63 lines
2.1 KiB
Groff
63 lines
2.1 KiB
Groff
.\" -*- nroff -*-
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.\"
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.\" Copyright (c) 1998 Doug Rabson
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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 August 23, 2008
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.Dt DEVICE_GET_CHILDREN 9
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.Os
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.Sh NAME
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.Nm device_get_children
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.Nd get a list of devices connected to a device
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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 device_get_children "device_t dev" "device_t **devlistp" "int *devcountp"
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.Sh DESCRIPTION
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Retrieve a list of all device instances currently connected to
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.Pa dev
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and return the list in
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.Fa *devlistp
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and the count in
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.Fa *devcountp .
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The memory allocated for the list should be freed using
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.Fn free "*devlistp" "M_TEMP" .
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.Fa devlistp
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and
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.Fa devcountp
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are not changed when an error is returned.
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.Sh RETURN VALUES
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Zero is returned on success, otherwise an appropriate error is returned.
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.Sh SEE ALSO
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.Xr devclass 9 ,
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.Xr device 9
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.Sh AUTHORS
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This manual page was written by
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.An Doug Rabson .
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