udevmonitor will print the received events for:
UDEV the event which udev sends out after rule processing
UEVENT the kernel uevent

UEVENT[1193380095.781692] add      /devices/pci0000:00/0000:00:02.2/usb3/3-3 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:02.2/usb3/3-3
SUBSYSTEM=usb
SEQNUM=2714
MAJOR=189
MINOR=262
DEVTYPE=usb_device
PHYSDEVBUS=usb
DEVICE=/proc/bus/usb/003/007
PRODUCT=1a4a/1670/62
TYPE=0/0/0
BUSNUM=003
DEVNUM=007

UEVENT[1193380095.781740] add      /class/usb_endpoint/usbdev3.7_ep00 (usb_endpoint)
ACTION=add
DEVPATH=/class/usb_endpoint/usbdev3.7_ep00
SUBSYSTEM=usb_endpoint
SEQNUM=2715
MAJOR=254
MINOR=16
PHYSDEVPATH=/devices/pci0000:00/0000:00:02.2/usb3/3-3
PHYSDEVBUS=usb
PHYSDEVDRIVER=usb

UEVENT[1193380095.783301] add      /devices/pci0000:00/0000:00:02.2/usb3/3-3/3-3:1.0 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:02.2/usb3/3-3/3-3:1.0
SUBSYSTEM=usb
SEQNUM=2716
DEVTYPE=usb_interface
PHYSDEVBUS=usb
DEVICE=/proc/bus/usb/003/007
PRODUCT=1a4a/1670/62
TYPE=0/0/0
INTERFACE=8/6/80
MODALIAS=usb:v1A4Ap1670d0062dc00dsc00dp00ic08isc06ip50

UEVENT[1193380095.783331] add      /slab/:0000320 (slab)
ACTION=add
DEVPATH=/slab/:0000320
SUBSYSTEM=slab
SEQNUM=2717

UEVENT[1193380095.783507] add      /class/scsi_host/host1 (scsi_host)
ACTION=add
DEVPATH=/class/scsi_host/host1
SUBSYSTEM=scsi_host
SEQNUM=2718
PHYSDEVPATH=/devices/pci0000:00/0000:00:02.2/usb3/3-3/3-3:1.0/host1

UEVENT[1193380095.783820] add      /class/usb_endpoint/usbdev3.7_ep02 (usb_endpoint)
ACTION=add
DEVPATH=/class/usb_endpoint/usbdev3.7_ep02
SUBSYSTEM=usb_endpoint
SEQNUM=2719
MAJOR=254
MINOR=17
PHYSDEVPATH=/devices/pci0000:00/0000:00:02.2/usb3/3-3/3-3:1.0
PHYSDEVBUS=usb
PHYSDEVDRIVER=usb-storage

UEVENT[1193380095.783833] add      /class/usb_endpoint/usbdev3.7_ep81 (usb_endpoint)
ACTION=add
DEVPATH=/class/usb_endpoint/usbdev3.7_ep81
SUBSYSTEM=usb_endpoint
SEQNUM=2720
MAJOR=254
MINOR=18
PHYSDEVPATH=/devices/pci0000:00/0000:00:02.2/usb3/3-3/3-3:1.0
PHYSDEVBUS=usb
PHYSDEVDRIVER=usb-storage

UEVENT[1193380095.783841] add      /class/usb_device/usbdev3.7 (usb_device)
ACTION=add
DEVPATH=/class/usb_device/usbdev3.7
SUBSYSTEM=usb_device
SEQNUM=2721
MAJOR=189
MINOR=262
PHYSDEVPATH=/devices/pci0000:00/0000:00:02.2/usb3/3-3
PHYSDEVBUS=usb
PHYSDEVDRIVER=usb

UDEV  [1193380095.786365] add      /devices/pci0000:00/0000:00:02.2/usb3/3-3 (usb)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:02.2/usb3/3-3
SUBSYSTEM=usb
SEQNUM=2714
MAJOR=189
MINOR=262
DEVTYPE=usb_device
PHYSDEVBUS=usb
DEVICE=/proc/bus/usb/003/007
PRODUCT=1a4a/1670/62
TYPE=0/0/0
BUSNUM=003
DEVNUM=007
UDEVD_EVENT=1
DEVNAME=/dev/3-3

UDEV  [1193380095.812382] add      /slab/:0000320 (slab)
UDEV_LOG=3
ACTION=add
DEVPATH=/slab/:0000320
SUBSYSTEM=slab
SEQNUM=2717
UDEVD_EVENT=1

UDEV  [1193380095.814806] add      /class/usb_endpoint/usbdev3.7_ep00 (usb_endpoint)
UDEV_LOG=3
ACTION=add
DEVPATH=/class/usb_endpoint/usbdev3.7_ep00
SUBSYSTEM=usb_endpoint
SEQNUM=2715
MAJOR=254
MINOR=16
PHYSDEVPATH=/devices/pci0000:00/0000:00:02.2/usb3/3-3
PHYSDEVBUS=usb
PHYSDEVDRIVER=usb
UDEVD_EVENT=1
DEVNAME=/dev/usbdev3.7_ep00

UDEV  [1193380095.916637] add      /devices/pci0000:00/0000:00:02.2/usb3/3-3/3-3:1.0 (usb)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:02.2/usb3/3-3/3-3:1.0
SUBSYSTEM=usb
SEQNUM=2716
DEVTYPE=usb_interface
PHYSDEVBUS=usb
DEVICE=/proc/bus/usb/003/007
PRODUCT=1a4a/1670/62
TYPE=0/0/0
INTERFACE=8/6/80
MODALIAS=usb:v1A4Ap1670d0062dc00dsc00dp00ic08isc06ip50
UDEVD_EVENT=1

UDEV  [1193380095.919160] add      /class/scsi_host/host1 (scsi_host)
UDEV_LOG=3
ACTION=add
DEVPATH=/class/scsi_host/host1
SUBSYSTEM=scsi_host
SEQNUM=2718
PHYSDEVPATH=/devices/pci0000:00/0000:00:02.2/usb3/3-3/3-3:1.0/host1
UDEVD_EVENT=1

UDEV  [1193380095.921579] add      /class/usb_endpoint/usbdev3.7_ep02 (usb_endpoint)
UDEV_LOG=3
ACTION=add
DEVPATH=/class/usb_endpoint/usbdev3.7_ep02
SUBSYSTEM=usb_endpoint
SEQNUM=2719
MAJOR=254
MINOR=17
PHYSDEVPATH=/devices/pci0000:00/0000:00:02.2/usb3/3-3/3-3:1.0
PHYSDEVBUS=usb
PHYSDEVDRIVER=usb-storage
UDEVD_EVENT=1
DEVNAME=/dev/usbdev3.7_ep02

UDEV  [1193380095.926590] add