Understanding HP-UX 11i v2 and v3 USB ioscan

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In this example,
“USB Mass Storage [0]” corresponds to SCSI target 0 with hwpath “255/0/0.0”
“USB Mass Storage [1]” corresponds to SCSI target 1 with hwpath “255/0/0.1”
“USB Mass Storage [2]” corresponds to SCSI target 2 with hwpath “255/0/0.2”
And more generally:
“USB Mass Storage [N]” corresponds to SCSI target N with hwpath “255/0/0.N”
Sample Mass Storage SCSI ”ioscan -N”, agile view
The following sample is a section of an ”ioscan –N” output that shows the
ESCSI interface nodes corresponding to a single USB mass storage device.
This view is the I/O agile view, introduced in 11iv3. The USB mass
storage device node appears under the mass_storage driver claimed by a
virtual SCSI bus (VIRTBUS), with the interface driver, usb_ms_scsi, a
virtual controller, as was seen in the legacy view. The TARGET path and
LUN path nodes appear under the usb_ms_scsi driver for this device.
These nodes have no device special filenames(DSFs) associated with them,
but refer to the persistent DSF, as seen in the LUN path description,
“LUN path for disk10”. The disk10 node is shown under the Escsi virtual
root as disk, instance 10, accessed with the persistent DSF,
/dev/disk/disk10.
usbmsvbus 0 64000/0x0 mass_storage CLAIMED VIRTBUS USB Mass Storage
escsi_ctlr 1 64000/0x0/0x0 usb_ms_scsi CLAIMED INTERFACE USB Mass Storage Virt Ctlr
tgtpath 3 64000/0x0/0x0.0x0 estp CLAIMED TGT_PATH usb target served by usb_ms_scsi
driver, target port id 0x0
lunpath 3 64000/0x0/0x0.0x0.0x0 eslpt CLAIMED LUN_PATH LUN path for disk10
…
esvroot 0 64000/0xfa00 esvroot CLAIMED VIRTBUS Escsi virtual root
disk 4 64000/0xfa00/0x0 esdisk CLAIMED DEVICE HP DG036A8B5B
disk 5 64000/0xfa00/0x1 esdisk CLAIMED DEVICE HP DG072A8B54
disk 10 64000/0xfa00/0x9 esdisk CLAIMED DEVICE HP
USB H/W Path Definition
The generic representation of the USB H/W Path in the USB controller and
device section of ioscan is:
/0/0/PCI#/USB_ctl_#.port[.interface]
where
- PCI# is the PCI bus instance
- USB_ctl_# is the USB controller instance number
- port is the USB port number
- interface is the device interface # (used for composite devices)
vMedia Devices
vMedia attached devices are remote USB devices attached to a Windows PC,
typically a laptop. A network connection between the HP-UX server and
Windows laptop make the laptop USB devices visible to HP-UX as virtual
USB devices at the server. These USB devices are presented to HP-UX as
distinct USB device interfaces of a composite device. The sample USB
Controller and Device ioscan output shows vMedia under the first OHCI
controller. This composite device consists of a keyboard, a mouse and a