a339dcccb0
Remove stray All Rights Reserved and other non-license stuff. Make sure all copyrights have year.
86 lines
2.7 KiB
Groff
86 lines
2.7 KiB
Groff
.\" -*- nroff -*-
|
|
.\"
|
|
.\" Copyright (c) 2004 M. Warner Losh <imp@FreeBSD.org>
|
|
.\"
|
|
.\" 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, 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 DEVELOPERS ``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 DEVELOPERS 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.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd April 8, 2018
|
|
.Dt BUS_ADD_CHILD 9
|
|
.Os
|
|
.Sh NAME
|
|
.Nm BUS_ADD_CHILD
|
|
.Nd "add a device node to the tree with a given priority"
|
|
.Sh SYNOPSIS
|
|
.In sys/param.h
|
|
.In sys/bus.h
|
|
.Ft device_t
|
|
.Fn BUS_ADD_CHILD "device_t dev" "int order" "const char *name" "int unit"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn BUS_ADD_CHILD
|
|
method
|
|
is used by the driver identify routine to add devices to the tree.
|
|
It can also be used to add children to buses that implement this
|
|
routine in other contexts, although the behavior is bus specific.
|
|
Please see
|
|
.Xr device_add_child 9
|
|
for more details.
|
|
The interface is the same as
|
|
.Xr device_add_child 9
|
|
however, the bus'
|
|
.Fn BUS_ADD_CHILD
|
|
is called.
|
|
.Pp
|
|
Buses implementing
|
|
.Fn BUS_ADD_CHILD
|
|
should insert the device into the tree using
|
|
.Xr device_add_child 9
|
|
before adding things such as their own ivars and resource lists to the device.
|
|
.Fn BUS_ADD_CHILD
|
|
is not called by
|
|
.Xr device_add_child 9 .
|
|
.Fn BUS_ADD_CHILD
|
|
instead calls
|
|
.Xr device_add_child 9 .
|
|
.Pp
|
|
A panic will result when called for a bus that does not implement
|
|
.Fn BUS_ADD_CHILD .
|
|
Some buses require a special bus-specific routine to be called instead
|
|
of
|
|
.Fn BUS_ADD_CHILD .
|
|
.Sh RETURN VALUES
|
|
The
|
|
.Fn BUS_ADD_CHILD
|
|
method returns
|
|
.Vt device_t
|
|
added to the tree, or
|
|
.Dv NULL
|
|
to indicate failure.
|
|
.Sh SEE ALSO
|
|
.Xr device 9 ,
|
|
.Xr device_add_child 9 ,
|
|
.Xr driver 9
|
|
.Sh AUTHORS
|
|
This manual page was written by
|
|
.An M. Warner Losh .
|