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

UEVENT[1188580401.167715] add      /devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c (ieee1394)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c
SUBSYSTEM=ieee1394
SEQNUM=2627
PHYSDEVBUS=ieee1394

UEVENT[1188580401.167850] add      /class/ieee1394_node/001010054000080c (ieee1394_node)
ACTION=add
DEVPATH=/class/ieee1394_node/001010054000080c
SUBSYSTEM=ieee1394_node
SEQNUM=2628
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c
PHYSDEVBUS=ieee1394

UEVENT[1188580401.167886] add      /devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0 (ieee1394)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0
SUBSYSTEM=ieee1394
SEQNUM=2629
PHYSDEVBUS=ieee1394

UEVENT[1188580401.167919] add      /class/scsi_host/host1 (scsi_host)
ACTION=add
DEVPATH=/class/scsi_host/host1
SUBSYSTEM=scsi_host
SEQNUM=2630
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1

UDEV  [1188580401.174716] add      /devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c (ieee1394)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c
SUBSYSTEM=ieee1394
SEQNUM=2627
PHYSDEVBUS=ieee1394
UDEVD_EVENT=1

UDEV  [1188580401.180952] add      /class/ieee1394_node/001010054000080c (ieee1394_node)
UDEV_LOG=3
ACTION=add
DEVPATH=/class/ieee1394_node/001010054000080c
SUBSYSTEM=ieee1394_node
SEQNUM=2628
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c
PHYSDEVBUS=ieee1394
UDEVD_EVENT=1

UDEV  [1188580401.261861] add      /devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0 (ieee1394)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0
SUBSYSTEM=ieee1394
SEQNUM=2629
PHYSDEVBUS=ieee1394
UDEVD_EVENT=1

UDEV  [1188580401.277450] add      /class/scsi_host/host1 (scsi_host)
UDEV_LOG=3
ACTION=add
DEVPATH=/class/scsi_host/host1
SUBSYSTEM=scsi_host
SEQNUM=2630
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1
UDEVD_EVENT=1

UEVENT[1188580402.173567] add      /devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0 (scsi)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
SUBSYSTEM=scsi
SEQNUM=2631
PHYSDEVBUS=scsi

UEVENT[1188580402.173630] add      /class/scsi_disk/1:0:0:0 (scsi_disk)
ACTION=add
DEVPATH=/class/scsi_disk/1:0:0:0
SUBSYSTEM=scsi_disk
SEQNUM=2632
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd

UEVENT[1188580402.203192] add      /block/sda (block)
ACTION=add
DEVPATH=/block/sda
SUBSYSTEM=block
SEQNUM=2633
MINOR=0
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd

UEVENT[1188580402.203282] add      /block/sda/sda1 (block)
ACTION=add
DEVPATH=/block/sda/sda1
SUBSYSTEM=block
SEQNUM=2634
MINOR=1
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd

UEVENT[1188580402.203320] add      /block/sda/sda3 (block)
ACTION=add
DEVPATH=/block/sda/sda3
SUBSYSTEM=block
SEQNUM=2635
MINOR=3
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd

UEVENT[1188580402.203354] add      /block/sda/sda4 (block)
ACTION=add
DEVPATH=/block/sda/sda4
SUBSYSTEM=block
SEQNUM=2636
MINOR=4
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd

UEVENT[1188580402.203387] add      /class/scsi_device/1:0:0:0 (scsi_device)
ACTION=add
DEVPATH=/class/scsi_device/1:0:0:0
SUBSYSTEM=scsi_device
SEQNUM=2637
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd

UEVENT[1188580402.203430] add      /class/scsi_generic/sg0 (scsi_generic)
ACTION=add
DEVPATH=/class/scsi_generic/sg0
SUBSYSTEM=scsi_generic
SEQNUM=2638
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
MAJOR=21
MINOR=0

UEVENT[1188580402.203467] add      /class/ieee1394/001010054000080c-0 (ieee1394)
ACTION=add
DEVPATH=/class/ieee1394/001010054000080c-0
SUBSYSTEM=ieee1394
SEQNUM=2639
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0
PHYSDEVBUS=ieee1394
PHYSDEVDRIVER=sbp2
VENDOR_ID=000000
MODEL_ID=000201
GUID=001010054000080c
SPECIFIER_ID=00609e
VERSION=010483
MODALIAS=ieee1394:ven00000000mo00000201sp0000609Ever00010483

UDEV  [1188580402.573008] add      /devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0 (scsi)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
SUBSYSTEM=scsi
SEQNUM=2631
PHYSDEVBUS=scsi
UDEVD_EVENT=1

UDEV  [1188580402.600998] add      /class/scsi_disk/1:0:0:0 (scsi_disk)
UDEV_LOG=3
ACTION=add
DEVPATH=/class/scsi_disk/1:0:0:0
SUBSYSTEM=scsi_disk
SEQNUM=2632
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
UDEVD_EVENT=1

UDEV  [1188580402.601071] add      /class/scsi_device/1:0:0:0 (scsi_device)
UDEV_LOG=3
ACTION=add
DEVPATH=/class/scsi_device/1:0:0:0
SUBSYSTEM=scsi_device
SEQNUM=2637
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
UDEVD_EVENT=1

UDEV  [1188580402.601112] add      /class/scsi_generic/sg0 (scsi_generic)
UDEV_LOG=3
ACTION=add
DEVPATH=/class/scsi_generic/sg0
SUBSYSTEM=scsi_generic
SEQNUM=2638
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
MAJOR=21
MINOR=0
UDEVD_EVENT=1
DEVNAME=/dev/sg0

UDEV  [1188580402.990004] add      /class/ieee1394/001010054000080c-0 (ieee1394)
UDEV_LOG=3
ACTION=add
DEVPATH=/class/ieee1394/001010054000080c-0
SUBSYSTEM=ieee1394
SEQNUM=2639
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0
PHYSDEVBUS=ieee1394
PHYSDEVDRIVER=sbp2
VENDOR_ID=000000
MODEL_ID=000201
GUID=001010054000080c
SPECIFIER_ID=00609e
VERSION=010483
MODALIAS=ieee1394:ven00000000mo00000201sp0000609Ever00010483
UDEVD_EVENT=1

UDEV  [1188580403.009024] add      /block/sda (block)
UDEV_LOG=3
ACTION=add
DEVPATH=/block/sda
SUBSYSTEM=block
SEQNUM=2633
MINOR=0
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
UDEVD_EVENT=1
ID_SERIAL=001010054000080c:0:0
ID_BUS=ieee1394
ID_PATH=pci-0000:00:12.4-ieee1394-0x001010054000080c:0:0
DEVNAME=/dev/sda
DEVLINKS=/dev/disk/by-id/ieee1394-001010054000080c:0:0 /dev/disk/by-path/pci-0000:00:12.4-ieee1394-0x001010054000080c:0:0

UDEV  [1188580403.131712] add      /block/sda/sda3 (block)
UDEV_LOG=3
ACTION=add
DEVPATH=/block/sda/sda3
SUBSYSTEM=block
SEQNUM=2635
MINOR=3
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
UDEVD_EVENT=1
ID_SERIAL=001010054000080c:0:0
ID_BUS=ieee1394
ID_PATH=pci-0000:00:12.4-ieee1394-0x001010054000080c:0:0
ID_FS_USAGE=filesystem
ID_FS_TYPE=ext3
ID_FS_VERSION=1.0
ID_FS_UUID=e6c5cc37-7108-48aa-9507-4481b38f402a
ID_FS_LABEL=big3
ID_FS_LABEL_SAFE=big3
DEVNAME=/dev/sda3
DEVLINKS=/dev/disk/by-id/ieee1394-001010054000080c:0:0-part3 /dev/disk/by-path/pci-0000:00:12.4-ieee1394-0x001010054000080c:0:0-part3 /dev/disk/by-uuid/e6c5cc37-7108-48aa-9507-4481b38f402a /dev/disk/by-label/big3

UDEV  [1188580403.188564] add      /block/sda/sda1 (block)
UDEV_LOG=3
ACTION=add
DEVPATH=/block/sda/sda1
SUBSYSTEM=block
SEQNUM=2634
MINOR=1
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
UDEVD_EVENT=1
ID_SERIAL=001010054000080c:0:0
ID_BUS=ieee1394
ID_PATH=pci-0000:00:12.4-ieee1394-0x001010054000080c:0:0
ID_FS_USAGE=filesystem
ID_FS_TYPE=ext3
ID_FS_VERSION=1.0
ID_FS_UUID=0149c5d9-fa29-4a75-9ebc-73edcd0eadea
ID_FS_LABEL=big1
ID_FS_LABEL_SAFE=big1
DEVNAME=/dev/sda1
DEVLINKS=/dev/disk/by-id/ieee1394-001010054000080c:0:0-part1 /dev/disk/by-path/pci-0000:00:12.4-ieee1394-0x001010054000080c:0:0-part1 /dev/disk/by-uuid/0149c5d9-fa29-4a75-9ebc-73edcd0eadea /dev/disk/by-label/big1

UDEV  [1188580403.569047] add      /block/sda/sda4 (block)
UDEV_LOG=3
ACTION=add
DEVPATH=/block/sda/sda4
SUBSYSTEM=block
SEQNUM=2636
MINOR=4
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
UDEVD_EVENT=1
ID_SERIAL=001010054000080c:0:0
ID_BUS=ieee1394
ID_PATH=pci-0000:00:12.4-ieee1394-0x001010054000080c:0:0
ID_FS_USAGE=filesystem
ID_FS_TYPE=ext3
ID_FS_VERSION=1.0
ID_FS_UUID=6d3e8ba1-add4-4636-a8c3-3be7c18853ad
ID_FS_LABEL=big4
ID_FS_LABEL_SAFE=big4
DEVNAME=/dev/sda4
DEVLINKS=/dev/disk/by-id/ieee1394-001010054000080c:0:0-part4 /dev/disk/by-path/pci-0000:00:12.4-ieee1394-0x001010054000080c:0:0-part4 /dev/disk/by-uuid/6d3e8ba1-add4-4636-a8c3-3be7c18853ad /dev/disk/by-label/big4

UEVENT[1188580404.042269] mount    /block/sda/sda3 (block)
ACTION=mount
DEVPATH=/block/sda/sda3
SUBSYSTEM=block
SEQNUM=2640
MINOR=3
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd

UDEV  [1188580404.046527] mount    /block/sda/sda3 (block)
UDEV_LOG=3
ACTION=mount
DEVPATH=/block/sda/sda3
SUBSYSTEM=block
SEQNUM=2640
MINOR=3
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
UDEVD_EVENT=1

UEVENT[1188580404.810230] mount    /block/sda/sda4 (block)
ACTION=mount
DEVPATH=/block/sda/sda4
SUBSYSTEM=block
SEQNUM=2641
MINOR=4
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd

UDEV  [1188580404.814424] mount    /block/sda/sda4 (block)
UDEV_LOG=3
ACTION=mount
DEVPATH=/block/sda/sda4
SUBSYSTEM=block
SEQNUM=2641
MINOR=4
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/001010054000080c/001010054000080c-0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
UDEVD_EVENT=1

UEVENT[1188580405.165297] mount    /block/sda/sda1 (block)
ACTION=mount
DEVPATH=/block/sda/sda1
SUBSYSTEM=block
SEQNUM=2642
MINOR=1
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:12.4/fw-host0/0010100540