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

UEVENT[1206731835.437106] add      /devices/pci0000:00/0000:00:1d.7/usb5/5-5 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5
SUBSYSTEM=usb
MAJOR=189
MINOR=520
DEVTYPE=usb_device
DEVICE=/proc/bus/usb/005/009
PRODUCT=13fe/1d00/110
TYPE=0/0/0
BUSNUM=005
DEVNUM=009
SEQNUM=2878

UDEV  [1206731835.438305] add      /devices/pci0000:00/0000:00:1d.7/usb5/5-5 (usb)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5
SUBSYSTEM=usb
MAJOR=189
MINOR=520
DEVTYPE=usb_device
DEVICE=/proc/bus/usb/005/009
PRODUCT=13fe/1d00/110
TYPE=0/0/0
BUSNUM=005
DEVNUM=009
SEQNUM=2878
UDEVD_EVENT=1
DEVNAME=/dev/bus/usb/005/009

UEVENT[1206731835.438317] add      /devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0
SUBSYSTEM=usb
DEVTYPE=usb_interface
DEVICE=/proc/bus/usb/005/009
PRODUCT=13fe/1d00/110
TYPE=0/0/0
INTERFACE=8/6/80
MODALIAS=usb:v13FEp1D00d0110dc00dsc00dp00ic08isc06ip50
SEQNUM=2880

UDEV  [1206731835.439146] add      /devices/pci0000:00/0000:00:1d.7/usb5/5-5/usb_endpoint/usbdev5.9_ep00 (usb_endpoint)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/usb_endpoint/usbdev5.9_ep00
SUBSYSTEM=usb_endpoint
MAJOR=254
MINOR=12
SEQNUM=2879
UDEVD_EVENT=1
DEVNAME=/dev/usbdev5.9_ep00

UEVENT[1206731835.440320] add      /class/scsi_host/host7 (scsi_host)
ACTION=add
DEVPATH=/class/scsi_host/host7
SUBSYSTEM=scsi_host
PHYSDEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7
SEQNUM=2881

UEVENT[1206731835.440464] add      /devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/usb_endpoint/usbdev5.9_ep81 (usb_endpoint)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/usb_endpoint/usbdev5.9_ep81
SUBSYSTEM=usb_endpoint
MAJOR=254
MINOR=13
SEQNUM=2882

UEVENT[1206731835.440510] add      /devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/usb_endpoint/usbdev5.9_ep02 (usb_endpoint)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/usb_endpoint/usbdev5.9_ep02
SUBSYSTEM=usb_endpoint
MAJOR=254
MINOR=14
SEQNUM=2883

UDEV  [1206731835.475716] add      /devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0 (usb)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0
SUBSYSTEM=usb
DEVTYPE=usb_interface
DEVICE=/proc/bus/usb/005/009
PRODUCT=13fe/1d00/110
TYPE=0/0/0
INTERFACE=8/6/80
MODALIAS=usb:v13FEp1D00d0110dc00dsc00dp00ic08isc06ip50
SEQNUM=2880
UDEVD_EVENT=1

UDEV  [1206731835.476558] add      /class/scsi_host/host7 (scsi_host)
UDEV_LOG=3
ACTION=add
DEVPATH=/class/scsi_host/host7
SUBSYSTEM=scsi_host
PHYSDEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7
SEQNUM=2881
UDEVD_EVENT=1

UDEV  [1206731835.477409] add      /devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/usb_endpoint/usbdev5.9_ep81 (usb_endpoint)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/usb_endpoint/usbdev5.9_ep81
SUBSYSTEM=usb_endpoint
MAJOR=254
MINOR=13
SEQNUM=2882
UDEVD_EVENT=1
DEVNAME=/dev/usbdev5.9_ep81

UDEV  [1206731835.478338] add      /devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/usb_endpoint/usbdev5.9_ep02 (usb_endpoint)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/usb_endpoint/usbdev5.9_ep02
SUBSYSTEM=usb_endpoint
MAJOR=254
MINOR=14
SEQNUM=2883
UDEVD_EVENT=1
DEVNAME=/dev/usbdev5.9_ep02

UEVENT[1206731840.440885] add      /devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7/target7:0:0/7:0:0:0 (scsi)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7/target7:0:0/7:0:0:0
SUBSYSTEM=scsi
DEVTYPE=scsi_device
MODALIAS=scsi:t-0x00
SEQNUM=2884

UEVENT[1206731840.440913] add      /class/scsi_disk/7:0:0:0 (scsi_disk)
ACTION=add
DEVPATH=/class/scsi_disk/7:0:0:0
SUBSYSTEM=scsi_disk
PHYSDEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7/target7:0:0/7:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
SEQNUM=2885

UDEV  [1206731840.496472] add      /devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7/target7:0:0/7:0:0:0 (scsi)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7/target7:0:0/7:0:0:0
SUBSYSTEM=scsi
DEVTYPE=scsi_device
MODALIAS=scsi:t-0x00
SEQNUM=2884
UDEVD_EVENT=1

UDEV  [1206731840.497196] add      /class/scsi_disk/7:0:0:0 (scsi_disk)
UDEV_LOG=3
ACTION=add
DEVPATH=/class/scsi_disk/7:0:0:0
SUBSYSTEM=scsi_disk
PHYSDEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7/target7:0:0/7:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
SEQNUM=2885
UDEVD_EVENT=1

UEVENT[1206731840.678004] add      /block/sdd (block)
ACTION=add
DEVPATH=/block/sdd
SUBSYSTEM=block
MINOR=48
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7/target7:0:0/7:0:0:0
PHYSDEVBUS=scsi
sd
SEQNUM=2886

UEVENT[1206731840.678022] add      /block/sdd/sdd1 (block)
ACTION=add
DEVPATH=/block/sdd/sdd1
SUBSYSTEM=block
MINOR=49
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7/target7:0:0/7:0:0:0
PHYSDEVBUS=scsi
sd
SEQNUM=2887

UEVENT[1206731840.678092] add      /class/scsi_device/7:0:0:0 (scsi_device)
ACTION=add
DEVPATH=/class/scsi_device/7:0:0:0
SUBSYSTEM=scsi_device
PHYSDEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7/target7:0:0/7:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
SEQNUM=2888

UEVENT[1206731840.678124] add      /class/scsi_generic/sg5 (scsi_generic)
ACTION=add
DEVPATH=/class/scsi_generic/sg5
SUBSYSTEM=scsi_generic
MAJOR=21
MINOR=5
PHYSDEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7/target7:0:0/7:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
SEQNUM=2889

UDEV  [1206731840.680220] add      /class/scsi_device/7:0:0:0 (scsi_device)
UDEV_LOG=3
ACTION=add
DEVPATH=/class/scsi_device/7:0:0:0
SUBSYSTEM=scsi_device
PHYSDEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7/target7:0:0/7:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
SEQNUM=2888
UDEVD_EVENT=1

UDEV  [1206731840.681434] add      /class/scsi_generic/sg5 (scsi_generic)
UDEV_LOG=3
ACTION=add
DEVPATH=/class/scsi_generic/sg5
SUBSYSTEM=scsi_generic
MAJOR=21
MINOR=5
PHYSDEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7/target7:0:0/7:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
SEQNUM=2889
UDEVD_EVENT=1
DEVNAME=/dev/sg5

UDEV  [1206731840.685452] add      /block/sdd (block)
UDEV_LOG=3
ACTION=add
DEVPATH=/block/sdd
SUBSYSTEM=block
MINOR=48
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7/target7:0:0/7:0:0:0
PHYSDEVBUS=scsi
SEQNUM=2886
UDEVD_EVENT=1
DEVTYPE=disk
ID_VENDOR=USB
ID_MODEL=Flash_Disk
ID_REVISION=V1.1
ID_SERIAL=USB_Flash_Disk_90711B002443-0:0
ID_SERIAL_SHORT=90711B002443
ID_TYPE=disk
ID_INSTANCE=0:0
ID_BUS=usb
ID_PATH=pci-0000:00:1d.7-usb-0:5:1.0-scsi-0:0:0:0
DEVNAME=/dev/sdd
DEVLINKS=/dev/disk/by-id/usb-USB_Flash_Disk_90711B002443-0:0 /dev/disk/by-path/pci-0000:00:1d.7-usb-0:5:1.0-scsi-0:0:0:0

UEVENT[1206731840.688187] add      /kernel/uids/65534 (kernel)
ACTION=add
DEVPATH=/kernel/uids/65534
SUBSYSTEM=kernel
SEQNUM=2890

UDEV  [1206731840.688627] add      /kernel/uids/65534 (kernel)
UDEV_LOG=3
ACTION=add
DEVPATH=/kernel/uids/65534
SUBSYSTEM=kernel
SEQNUM=2890
UDEVD_EVENT=1

UDEV  [1206731840.932437] add      /block/sdd/sdd1 (block)
UDEV_LOG=3
ACTION=add
DEVPATH=/block/sdd/sdd1
SUBSYSTEM=block
MINOR=49
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7/target7:0:0/7:0:0:0
PHYSDEVBUS=scsi
SEQNUM=2887
UDEVD_EVENT=1
DEVTYPE=partition
ID_VENDOR=USB
ID_MODEL=Flash_Disk
ID_REVISION=V1.1
ID_SERIAL=USB_Flash_Disk_90711B002443-0:0
ID_SERIAL_SHORT=90711B002443
ID_TYPE=disk
ID_INSTANCE=0:0
ID_BUS=usb
ID_PATH=pci-0000:00:1d.7-usb-0:5:1.0-scsi-0:0:0:0
ID_FS_USAGE=filesystem
ID_FS_TYPE=vfat
ID_FS_VERSION=FAT32
ID_FS_UUID=4225-12FD
ID_FS_UUID_ENC=4225-12FD
ID_FS_LABEL=HUMPPA
ID_FS_LABEL_ENC=HUMPPA
ID_FS_LABEL_SAFE=HUMPPA
DEVNAME=/dev/sdd1
DEVLINKS=/dev/disk/by-id/usb-USB_Flash_Disk_90711B002443-0:0-part1 /dev/disk/by-path/pci-0000:00:1d.7-usb-0:5:1.0-scsi-0:0:0:0-part1 /dev/disk/by-uuid/4225-12FD /dev/disk/by-label/HUMPPA

UEVENT[1206731840.943185] remove   /kernel/uids/65534 (kernel)
ACTION=remove
DEVPATH=/