1.\" 2.\" Copyright (c) 2010 The DragonFly Project. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in 12.\" the documentation and/or other materials provided with the 13.\" distribution. 14.\" 3. Neither the name of The DragonFly Project nor the names of its 15.\" contributors may be used to endorse or promote products derived 16.\" from this software without specific, prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 21.\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 22.\" COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23.\" INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 24.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 28.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29.\" SUCH DAMAGE. 30.\" 31.Dd September 29, 2016 32.Dt UDEVD 8 33.Os 34.Sh NAME 35.Nm udevd 36.Nd udev daemon 37.Sh SYNOPSIS 38.Nm 39.Op Fl d 40.Sh DESCRIPTION 41The 42.Nm 43daemon attaches itself to the kernel's udev interface, 44.Pa /dev/udev 45and provides an interface for the 46.Xr devattr 3 47library to access the kernel's udev events and device properties. 48The 49.Nm 50daemon has to be running for the 51.Xr devattr 3 52library to work. 53.Pp 54The options are as follows: 55.Bl -tag -width Fl 56.It Fl d 57Debug option. 58Causes 59.Nm 60to not go to the background. 61.El 62.Pp 63The 64.Nm 65utility creates the file 66.Pa /var/run/udevd.pid , 67and stores its process id there. 68This can be used to kill 69.Nm . 70.Sh SEE ALSO 71.Xr devattr 3 , 72.Xr rc.conf 5 73.Sh HISTORY 74A 75.Nm 76appeared in 77.Dx 2.7 . 78