.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
+.BI udevsend " hotplug-subsystem"
.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.
+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 are delaying the
-execution of the following events until a timeout of a maximum of 5 seconds
-is reached.
+takes care of the kernel supplied
+.B SEQNUM
+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. Events without any sequence number are bypassing the queue and
+will be executed immediately.
.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.
+instance is executed in the background with the complete environment received
+by the hotplug event. 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), " hotplug" (8)
+.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
~ianmdlvl / elogind.git / blobdiff