[PATCH] I2C: add i2c sensor_device_attribute and macros

/*

 *  i2c-sysfs.h - i2c chip driver sysfs defines

 *

 *  Copyright (C) 2005 Yani Ioannou <yani.ioannou@gmail.com>

 *

 *  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_SYSFS_H

#define _LINUX_I2C_SYSFS_H

struct sensor_device_attribute{

	struct device_attribute dev_attr;

	int index;

};

#define to_sensor_dev_attr(_dev_attr) \

	container_of(_dev_attr, struct sensor_device_attribute, dev_attr)

#define SENSOR_DEVICE_ATTR(_name,_mode,_show,_store,_index)	\

struct sensor_device_attribute sensor_dev_attr_##_name = {	\

	.dev_attr =	__ATTR(_name,_mode,_show,_store),	\

	.index =	_index,					\

}

#endif /* _LINUX_I2C_SYSFS_H */