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UDEVD(8) | udevd | UDEVD(8) |
NAME¶
udevd - event managing daemonSYNOPSIS¶
udevd
[ --daemon] [--debug] [--children-max=]
[--exec-delay=] [ --resolve-names=early|late|never]
[--version] [ --help]
DESCRIPTION¶
udevd listens to kernel uevents. For every event, udevd executes matching instructions specified in udev rules. See udev(7). On startup the content of the directory /lib/udev/devices is copied to /dev. If kernel modules specify static device nodes, these nodes are created even without a corresponding kernel device, to allow on-demand loading of kernel modules. Matching permissions specified in udev rules are applied to these static device nodes. The behavior of the running daemon can be changed with udevadm control.OPTIONS¶
--daemonDetach and run in the background.
--debug
Print debug messages to stderr.
--children-max=
Limit the number of parallel executed
events.
--exec-delay=
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.
--resolve-names=
Specify when udevd should resolve names of
users and groups. When set to early (the default) names will be
resolved when the rules are parsed. When set to late names will be
resolved for every event. When set to never names will never be
resolved and all devices will be owned by root.
--version
Print version number.
--help
Print help text.
ENVIRONMENT¶
UDEV_LOG=Set the logging priority.
KERNEL COMMAND LINE¶
udev.log-priority=Set the logging priority.
udev.children-max=
Limit the number of parallel executed
events.
udev.exec-delay=
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.
AUTHOR¶
Written by Kay Sievers kay.sievers@vrfy.org.SEE ALSO¶
udev(7), udevadm(8)11/07/2011 | udev |