-.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.