02-25-2014
udev manages device nodes. The kernel sends events to the udev daemon whenever a device is discovered or removed. Then udev uses a collection of rules to create or remove device nodes in the filesystem or perform other actions.
udev does not load or unload kernel drivers.
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LEARN ABOUT LINUX
upstart-udev-bridge
upstart-udev-bridge(8) System Manager's Manual upstart-udev-bridge(8)
NAME
upstart-udev-bridge - Bridge between Upstart and udev
SYNOPSIS
upstart-udev-bridge [OPTIONS]...
DESCRIPTION
upstart-udev-bridge receives information about kernel uevents that udev(8) has completed and creates init(8) events for them.
It emits events which match the pattern "S-device-A" where 'S' is the udev subsystem and 'A' is the udev action. See udev(7) and for fur-
ther details.
Assuming /sys is mounted, possible values for subsystem for your system are viewable via /sys/class/.
EXAMPLES
net-device-added
Event emitted when a network device is added.
net-device-removed
Event emitted when a network device is removed.
graphics-card-added
Event emitted when a graphics device is available to the system.
NOTES
This is a temporary tool until init(8) itself gains the functionality to read them directly; you should not rely on its behaviour.
AUTHOR
Written by Scott James Remnant <scott@netsplit.com>
BUGS
Report bugs at <https://launchpad.net/ubuntu/+source/upstart/+bugs>
COPYRIGHT
Copyright (C) 2009,2010,2011 Canonical Ltd.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO
init(5) init(8) udev(7)
upstart 2011-03-08 upstart-udev-bridge(8)