udevadm monitor --property # plug into left port

# udevadm monitor --property # plug into left port
monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent

KERNEL[66828.777593] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2 (usb)
ACTION=add
BUSNUM=002
DEVNAME=/dev/bus/usb/002/013
DEVNUM=013
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2
DEVTYPE=usb_device
MAJOR=189
MINOR=140
PRODUCT=930/6545/100
SEQNUM=2024
SUBSYSTEM=usb
TYPE=0/0/0

KERNEL[66828.778752] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0
DEVTYPE=usb_interface
INTERFACE=8/6/80
MODALIAS=usb:v0930p6545d0100dc00dsc00dp00ic08isc06ip50in00
PRODUCT=930/6545/100
SEQNUM=2025
SUBSYSTEM=usb
TYPE=0/0/0

KERNEL[66828.780657] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16 (scsi)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16
DEVTYPE=scsi_host
SEQNUM=2026
SUBSYSTEM=scsi

KERNEL[66828.780822] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/scsi_host/host16 (scsi_host)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/scsi_host/host16
SEQNUM=2027
SUBSYSTEM=scsi_host

UDEV  [66828.786524] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2 (usb)
ACTION=add
BUSNUM=002
DEVNAME=/dev/bus/usb/002/013
DEVNUM=013
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2
DEVTYPE=usb_device
ID_BUS=usb
ID_MODEL=DT_101_G2
ID_MODEL_ENC=DT\x20101\x20G2\x20\x20\x20\x20\x20\x20\x20
ID_MODEL_ID=6545
ID_REVISION=0100
ID_SERIAL=Kingston_DT_101_G2_00137275D21CBA7035AF0347
ID_SERIAL_SHORT=00137275D21CBA7035AF0347
ID_USB_INTERFACES=:080650:
ID_VENDOR=Kingston
ID_VENDOR_ENC=Kingston
ID_VENDOR_ID=0930
MAJOR=189
MINOR=140
PRODUCT=930/6545/100
SEQNUM=2024
SUBSYSTEM=usb
TYPE=0/0/0
USEC_INITIALIZED=828777617

UDEV  [66828.790957] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0
DEVTYPE=usb_interface
INTERFACE=8/6/80
MODALIAS=usb:v0930p6545d0100dc00dsc00dp00ic08isc06ip50in00
PRODUCT=930/6545/100
SEQNUM=2025
SUBSYSTEM=usb
TYPE=0/0/0
USEC_INITIALIZED=8778972

UDEV  [66828.791523] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16 (scsi)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16
DEVTYPE=scsi_host
SEQNUM=2026
SUBSYSTEM=scsi
USEC_INITIALIZED=8780341

UDEV  [66828.792393] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/scsi_host/host16 (scsi_host)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/scsi_host/host16
SEQNUM=2027
SUBSYSTEM=scsi_host
USEC_INITIALIZED=8780437

KERNEL[66829.820690] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0 (scsi)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0
DEVTYPE=scsi_target
SEQNUM=2028
SUBSYSTEM=scsi

KERNEL[66829.820923] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0 (scsi)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0
DEVTYPE=scsi_device
MODALIAS=scsi:t-0x00
SEQNUM=2029
SUBSYSTEM=scsi

KERNEL[66829.821088] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/scsi_disk/16:0:0:0 (scsi_disk)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/scsi_disk/16:0:0:0
SEQNUM=2030
SUBSYSTEM=scsi_disk

KERNEL[66829.821226] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/scsi_device/16:0:0:0 (scsi_device)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/scsi_device/16:0:0:0
SEQNUM=2031
SUBSYSTEM=scsi_device

KERNEL[66829.821727] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/bsg/16:0:0:0 (bsg)
ACTION=add
DEVNAME=/dev/bsg/16:0:0:0
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/bsg/16:0:0:0
MAJOR=252
MINOR=2
SEQNUM=2032
SUBSYSTEM=bsg

UDEV  [66829.823152] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0 (scsi)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0
DEVTYPE=scsi_target
SEQNUM=2028
SUBSYSTEM=scsi
USEC_INITIALIZED=9821482

UDEV  [66829.824358] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0 (scsi)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0
DEVTYPE=scsi_device
MODALIAS=scsi:t-0x00
SEQNUM=2029
SUBSYSTEM=scsi
USEC_INITIALIZED=9821728

UDEV  [66829.827976] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/scsi_disk/16:0:0:0 (scsi_disk)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/scsi_disk/16:0:0:0
SEQNUM=2030
SUBSYSTEM=scsi_disk
USEC_INITIALIZED=9821867

UDEV  [66829.830509] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/scsi_device/16:0:0:0 (scsi_device)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/scsi_device/16:0:0:0
SEQNUM=2031
SUBSYSTEM=scsi_device
USEC_INITIALIZED=829821925

UDEV  [66829.830823] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/bsg/16:0:0:0 (bsg)
ACTION=add
DEVNAME=/dev/bsg/16:0:0:0
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/bsg/16:0:0:0
MAJOR=252
MINOR=2
SEQNUM=2032
SUBSYSTEM=bsg
USEC_INITIALIZED=829822057

KERNEL[66830.853647] add      /devices/virtual/bdi/8:16 (bdi)
ACTION=add
DEVPATH=/devices/virtual/bdi/8:16
SEQNUM=2033
SUBSYSTEM=bdi

UDEV  [66830.855018] add      /devices/virtual/bdi/8:16 (bdi)
ACTION=add
DEVPATH=/devices/virtual/bdi/8:16
SEQNUM=2033
SUBSYSTEM=bdi
USEC_INITIALIZED=853844

KERNEL[66830.886618] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/block/sdb (block)
ACTION=add
DEVNAME=/dev/sdb
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/block/sdb
DEVTYPE=disk
MAJOR=8
MINOR=16
SEQNUM=2034
SUBSYSTEM=block

KERNEL[66830.886711] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/block/sdb/sdb1 (block)
ACTION=add
DEVNAME=/dev/sdb1
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/block/sdb/sdb1
DEVTYPE=partition
MAJOR=8
MINOR=17
SEQNUM=2035
SUBSYSTEM=block

UDEV  [66830.974072] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/block/sdb (block)
ACTION=add
DEVLINKS=/dev/disk/by-id/usb-Kingston_DT_101_G2_00137275D21CBA7035AF0347-0:0 /dev/disk/by-path/pci-0000:00:12.2-usb-0:2:1.0-scsi-0:0:0:0
DEVNAME=/dev/sdb
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/block/sdb
DEVTYPE=disk
ID_BUS=usb
ID_INSTANCE=0:0
ID_MODEL=DT_101_G2
ID_MODEL_ENC=DT\x20101\x20G2\x20\x20\x20\x20\x20\x20\x20
ID_MODEL_ID=6545
ID_PART_TABLE_TYPE=dos
ID_PATH=pci-0000:00:12.2-usb-0:2:1.0-scsi-0:0:0:0
ID_PATH_TAG=pci-0000_00_12_2-usb-0_2_1_0-scsi-0_0_0_0
ID_REVISION=PMAP
ID_SERIAL=Kingston_DT_101_G2_00137275D21CBA7035AF0347-0:0
ID_SERIAL_SHORT=00137275D21CBA7035AF0347
ID_TYPE=disk
ID_USB_DRIVER=usb-storage
ID_USB_INTERFACES=:080650:
ID_USB_INTERFACE_NUM=00
ID_VENDOR=Kingston
ID_VENDOR_ENC=Kingston
ID_VENDOR_ID=0930
MAJOR=8
MINOR=16
SEQNUM=2034
SUBSYSTEM=block
TAGS=:systemd:
UDISKS_PARTITION_TABLE=1
UDISKS_PARTITION_TABLE_COUNT=1
UDISKS_PARTITION_TABLE_SCHEME=mbr
UDISKS_PRESENTATION_NOPOLICY=0
USEC_INITIALIZED=885654

UDEV  [66831.079834] add      /devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/block/sdb/sdb1 (block)
ACTION=add
DEVLINKS=/dev/disk/by-id/usb-Kingston_DT_101_G2_00137275D21CBA7035AF0347-0:0-part1 /dev/disk/by-path/pci-0000:00:12.2-usb-0:2:1.0-scsi-0:0:0:0-part1 /dev/disk/by-uuid/993fa52f-3fe6-4c99-bc80-249faa4cb4cc
DEVNAME=/dev/sdb1
DEVPATH=/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/block/sdb/sdb1
DEVTYPE=partition
ID_BUS=usb
ID_FS_TYPE=ext4
ID_FS_USAGE=filesystem
ID_FS_UUID=993fa52f-3fe6-4c99-bc80-249faa4cb4cc
ID_FS_UUID_ENC=993fa52f-3fe6-4c99-bc80-249faa4cb4cc
ID_FS_VERSION=1.0
ID_INSTANCE=0:0
ID_MODEL=DT_101_G2
ID_MODEL_ENC=DT\x20101\x20G2\x20\x20\x20\x20\x20\x20\x20
ID_MODEL_ID=6545
ID_PART_ENTRY_DISK=8:16
ID_PART_ENTRY_FLAGS=0x80
ID_PART_ENTRY_NUMBER=1
ID_PART_ENTRY_OFFSET=32
ID_PART_ENTRY_SCHEME=dos
ID_PART_ENTRY_SIZE=7827424
ID_PART_ENTRY_TYPE=0x83
ID_PART_TABLE_TYPE=dos
ID_PATH=pci-0000:00:12.2-usb-0:2:1.0-scsi-0:0:0:0
ID_PATH_TAG=pci-0000_00_12_2-usb-0_2_1_0-scsi-0_0_0_0
ID_REVISION=PMAP
ID_SERIAL=Kingston_DT_101_G2_00137275D21CBA7035AF0347-0:0
ID_SERIAL_SHORT=00137275D21CBA7035AF0347
ID_TYPE=disk
ID_USB_DRIVER=usb-storage
ID_USB_INTERFACES=:080650:
ID_USB_INTERFACE_NUM=00
ID_VENDOR=Kingston
ID_VENDOR_ENC=Kingston
ID_VENDOR_ID=0930
MAJOR=8
MINOR=17
SEQNUM=2035
SUBSYSTEM=block
TAGS=:systemd:
UDISKS_PARTITION=1
UDISKS_PARTITION_ALIGNMENT_OFFSET=0
UDISKS_PARTITION_FLAGS=boot
UDISKS_PARTITION_NUMBER=1
UDISKS_PARTITION_OFFSET=16384
UDISKS_PARTITION_SCHEME=mbr
UDISKS_PARTITION_SIZE=4007641088
UDISKS_PARTITION_SLAVE=/sys/devices/pci0000:00/0000:00:12.2/usb2/2-2/2-2:1.0/host16/target16:0:0/16:0:0:0/block/sdb
UDISKS_PARTITION_TYPE=0x83
UDISKS_PRESENTATION_NOPOLICY=0
USEC_INITIALIZED=885898