[net-next-2.6.git] / include / linux / i2c-dev.h

/*
    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.
*/

#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 */
Commit	Line	Data
1da177e4 LT	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
1da177e4 LT	22	#ifndef _LINUX_I2C_DEV_H
	23	#define _LINUX_I2C_DEV_H
	24
	25	#include <linux/types.h>
3607d1df	26	#include <linux/compiler.h>
1da177e4 LT	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 */
	32	struct 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 */
	40	struct 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 */