-.TH UDEVD 8 "February 2004" "" "Linux Administrator's Manual"
-.SH NAME
-udevd \- udev event serializer daemon
-.br
-udevsend \- sends the event to udevd
-.SH SYNOPSIS
-.BI udevsend " hotplug-subsystem"
-.sp
-The environment must provide the following variables:
+.\" ** You probably do not want to edit this file directly **
+.\" It was generated using the DocBook XSL Stylesheets (version 1.69.0).
+.\" Instead of manually editing it, you probably should edit the DocBook XML
+.\" source for it and then use the DocBook XSL Stylesheets to regenerate it.
+.TH "UDEVD" "8" "August 2005" "udev" "udevd, udevcontrol"
+.\" 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]
+.HP 20
+\fBudevcontrol \fR\fB\fIcommand\fR\fR
+.SH "DESCRIPTION"
+.PP
+udevd listens to kernel uevents and passes the incoming events to udev. It ensures the right event order and takes care, that events for child devices are delayed until the parent has finished the device handling.
+.SH "OPTIONS"
.TP
-.B ACTION
-.IR add " or " remove
-signifies the connection or disconnection of a device.
+\fB\-\-daemon\fR
+Detach and run in the background.
.TP
-.B DEVPATH
-The sysfs devpath of the device without the mountpoint but a leading slash.
+\fBlog_priority=\fR\fB\fIvalue\fR\fR
+udevcontrol can dynamically set the log level of udevd. Valid values are the numerical syslog priorities or their textual representations:
+\fBerr\fR,
+\fBinfo\fR
+and
+\fBdebug\fR.
.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.
-.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 of a maximum of 5 seconds 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.
+\fBstop_exec_queue\fR
+udevcontrol stops the execution of events from udevd.
+.TP
+\fBstart_exec_queue\fR
+udevcontrol starts the execution of events from udevd.
+.SH "ENVIRONMENT"
+.TP
+\fBUDEV_LOG\fR
+Overrides the syslog priority specified in the config file.
+.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)
~ianmdlvl / elogind.git / blobdiff