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/*
* cyber - Add CYBER to your system
* Copyright (C) 2017 Felix Morgner
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
*/
#include "cyber.h"
#include "cyber_device.h"
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/version.h>
extern struct cyber_device device;
static ssize_t available_show(struct class * class, struct class_attribute * attribute, char * __user buffer)
{
return sprintf(buffer, "infinite\n");
}
static CLASS_ATTR_RO(available);
static ssize_t storage_technology_show(struct class * class, struct class_attribute * attribute, char * __user buffer)
{
return sprintf(buffer, "condensed di-hydrogen-monoxide\n");
}
static CLASS_ATTR_RO(storage_technology);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(6,2,0)
static int cyber_device_handle_uevent(struct device const * kernelDevice, struct kobj_uevent_env * environment)
#else
static int cyber_device_handle_uevent(struct device * kernelDevice, struct kobj_uevent_env * environment)
#endif
{
add_uevent_var(environment, "DEVMODE=%#o", 0666);
return 0;
}
int cyber_device_init_device_class(void)
{
int error = 0;
device.class.name = CLS_NAME;
device.class.owner = THIS_MODULE;
device.class.dev_uevent = cyber_device_handle_uevent;
if((error = class_register(&device.class)))
{
printk(KERN_ALERT DEV_NAME ": Failed to register CYBER device class!\n");
}
if((error = class_create_file(&device.class, &class_attr_available)) ||
(error = class_create_file(&device.class, &class_attr_storage_technology)))
{
printk(KERN_ALERT DEV_NAME ": Failed to register sysfs CYBER attributes!\n");
}
return error;
}
void cyber_device_shutdown_device_class(void)
{
class_unregister(&device.class);
}
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