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Diffstat (limited to 'sys/compat/linuxkpi/common/include/linux/miscdevice.h')
-rw-r--r--sys/compat/linuxkpi/common/include/linux/miscdevice.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/miscdevice.h b/sys/compat/linuxkpi/common/include/linux/miscdevice.h
new file mode 100644
index 000000000000..96d8fe7f2dad
--- /dev/null
+++ b/sys/compat/linuxkpi/common/include/linux/miscdevice.h
@@ -0,0 +1,76 @@
+/*-
+ * 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_ */