udevmonitor prints the received event from the kernel [UEVENT]
and the event which udev sends out after rule processing [UDEV]

UEVENT[1187035700.834169] add@/module/adi
ACTION=add
DEVPATH=/module/adi
SUBSYSTEM=module
SEQNUM=583

UEVENT[1187035700.834300] add@/bus/gameport/drivers/adi
ACTION=add
DEVPATH=/bus/gameport/drivers/adi
SUBSYSTEM=drivers
SEQNUM=584