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

UDEV  [570.456615] add      /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2 (usb)
ACTION=add
BUSNUM=001
DEVNAME=/dev/bus/usb/001/006
DEVNUM=006
DEVPATH=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2
DEVTYPE=usb_device
ID_BUS=usb
ID_MODEL=VG130_D710
ID_MODEL_ENC=VG130\x2cD710
ID_MODEL_ID=0126
ID_REVISION=0100
ID_SERIAL=OLYMPUS_VG130_D710_UEH111709
ID_SERIAL_SHORT=UEH111709
ID_USB_INTERFACES=:080650:
ID_VENDOR=OLYMPUS
ID_VENDOR_ENC=OLYMPUS
ID_VENDOR_ID=07b4
MAJOR=189
MINOR=5
PRODUCT=7b4/126/100
SEQNUM=2298
SUBSYSTEM=usb
TYPE=0/0/0
UDEV_LOG=3
USEC_INITIALIZED=570456506

UDEV  [570.457430] add      /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0
DEVTYPE=usb_interface
INTERFACE=8/6/80
MODALIAS=usb:v07B4p0126d0100dc00dsc00dp00ic08isc06ip50
PRODUCT=7b4/126/100
SEQNUM=2299
SUBSYSTEM=usb
TYPE=0/0/0
UDEV_LOG=3
USEC_INITIALIZED=570457361

UDEV  [570.457781] add      /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10 (scsi)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10
DEVTYPE=scsi_host
SEQNUM=2300
SUBSYSTEM=scsi
UDEV_LOG=3
USEC_INITIALIZED=570457707

UDEV  [570.458284] add      /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/scsi_host/host10 (scsi_host)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/scsi_host/host10
SEQNUM=2301
SUBSYSTEM=scsi_host
UDEV_LOG=3
USEC_INITIALIZED=570458225

UDEV  [571.778349] add      /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/target10:0:0 (scsi)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/target10:0:0
DEVTYPE=scsi_target
SEQNUM=2302
SUBSYSTEM=scsi
UDEV_LOG=3
USEC_INITIALIZED=571778281

UDEV  [571.778890] add      /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/target10:0:0/10:0:0:0 (scsi)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/target10:0:0/10:0:0:0
DEVTYPE=scsi_device
MODALIAS=scsi:t-0x00
SEQNUM=2303
SUBSYSTEM=scsi
UDEV_LOG=3
USEC_INITIALIZED=571778837

UDEV  [571.779569] add      /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/target10:0:0/10:0:0:0/scsi_disk/10:0:0:0 (scsi_disk)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/target10:0:0/10:0:0:0/scsi_disk/10:0:0:0
SEQNUM=2304
SUBSYSTEM=scsi_disk
UDEV_LOG=3
USEC_INITIALIZED=571779483

UDEV  [571.779888] add      /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/target10:0:0/10:0:0:0/scsi_device/10:0:0:0 (scsi_device)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/target10:0:0/10:0:0:0/scsi_device/10:0:0:0
SEQNUM=2305
SUBSYSTEM=scsi_device
UDEV_LOG=3
USEC_INITIALIZED=571779788

UDEV  [571.780903] add      /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/target10:0:0/10:0:0:0/bsg/10:0:0:0 (bsg)
ACTION=add
DEVNAME=/dev/bsg/10:0:0:0
DEVPATH=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/target10:0:0/10:0:0:0/bsg/10:0:0:0
MAJOR=253
MINOR=1
SEQNUM=2307
SUBSYSTEM=bsg
UDEV_LOG=3
USEC_INITIALIZED=571778137

UDEV  [571.780979] add      /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/target10:0:0/10:0:0:0/scsi_generic/sg1 (scsi_generic)
ACTION=add
DEVNAME=/dev/sg1
DEVPATH=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/target10:0:0/10:0:0:0/scsi_generic/sg1
MAJOR=21
MINOR=1
SEQNUM=2306
SUBSYSTEM=scsi_generic
UDEV_LOG=3
USEC_INITIALIZED=571778070

UDEV  [571.782604] add      /devices/virtual/bdi/8:16 (bdi)
ACTION=add
DEVPATH=/devices/virtual/bdi/8:16
SEQNUM=2308
SUBSYSTEM=bdi
UDEV_LOG=3
USEC_INITIALIZED=571782539

UDEV  [572.386708] add      /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/target10:0:0/10:0:0:0/block/sdb (block)
ACTION=add
DEVLINKS=/dev/disk/by-id/usb-OLYMPUS_VG130_D710_UEH111709-0:0 /dev/disk/by-path/pci-0000:00:1a.0-usb-0:1.2:1.0-scsi-0:0:0:0
DEVNAME=/dev/sdb
DEVPATH=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/target10:0:0/10:0:0:0/block/sdb
DEVTYPE=disk
ID_BUS=usb
ID_INSTANCE=0:0
ID_MODEL=VG130_D710
ID_MODEL_ENC=VG130\x2cD710\x20\x20\x20\x20\x20\x20
ID_MODEL_ID=0126
ID_PATH=pci-0000:00:1a.0-usb-0:1.2:1.0-scsi-0:0:0:0
ID_PATH_TAG=pci-0000_00_1a_0-usb-0_1_2_1_0-scsi-0_0_0_0
ID_REVISION=1.00
ID_SERIAL=OLYMPUS_VG130_D710_UEH111709-0:0
ID_SERIAL_SHORT=UEH111709
ID_TYPE=disk
ID_USB_DRIVER=usb-storage
ID_USB_INTERFACES=:080650:
ID_USB_INTERFACE_NUM=00
ID_VENDOR=OLYMPUS
ID_VENDOR_ENC=OLYMPUS\x20
ID_VENDOR_ID=07b4
MAJOR=8
MINOR=16
SEQNUM=2309
SUBSYSTEM=block
UDEV_LOG=3
UDISKS_PRESENTATION_NOPOLICY=0
USEC_INITIALIZED=572381611

UDEV  [572.994077] add      /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/target10:0:0/10:0:0:0/block/sdb/sdb1 (block)
ACTION=add
DEVLINKS=/dev/disk/by-id/usb-OLYMPUS_VG130_D710_UEH111709-0:0-part1 /dev/disk/by-path/pci-0000:00:1a.0-usb-0:1.2:1.0-scsi-0:0:0:0-part1
DEVNAME=/dev/sdb1
DEVPATH=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host10/target10:0:0/10:0:0:0/block/sdb/sdb1
DEVTYPE=partition
ID_BUS=usb
ID_INSTANCE=0:0
ID_MODEL=VG130_D710
ID_MODEL_ENC=VG130\x2cD710\x20\x20\x20\x20\x20\x20
ID_MODEL_ID=0126
ID_PATH=pci-0000:00:1a.0-usb-0:1.2:1.0-scsi-0:0:0:0
ID_PATH_TAG=pci-0000_00_1a_0-usb-0_1_2_1_0-scsi-0_0_0_0
ID_REVISION=1.00
ID_SERIAL=OLYMPUS_VG130_D710_UEH111709-0:0
ID_SERIAL_SHORT=UEH111709
ID_TYPE=disk
ID_USB_DRIVER=usb-storage
ID_USB_INTERFACES=:080650:
ID_USB_INTERFACE_NUM=00
ID_VENDOR=OLYMPUS
ID_VENDOR_ENC=OLYMPUS\x20
ID_VENDOR_ID=07b4
MAJOR=8
MINOR=17
SEQNUM=2310
SUBSYSTEM=block
UDEV_LOG=3
UDISKS_PRESENTATION_NOPOLICY=0
USEC_INITIALIZED=572993819