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/*
* /driver/sensors/sensors_core.c
*
* Copyright (C) 2011 Samsung Electronics Co.Ltd
*
* 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.
*/
#include <linux/module.h>
#include <linux/device.h>
#include <linux/list.h>
#include <linux/err.h>
#include <linux/sensor/sensors_core.h>
struct class *sensors_class;
/**
* sensors_classdev_register - create new sensor device in sensors_class.
* @dev: The device to register.
*/
struct device *sensors_classdev_register(char *sensors_name)
{
struct device *dev;
int retval = -ENODEV;
dev = device_create(sensors_class, NULL, 0,
NULL, "%s", sensors_name);
if (IS_ERR(dev))
return ERR_PTR(retval);
printk(KERN_INFO "Registered sensors device: %s\n", sensors_name);
return dev;
}
EXPORT_SYMBOL_GPL(sensors_classdev_register);
/**
* sensors_classdev_unregister - unregisters a object of sensor device.
*
*/
void sensors_classdev_unregister(struct device *dev)
{
device_unregister(dev);
}
EXPORT_SYMBOL_GPL(sensors_classdev_unregister);
static int __init sensors_class_init(void)
{
sensors_class = class_create(THIS_MODULE, "sensors");
if (IS_ERR(sensors_class)) {
pr_err("Failed to create class(sensors)!\n");
return PTR_ERR(sensors_class);
}
return 0;
}
static void __exit sensors_class_exit(void)
{
class_destroy(sensors_class);
}
subsys_initcall(sensors_class_init);
module_exit(sensors_class_exit);
MODULE_DESCRIPTION("Universal sensors core class");
MODULE_AUTHOR("Samsung Electronics");
MODULE_LICENSE("GPL");
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