systemd-stable/udevd.8

.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.
.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.
.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.
[PATCH] udev - udevd/udevsend man page Here is the missing man page for udevd/udevsend. 2004-02-18 05:17:50 +03:00			`.TH UDEVD 8 "February 2004" "" "Linux Administrator's Manual"`
			`.SH NAME`
[PATCH] fix manpages based on esr's spambot On Mon, Jul 12, 2004 at 11:14:28AM -0400, esr@thyrsus.com wrote: > This is automatically generated email about problems in a man page for which > you appear to be responsible. If you are not the right person or list, tell > me and I will attempt to correct my database. > > See http://catb.org/~esr/doclifter/problems.html for details on how and > why these patches were generated. Feel free to email me with any questions. > > Note: This patch does not change the mod date of the manual page. You > may wish to do that by hand. > > Problems with udevd.8: > > 1. There are multiple name lines. This makes it impossible to translate > the page to DocBook. It may also confuse some implementations > of man -k. > > --- udevd.8-orig 2004-07-10 06:35:12.032545856 -0400 > +++ udevd.8 2004-07-10 06:36:19.301319448 -0400 > @@ -1,8 +1,6 @@ > .TH UDEVD 8 "February 2004" "" "Linux Administrator's Manual" > .SH NAME > -udevd \- udev event serializer daemon > -.br > -udevsend \- sends the event to udevd > +udevd, udevdsend \- udev event serializer daemon and udev event sender > .SH SYNOPSIS > -- > Eric S. Raymond > Thanks Eric, udevsend.8 is only a symlink to udevd.8, so I attached a stripped down patch to this mail. 2004-08-11 12:03:06 +04:00			`udevd, udevdsend \- udev event serializer daemon and udev event sender`
[PATCH] udev - man page update Hey it's not longer the "goal" to provide a dynamic dev directory, we have just arrived. So I change it to more self-confident words :) I've also added the completly missing environment variables to the man pages. To stop the misuse of the PROGRAM= call paramenters, we better mention its limitations. 2004-02-27 06:39:33 +03:00			`.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.`
[PATCH] udev - udevd/udevsend man page Here is the missing man page for udevd/udevsend. 2004-02-18 05:17:50 +03:00			`.SH "DESCRIPTION"`
			`.B udevd`
			`allows the serialization of`
			`.BR hotplug (8)`
			`events. The events generated by the kernel may arrive in random order`
[PATCH] man page beauty Thanks to Christian Gierke, he sent me a beauty patch for our man pages. Some typos are fixed and a few word are clarified. 2004-03-10 06:50:30 +03:00			`in userspace, that makes it neccessary to reorder them.`
[PATCH] udev - udevd/udevsend man page Here is the missing man page for udevd/udevsend. 2004-02-18 05:17:50 +03:00			`.br`
			`.B udevd`
			`takes care of the kernel supplied sequence number and arranges the events for`
[PATCH] man page beauty Thanks to Christian Gierke, he sent me a beauty patch for our man pages. Some typos are fixed and a few word are clarified. 2004-03-10 06:50:30 +03:00			`execution in the correct order. Missing sequences delay the execution of the`
[PATCH] increase udevd event timeout I have a very slow Bluetooth adapter hotplug event call, so we need to increase the event timeout to something larger than 6 seconds. Apr 1 02:54:08 pim udevsend[12119]: main: DEVPATH = '/class/tty/ttyUB0' Apr 1 02:54:08 pim udevsend[12119]: main: SEQNUM = '340' Apr 1 02:54:08 pim udevsend[12120]: main: DEVPATH = '/devices/pci0000:00/0000:00:1d.2/usb4/4-1' Apr 1 02:54:08 pim udevsend[12120]: main: SEQNUM = '344' Apr 1 02:54:09 pim udevsend[12133]: main: DEVPATH = '/devices/pci0000:00/0000:00:1d.2/usb4/4-1/4-1:1.1' Apr 1 02:54:09 pim udevsend[12133]: main: SEQNUM = '342' Apr 1 02:54:10 pim udevsend[12136]: main: DEVPATH = '/devices/pci0000:00/0000:00:1d.2/usb4/4-1/4-1:1.2' Apr 1 02:54:10 pim udevsend[12136]: main: SEQNUM = '343' Apr 1 02:54:13 pim udevsend[12141]: main: DEVPATH = '/devices/pci0000:00/0000:00:1d.2/usb4/4-1/4-1:1.0' Apr 1 02:54:13 pim udevsend[12141]: main: SEQNUM = '341' 2004-04-03 04:58:59 +04:00			`following events until a timeout is reached.`
[PATCH] udev - udevd/udevsend man page Here is the missing man page for udevd/udevsend. 2004-02-18 05:17:50 +03:00			`.br`
			`For each event a`
			`.BR udev (8)`
			`instance is executed in the background. All further events for the same device`
[PATCH] man page beauty Thanks to Christian Gierke, he sent me a beauty patch for our man pages. Some typos are fixed and a few word are clarified. 2004-03-10 06:50:30 +03:00			`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.`
[PATCH] udev - udevd/udevsend man page Here is the missing man page for udevd/udevsend. 2004-02-18 05:17:50 +03:00			`.br`
			`.B udevd`
			`receives the events from`
			`.B udevsend`
			`which is called by`
[PATCH] udev - add %s{filename} to man page Add the new %s{filename} to the udev man page. And add the automatic start of udevd to the udevd man page. 2004-02-18 06:02:39 +03:00			`.BR hotplug (8).`
			`If`
			`.B udevd`
			`isn't already running,`
			`.B udevsend`
			`will start it.`
[PATCH] udev - udevd/udevsend man page Here is the missing man page for udevd/udevsend. 2004-02-18 05:17:50 +03:00			`.SH "SEE ALSO"`
[PATCH] udev - man page update Hey it's not longer the "goal" to provide a dynamic dev directory, we have just arrived. So I change it to more self-confident words :) I've also added the completly missing environment variables to the man pages. To stop the misuse of the PROGRAM= call paramenters, we better mention its limitations. 2004-02-27 06:39:33 +03:00			`.BR udev (8),`
			`.BR udevinfo (8),`
			`.BR hotplug (8)`
[PATCH] udev - udevd/udevsend man page Here is the missing man page for udevd/udevsend. 2004-02-18 05:17:50 +03:00			`.SH AUTHORS`
			`.B udevd`
			`was developed primarily by Kay Sievers <kay.sievers@vrfy.org>, with much help`
			`from others.`