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.TH UDEVD 8 "February 2004" "" "Linux Administrator's Manual"
.SH NAME
udevd \- udev event serializer daemon
.br
udevsend \- sends the event to udevd
.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 it.
.br
.B udevd
takes care of the kernel supplied sequence number and arranges the events for
execution in the correct order. Missing sequences are delaying 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 it will never run more
than one instance 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), " hotplug" (8)
.SH AUTHORS
.B udevd
was developed primarily by Kay Sievers <kay.sievers@vrfy.org>, with much help
from others.
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