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/*-
* Copyright (c) 2010 Isilon Systems, Inc.
* Copyright (c) 2010 iX Systems, Inc.
* Copyright (c) 2010 Panasas, Inc.
* Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _LINUX_MISCDEVICE_H_
#define _LINUX_MISCDEVICE_H_
#define MISC_DYNAMIC_MINOR -1
#include <linux/device.h>
#include <linux/cdev.h>
struct miscdevice {
const char *name;
struct device *this_device;
const struct file_operations *fops;
struct cdev *cdev;
int minor;
const char *nodename;
umode_t mode;
};
extern struct class miscclass;
static inline int
misc_register(struct miscdevice *misc)
{
misc->this_device = device_create(&miscclass, &linux_rootdev, 0, misc,
misc->name);
misc->cdev = cdev_alloc();
if (misc->cdev == NULL)
return -ENOMEM;
misc->cdev->owner = THIS_MODULE;
misc->cdev->ops = misc->fops;
kobject_set_name(&misc->cdev->kobj, misc->name);
if (cdev_add(misc->cdev, misc->this_device->devt, 1))
return -EINVAL;
return (0);
}
static inline int
misc_deregister(struct miscdevice *misc)
{
device_destroy(&miscclass, misc->this_device->devt);
cdev_del(misc->cdev);
return (0);
}
#endif /* _LINUX_MISCDEVICE_H_ */
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