */
- /* Note: 10-bit addresses are NOT supported! */
- /* This is the structure as used in the I2C_SMBUS ioctl call */
- struct i2c_smbus_ioctl_data {
- __u8 read_write;
- __u8 command;
- __u32 size;
- union i2c_smbus_data __user *data;
- };
- /* This is the structure as used in the I2C_RDWR ioctl call */
- struct i2c_rdwr_ioctl_data {
- struct i2c_msg __user *msgs; /* pointers to i2c_msgs */
- __u32 nmsgs; /* number of i2c_msgs */
- };
- #define I2C_RDRW_IOCTL_MAX_MSGS 42
- #endif /* _LINUX_I2C_DEV_H */