'\" t
.\"     Title: subsys_virtual_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 "SUBSYS_VIRTUAL_REGIS" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Device drivers infrastructure"
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.SH "NAME"
subsys_virtual_register \- register a subsystem at /sys/devices/virtual/
.SH "SYNOPSIS"
.HP \w'int\ subsys_virtual_register('u
.BI "int subsys_virtual_register(struct\ bus_type\ *\ " "subsys" ", const\ struct\ attribute_group\ **\ " "groups" ");"
.SH "ARGUMENTS"
.PP
\fIsubsys\fR
.RS 4
virtual subsystem
.RE
.PP
\fIgroups\fR
.RS 4
default attributes for the root device
.RE
.SH "DESCRIPTION"
.PP
All \*(Aqvirtual\*(Aq subsystems have a /sys/devices/system/<name> root device with the name of the subystem\&. The root device can carry subsystem\-wide attributes\&. All registered devices are below this single root device\&. There\*(Aqs no restriction on device naming\&. This is for kernel software constructs which need sysfs interface\&.
.SH "COPYRIGHT"
.br