libvolume_id: squashfs+LZMA compression detection

[elogind.git] / udevd.8

diff --git a/udevd.8 b/udevd.8
index 1de7a3cba2f7ae1a7085141c356f9566b9a6a128..0f0dd1ac2dccf249c1c8e7a032072baf1c6ccbc1 100644 (file)
--- a/udevd.8
+++ b/udevd.8
@@ -1,54 +1,61 @@
-.TH UDEVD 8 "February 2004" "" "Linux Administrator's Manual"
-.SH NAME
-udevd, udevdsend \- udev event serializer daemon and udev event sender
-.SH SYNOPSIS
-.BI udevsend " hotplug-subsystem"
-.sp
-The environment must provide the following variables:
-.TP
-.B ACTION
-.IR add " or " remove
-signifies the connection or disconnection of a device.
-.TP
-.B DEVPATH
-The sysfs devpath of the device without the mountpoint but a leading slash.
-.TP
-.B SEQNUM
-The sequence number of the event provided by the kernel.
-If unset, the event bypasses the queue and will be executed immediately.
+.\"     Title: udevd
+.\"    Author: 
+.\" Generator: DocBook XSL Stylesheets v1.73.1 <http://docbook.sf.net/>
+.\"      Date: August 2005
+.\"    Manual: udevd
+.\"    Source: udev
+.\"
+.TH "UDEVD" "8" "August 2005" "udev" "udevd"
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.SH "NAME"
+udevd - event managing daemon
+.SH "SYNOPSIS"
+.HP 6
+\fBudevd\fR [\fB\-\-daemon\fR] [\fB\-\-debug\-trace\fR] [\fB\-\-verbose\fR] [\fB\-\-version\fR] [\fB\-\-help\fR]
 .SH "DESCRIPTION"
-.B udevd
-allows the serialization of
-.BR hotplug (8)
-events. The events generated by the kernel may arrive in random order
-in userspace, that makes it neccessary to reorder them.
-.br
-.B udevd
-takes care of the kernel supplied sequence number and arranges the events for
-execution in the correct order. Missing sequences delay the execution of the
-following events until a timeout is reached.
-.br
-For each event a
-.BR udev (8)
-instance is executed in the background. All further events for the same device
-are delayed until the execution is finished. This way there will never be more
-than one instance running for a single device at the same time.
-.br
-.B udevd
-receives the events from
-.B udevsend
-which is called by
-.BR hotplug (8).
-If
-.B udevd
-isn't already running,
-.B udevsend
-will start it.
+.PP
+udevd listens to kernel uevents and passes the incoming events to udev\. It ensures the correct event order and takes care, that events for child devices are delayed until the parent event has finished the device handling\. The behavior of the running daemon can be changed with
+\fBudevadm control\fR\.
+.SH "OPTIONS"
+.PP
+\fB\-\-daemon\fR
+.RS 4
+Detach and run in the background\.
+.RE
+.PP
+\fB\-\-debug\-trace\fR
+.RS 4
+Run all events completely serialized\. This may be useful if udev triggers actions or loads kernel modules which cause problems and a slow but continuous operation is needed, where no events are processed in parallel\.
+.RE
+.PP
+\fB\-\-verbose\fR
+.RS 4
+Print log messages to stdout\.
+.RE
+.PP
+\fB\-\-version\fR
+.RS 4
+Print version number\.
+.RE
+.PP
+\fBhelp\fR
+.RS 4
+Print help text\.
+.RE
+.SH "ENVIRONMENT"
+.PP
+\fBUDEV_LOG\fR
+.RS 4
+Overrides the syslog priority specified in the config file\.
+.RE
+.SH "AUTHOR"
+.PP
+Written by Kay Sievers
+<kay\.sievers@vrfy\.org>\.
 .SH "SEE ALSO"
-.BR udev (8),
-.BR udevinfo (8),
-.BR hotplug (8)
-.SH AUTHORS
-.B udevd
-was developed primarily by Kay Sievers <kay.sievers@vrfy.org>, with much help
-from others.
+.PP
+\fBudev\fR(8),
+\fBudevadm\fR(8)