-*- nroff -*-
Copyright (c) 2004 M. Warner Losh.
All rights reserved.
This program is free software.
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 n sys/param.h n 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.
Copyright (c) 2004 M. Warner Losh.
All rights reserved.
This program is free software.
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 n sys/param.h n 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.
p 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 .
p 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 .