2004-05-13 20:28:18 +00:00
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.\" -*- nroff -*-
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.\"
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.\" Copyright (c) 2004 M. Warner Losh.
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.\"
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.\" All rights reserved.
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.\"
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.\" This program is free software.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd May 13, 2004
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.Dt BUS_ADD_CHILD 9
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.Os
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.Sh NAME
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.Nm BUS_ADD_CHILD
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2004-07-07 07:56:58 +00:00
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.Nd "add a device node to the tree with a given priority"
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2004-05-13 20:28:18 +00:00
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.Sh SYNOPSIS
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.In sys/param.h
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.In sys/bus.h
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.Ft int
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.Fn BUS_ADD_CHILD "device_t dev" "int order" "const char *name" "int unit"
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.Sh DESCRIPTION
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2004-07-07 07:56:58 +00:00
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The
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.Fn BUS_ADD_CHILD
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method
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is used by the driver identify routine to add devices to the tree.
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2004-05-13 20:28:18 +00:00
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Please see
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.Xr device_add_child 9
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for more details.
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2004-05-13 20:54:49 +00:00
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The interface is the same as
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2004-07-07 07:56:58 +00:00
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.Xr device_add_child 9
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2004-05-13 20:54:49 +00:00
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however, the bus'
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2004-07-07 07:56:58 +00:00
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.Fn BUS_ADD_CHILD
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2004-05-13 20:54:49 +00:00
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is called.
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.Pp
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Busses implementing
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2004-07-07 07:56:58 +00:00
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.Fn BUS_ADD_CHILD
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2004-05-13 20:54:49 +00:00
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should insert the device into the tree using
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2004-07-07 07:56:58 +00:00
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.Xr device_add_child 9
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2004-05-13 20:54:49 +00:00
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before adding things such as their own ivars and resource lists to the device.
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2004-05-13 20:28:18 +00:00
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.Sh RETURN VALUES
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2004-07-07 07:56:58 +00:00
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The
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.Fn BUS_ADD_CHILD
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method returns
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.Vt device_t
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added to the tree, or
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.Dv NULL .
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2005-01-21 08:36:40 +00:00
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.Sh SEE ALSO
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.Xr device 9 ,
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.Xr device_add_child 9 ,
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.Xr driver 9
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2004-05-13 20:28:18 +00:00
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.Sh AUTHORS
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This manual page was written by
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.An M. Warner Losh .
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