'\" t
.\"     Title: __root_device_register
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: Device drivers infrastructure
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "__ROOT_DEVICE_REGIST" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Device drivers infrastructure"
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.SH "NAME"
__root_device_register \- allocate and register a root device
.SH "SYNOPSIS"
.HP \w'struct\ device\ *\ __root_device_register('u
.BI "struct device * __root_device_register(const\ char\ *\ " "name" ", struct\ module\ *\ " "owner" ");"
.SH "ARGUMENTS"
.PP
\fIname\fR
.RS 4
root device name
.RE
.PP
\fIowner\fR
.RS 4
owner module of the root device, usually THIS_MODULE
.RE
.SH "DESCRIPTION"
.PP
This function allocates a root device and registers it using
\fBdevice_register\fR\&. In order to free the returned device, use
\fBroot_device_unregister\fR\&.
.PP
Root devices are dummy devices which allow other devices to be grouped under /sys/devices\&. Use this function to allocate a root device and then use it as the parent of any device which should appear under /sys/devices/{name}
.PP
The /sys/devices/{name} directory will also contain a \*(Aqmodule\*(Aq symlink which points to the
\fIowner\fR
directory in sysfs\&.
.PP
Returns
struct device
pointer on success, or
\fBERR_PTR\fR
on error\&.
.SH "NOTE"
.PP
You probably want to use
\fBroot_device_register\fR\&.
.SH "COPYRIGHT"
.br