monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent

KERNEL[1247771743.430353] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1 (usb)
UDEV  [1247771743.475929] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1 (usb)
KERNEL[1247771743.482719] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0 (usb)
UDEV  [1247771743.501622] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0 (usb)
KERNEL[1247771743.515674] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6 (scsi)
KERNEL[1247771743.515763] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/scsi_host/host6 (scsi_host)
UDEV  [1247771743.517768] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6 (scsi)
KERNEL[1247771743.523440] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/usb_endpoint/usbdev2.8_ep05 (usb_endpoint)
KERNEL[1247771743.523544] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/usb_endpoint/usbdev2.8_ep85 (usb_endpoint)
KERNEL[1247771743.523685] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/usb_endpoint/usbdev2.8_ep00 (usb_endpoint)
UDEV  [1247771743.536329] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/scsi_host/host6 (scsi_host)
UDEV  [1247771743.544569] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/usb_endpoint/usbdev2.8_ep05 (usb_endpoint)
UDEV  [1247771743.557803] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/usb_endpoint/usbdev2.8_ep85 (usb_endpoint)
UDEV  [1247771743.577829] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/usb_endpoint/usbdev2.8_ep00 (usb_endpoint)
KERNEL[1247771748.527463] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/target6:0:0 (scsi)
UDEV  [1247771748.529459] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/target6:0:0 (scsi)
KERNEL[1247771748.534019] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/target6:0:0/6:0:0:0 (scsi)
KERNEL[1247771748.534161] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/target6:0:0/6:0:0:0/scsi_disk/6:0:0:0 (scsi_disk)
UDEV  [1247771748.574637] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/target6:0:0/6:0:0:0 (scsi)
KERNEL[1247771748.593351] change   /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/target6:0:0/6:0:0:0 (scsi)
UDEV  [1247771748.594957] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/target6:0:0/6:0:0:0/scsi_disk/6:0:0:0 (scsi_disk)
UDEV  [1247771748.611821] change   /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/target6:0:0/6:0:0:0 (scsi)
KERNEL[1247771748.617281] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/target6:0:0/6:0:0:0/block/sdc (block)
KERNEL[1247771748.617322] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/target6:0:0/6:0:0:0/block/sdc/sdc1 (block)
KERNEL[1247771748.617442] add      /devices/virtual/bdi/8:32 (bdi)
KERNEL[1247771748.617557] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/target6:0:0/6:0:0:0/scsi_device/6:0:0:0 (scsi_device)
KERNEL[1247771748.617691] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/target6:0:0/6:0:0:0/scsi_generic/sg3 (scsi_generic)
KERNEL[1247771748.617805] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/target6:0:0/6:0:0:1 (scsi)
KERNEL[1247771748.617886] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/target6:0:0/6:0:0:1/scsi_disk/6:0:0:1 (scsi_disk)
KERNEL[1247771748.632366] change   /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/target6:0:0/6:0:0:1 (scsi)
UDEV  [1247771748.651447] add      /devices/virtual/bdi/8:32 (bdi)
KERNEL[1247771748.659595] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/target6:0:0/6:0:0:1/block/sdd (block)
KERNEL[1247771748.659634] add      /devices/pci0000:00/0000:00:1d.2/usb2/2-1/2-1:2.0/host6/target6:0:0/6:0:0:1/block/sdd/sdd1 (block)
KERNEL[1247771748.659762] add      /devices/virtual/bdi/8:48 (bdi)
KERNEL[1247771748.659877] add      /devices/pci0000:00/0000:00:1