udevd \- udev event serializer daemon
.br
udevsend \- sends the event to udevd
+.SH SYNOPSIS
+.BI udevsend " hotplug-subsystem"
+.sp
+The environment must provide the following variables:
+.TP
+.B ACTION
+.IR add " or " remove
+signifies the connection or disconnection of a device.
+.TP
+.B DEVPATH
+The sysfs devpath of the device without the mountpoint but a leading slash.
+.TP
+.B SEQNUM
+The sequence number of the event provided by the kernel.
+If unset, the event bypasses the queue and will be executed immediately.
.SH "DESCRIPTION"
.B udevd
allows the serialization of
.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