[PATCH] I2C: add i2c sensor_device_attribute and macros
This patch creates a new header with a potential standard i2c sensor attribute type (which simply includes an int representing the sensor number/index) and the associated macros, SENSOR_DEVICE_ATTR to define a static attribute and to_sensor_dev_attr to get a sensor_device_attribute reference from an embedded device_attribute reference. Signed-off-by: Yani Ioannou <yani.ioannou@gmail.com>
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include/linux/i2c-sysfs.h
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include/linux/i2c-sysfs.h
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/*
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* i2c-sysfs.h - i2c chip driver sysfs defines
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*
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* Copyright (C) 2005 Yani Ioannou <yani.ioannou@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef _LINUX_I2C_SYSFS_H
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#define _LINUX_I2C_SYSFS_H
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struct sensor_device_attribute{
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struct device_attribute dev_attr;
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int index;
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};
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#define to_sensor_dev_attr(_dev_attr) \
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container_of(_dev_attr, struct sensor_device_attribute, dev_attr)
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#define SENSOR_DEVICE_ATTR(_name,_mode,_show,_store,_index) \
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struct sensor_device_attribute sensor_dev_attr_##_name = { \
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.dev_attr = __ATTR(_name,_mode,_show,_store), \
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.index = _index, \
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}
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#endif /* _LINUX_I2C_SYSFS_H */
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