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+.\" -*- nroff -*-
+.\"
+.\" Copyright (c) 1998 Doug Rabson
+.\"
+.\" 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.
+.\"
+.Dd February 5, 2025
+.Dt DEVICE_DELETE_CHILD 9
+.Os
+.Sh NAME
+.Nm device_delete_child
+.Nd delete a child from a device
+.Sh SYNOPSIS
+.In sys/param.h
+.In sys/bus.h
+.Ft int
+.Fn device_delete_child "device_t dev" "device_t child"
+.Sh DESCRIPTION
+The specified device is removed from
+.Fa dev
+and deleted.
+If the device is currently attached, it is first detached via
+.Xr device_detach 9 .
+If
+.Fn device_detach
+fails,
+its error value is returned.
+Otherwise,
+all descendant devices of
+.Fa child
+are deleted and zero is returned.
+.Pp
+The
+.Xr BUS_CHILD_DELETED 9
+method is invoked for each device that is deleted.
+This permits the parent device's driver to tear down any state associated
+with child devices such as ivars.
+.Sh RETURN VALUES
+Zero is returned on success, otherwise an error is returned.
+.Sh SEE ALSO
+.Xr BUS_CHILD_DELETED 9 ,
+.Xr device_add_child 9
+.Sh AUTHORS
+This manual page was written by
+.An Doug Rabson .