0a3e7eeabc
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>
37 lines
1.3 KiB
C
37 lines
1.3 KiB
C
/*
|
|
* 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 */
|