BUS_RESCAN.9 revision 367457
-*- nroff -*-
Copyright (c) 2016 John H. Baldwin <jhb@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 AUTHOR AND CONTRIBUTORS ``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 AUTHOR OR CONTRIBUTORS 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: stable/11/share/man/man9/BUS_RESCAN.9 367457 2020-11-07 18:10:59Z dim $
.Dd April 27, 2016 .Dt BUS_RESCAN 9 .Os .Sh NAME .Nm BUS_RESCAN .Nd "rescan a bus checking for devices that have been added or removed" .Sh SYNOPSIS n sys/param.h n sys/bus.h .Ft void .Fn BUS_RESCAN "device_t dev" .Sh DESCRIPTION The .Fn BUS_RESCAN method is called to request a rescan of the child devices on a bus device. The method should add any devices that have been added since the previous scan and remove devices that have been removed. This method is not required to re-examine existing devices to determine if their properties have changed. This method is also not required to propagate the rescan request to child devices. .Sh SEE ALSO .Xr device 9
Copyright (c) 2016 John H. Baldwin <jhb@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 AUTHOR AND CONTRIBUTORS ``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 AUTHOR OR CONTRIBUTORS 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: stable/11/share/man/man9/BUS_RESCAN.9 367457 2020-11-07 18:10:59Z dim $
.Dd April 27, 2016 .Dt BUS_RESCAN 9 .Os .Sh NAME .Nm BUS_RESCAN .Nd "rescan a bus checking for devices that have been added or removed" .Sh SYNOPSIS n sys/param.h n sys/bus.h .Ft void .Fn BUS_RESCAN "device_t dev" .Sh DESCRIPTION The .Fn BUS_RESCAN method is called to request a rescan of the child devices on a bus device. The method should add any devices that have been added since the previous scan and remove devices that have been removed. This method is not required to re-examine existing devices to determine if their properties have changed. This method is also not required to propagate the rescan request to child devices. .Sh SEE ALSO .Xr device 9