| 1 | .\" Title: systemd-udevd.service
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| 2 | .\" Author: Kay Sievers <kay@vrfy.org>
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| 3 | .\" Generator: DocBook XSL Stylesheets v1.77.1 <http://docbook.sf.net/>
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| 4 | .\" Date: 07/20/2012
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| 5 | .\" Manual: systemd-udevd.service
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| 6 | .\" Source: systemd
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| 7 | .\" Language: English
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| 8 | .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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| 9 | .\" Manually updated for udev only for LFS by BRuce Dubbs
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| 10 | .\" <bdubbs@linuxfromscratch.org>
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| 11 | .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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| 12 | .\"
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| 13 | .TH "UDEVD" "8" "" "systemd (LFS modified man page)" "udevd"
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| 14 | .\" -----------------------------------------------------------------
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| 15 | .\" * Define some portability stuff
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| 16 | .\" -----------------------------------------------------------------
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| 17 | .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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| 18 | .\" http://bugs.debian.org/507673
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| 19 | .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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| 20 | .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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| 21 | .ie \n(.g .ds Aq \(aq
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| 22 | .el .ds Aq '
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| 23 | .\" -----------------------------------------------------------------
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| 24 | .\" * set default formatting
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| 25 | .\" -----------------------------------------------------------------
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| 26 | .\" disable hyphenation
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| 27 | .nh
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| 28 | .\" disable justification (adjust text to left margin only)
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| 29 | .ad l
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| 30 | .\" -----------------------------------------------------------------
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| 31 | .\" * MAIN CONTENT STARTS HERE *
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| 32 | .\" -----------------------------------------------------------------
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| 33 | .SH "NAME"
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| 34 | udevd \- Device event managing daemon
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| 35 | .SH "SYNOPSIS"
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| 36 | .PP
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| 37 | .HP \w'\fB/usr/lib/udevd\fR\ 'u
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| 38 | \fB/lib/udev/udevd\fR [\fB\-\-daemon\fR] [\fB\-\-debug\fR] [\fB\-\-children\-max=\fR] [\fB\-\-exec\-delay=\fR] \ [\fB\-\-resolve\-names=early|late|never\fR] [\fB\-\-version\fR] [\fB\-\-help\fR]
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| 39 | .SH "DESCRIPTION"
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| 40 | .PP
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| 41 | udevd listens to kernel uevents\&. For every event, udevd executes matching instructions specified in udev rules\&. See
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| 42 | \fBudev\fR(7)\&.
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| 43 | .PP
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| 44 | The behavior of the running daemon can be changed with
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| 45 | \fBudevadm control\fR\&.
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| 46 | .SH "OPTIONS"
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| 47 | .PP
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| 48 | \fB\-\-daemon\fR
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| 49 | .RS 4
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| 50 | Detach and run in the background\&.
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| 51 | .RE
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| 52 | .PP
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| 53 | \fB\-\-debug\fR
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| 54 | .RS 4
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| 55 | Print debug messages to stderr\&.
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| 56 | .RE
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| 57 | .PP
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| 58 | \fB\-\-children\-max=\fR
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| 59 | .RS 4
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| 60 | Limit the number of parallel executed events\&.
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| 61 | .RE
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| 62 | .PP
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| 63 | \fB\-\-exec\-delay=\fR
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| 64 | .RS 4
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| 65 | Number of seconds to delay the execution of RUN instructions\&. This might be useful when debugging system crashes during coldplug cause by loading non\-working kernel modules\&.
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| 66 | .RE
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| 67 | .PP
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| 68 | \fB\-\-resolve\-names=\fR
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| 69 | .RS 4
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| 70 | Specify when udevd should resolve names of users and groups\&. When set to
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| 71 | \fBearly\fR
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| 72 | (the default) names will be resolved when the rules are parsed\&. When set to
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| 73 | \fBlate\fR
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| 74 | names will be resolved for every event\&. When set to
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| 75 | \fBnever\fR
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| 76 | names will never be resolved and all devices will be owned by root\&.
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| 77 | .RE
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| 78 | .PP
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| 79 | \fB\-\-version\fR
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| 80 | .RS 4
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| 81 | Print version number\&.
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| 82 | .RE
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| 83 | .PP
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| 84 | \fB\-\-help\fR
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| 85 | .RS 4
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| 86 | Print help text\&.
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| 87 | .RE
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| 88 | .SH "ENVIRONMENT"
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| 89 | .PP
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| 90 | \fIUDEV_LOG=\fR
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| 91 | .RS 4
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| 92 | Set the logging priority\&.
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| 93 | .RE
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| 94 | .SH "KERNEL COMMAND LINE"
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| 95 | .PP
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| 96 | The parameters starting with "rd\&.", will be read when udev is used in an initrd\&.
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| 97 | .PP
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| 98 | \fIudev\&.log\-priority=\fR, \fIrd\&.udev\&.log\-priority=\fR
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| 99 | .RS 4
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| 100 | Set the logging priority\&.
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| 101 | .RE
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| 102 | .PP
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| 103 | \fIudev\&.children\-max=\fR, \fIrd\&.udev\&.children\-max=\fR
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| 104 | .RS 4
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| 105 | Limit the number of parallel executed events\&.
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| 106 | .RE
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| 107 | .PP
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| 108 | \fIudev\&.exec\-delay=\fR, \fIrd\&.udev\&.exec\-delay=\fR
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| 109 | .RS 4
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| 110 | Number of seconds to delay the execution of RUN instructions\&. This might be useful when debugging system crashes during coldplug cause by loading non\-working kernel modules\&.
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| 111 | .RE
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| 112 | .SH "SEE ALSO"
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| 113 | .PP
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| 114 | \fBudev\fR(7),
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| 115 | \fBudevadm\fR(8)
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