1.\"
2.\" Copyright (c) 2002 M. Warner Losh.
3.\" All rights reserved.
4.\"
5.\" Redistribution and use in source and binary forms, with or without
6.\" modification, are permitted provided that the following conditions
7.\" are met:
8.\" 1. Redistributions of source code must retain the above copyright

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18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24.\" SUCH DAMAGE.
25.\"
26.\" $FreeBSD: head/sbin/devd/devd.8 113790 2003-04-21 06:26:08Z imp $
27.\"
28.Dd October 17, 2002
29.Dt DEVD 8
30.Os
31.Sh NAME
32.Nm devd
33.Nd "device state change daemon"
34.Sh SYNOPSIS
35.Nm
36.Op Fl Ddn
37.Sh DESCRIPTION
38The
39.Nm
40daemon provides a way to have userland programs run when certain
41kernel events happen.
42.Pp
43The following options are accepted.
44.Bl -tag -width indent
45.It Fl D
46Enable debugging messages.
47.It Fl d
48Run in the foreground instead of becoming a daemon.
49.It Fl n
50Don't process all pending events before becoming a daemon.
51Instaed, call daemon right away.
52.El
53.Sh IMPLEMENTATION NOTES
54The
55.Nm
56utility
57is a system daemon that runs in the background all the time.
58Whenever a device is added to or removed from the device tree,
59.Nm

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