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

UDEV  [44611.372679] add      /devices/virtual/workqueue/scsi_tmf_4 (workqueue)
UDEV  [44611.377457] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4 (usb)
UDEV  [44611.386864] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.2 (usb)
UDEV  [44611.388457] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.1 (usb)
UDEV  [44611.388640] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.0 (usb)
UDEV  [44611.388677] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.3 (usb)
UDEV  [44611.394229] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.2/host4 (scsi)
UDEV  [44611.395488] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.2/host4/scsi_host/host4 (scsi_host)
UDEV  [44611.403461] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.5 (usb)
UDEV  [44611.403503] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.6 (usb)
UDEV  [44611.403530] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.2 (usb)
UDEV  [44611.403766] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.1/usbmisc/lp0 (usbmisc)
UDEV  [44611.404775] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.4 (usb)
UDEV  [44611.406256] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.1 (usb)
UDEV  [44611.409188] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4 (usb)
UDEV  [44611.410228] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.1/usbmisc/lp0 (usbmisc)
UDEV  [44611.411447] unbind   /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.1 (usb)
UDEV  [44612.374477] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.2/host4/target4:0:0 (scsi)
UDEV  [44612.376702] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.2/host4/target4:0:0/4:0:0:0 (scsi)
UDEV  [44612.377886] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.2/host4/target4:0:0/4:0:0:0/scsi_device/4:0:0:0 (scsi_device)
UDEV  [44612.378087] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.2/host4/target4:0:0/4:0:0:0/scsi_disk/4:0:0:0 (scsi_disk)
UDEV  [44612.378204] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.2/host4/target4:0:0/4:0:0:0/scsi_generic/sg3 (scsi_generic)
UDEV  [44612.379147] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.2/host4/target4:0:0/4:0:0:0/bsg/4:0:0:0 (bsg)
UDEV  [44612.380220] change   /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.2/host4/target4:0:0/4:0:0:0 (scsi)
UDEV  [44612.393606] add      /devices/virtual/bdi/8:32 (bdi)
UDEV  [44612.447614] add      /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.2/host4/target4:0:0/4:0:0:0/block/sdc (block)
UDEV  [44612.452823] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.2/host4/target4:0:0/4:0:0:0 (scsi)
UDEV  [44612.460140] change   /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.2/host4/target4:0:0/4:0:0:0/block/sdc (block)