UDEVD(8)			     udevd			      UDEVD(8)



NAME
       udevd - event managing daemon

SYNOPSIS
       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
       --daemon
	   Detach 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)



udev				  07/30/2011			      UDEVD(8)