1.\" -*- nroff -*- 2.\" 3.\" Copyright (c) 2004 M. Warner Losh. 4.\" 5.\" All rights reserved. 6.\" 7.\" This program is free software. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR 19.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT, 22.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28.\" 29.\" $FreeBSD: src/share/man/man9/BUS_ADD_CHILD.9,v 1.4 2005/01/21 08:36:40 ru Exp $ 30.\" 31.Dd December 20, 2009 32.Dt BUS_ADD_CHILD 9 33.Os 34.Sh NAME 35.Nm BUS_ADD_CHILD 36.Nd "add a device node to the tree with a given priority" 37.Sh SYNOPSIS 38.In sys/param.h 39.In sys/bus.h 40.Ft int 41.Fn BUS_ADD_CHILD "device_t parent" "device_t child" "int order" "const char *name" "int unit" 42.Sh DESCRIPTION 43The 44.Fn BUS_ADD_CHILD 45method 46is used by the driver identify routine to add devices to the tree. 47Please see 48.Xr device_add_child 9 49for more details. 50The interface is similar to 51.Xr device_add_child 9 52however, the bus' 53.Fn BUS_ADD_CHILD 54is called. 55.Pp 56Busses implementing 57.Fn BUS_ADD_CHILD 58should insert the device into the tree using 59.Xr device_add_child 9 60before adding things such as their own ivars and resource lists to the device. 61.Sh RETURN VALUES 62The 63.Fn BUS_ADD_CHILD 64method returns 65.Vt device_t 66added to the tree, or 67.Dv NULL . 68.Sh SEE ALSO 69.Xr device 9 , 70.Xr device_add_child 9 , 71.Xr driver 9 72.Sh AUTHORS 73This manual page was written by 74.An M. Warner Losh . 75