more usb

[chuck lawrence]

Mark Knecht wrote:

| cat /proc/bus/usb/devices and look at the "Ver=" entry. From my Gentoo
| laptop. Note: The driver is also a good clue, I think. ehci is 2.0.
| ohci is 1.1.

and then...

Rick Stevens <rstevens at vitalstream.com> wrote:

| "Spd=480" is 480Mbps and that's USB2.  If it said "Spd=12", NOW you've
| got USB1.1 (12Mbps), and now you know why they say USB2 is 40 times
| faster than USB1.1 (480/12 = 40).  Simple, no?


this is very helpful.  however, in my /proc/bus/usb/devices, I have...

  cat /proc/bus/usb/devices | grep Spd
T:  Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 3
T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 3
T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=12  MxCh= 0
T:  Bus=01 Lev=01 Prnt=01 Port=01 Cnt=02 Dev#=  3 Spd=12  MxCh= 0

and...

  cat /proc/bus/usb/devices | grep Ver
D:  Ver= 1.10 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
D:  Ver= 1.10 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1

and yet...

  cat /proc/bus/usb/devices | grep -i hci
S:  Product=USB OHCI Root Hub
S:  Product=USB OHCI Root Hub


so, do I have both (Ver=)?  there are usb ports front and back.  if so, 
do I not see any Spd=480 or EHCI because I don't have any devices 
plugged into the 2.0 ports?  also, back to my original, secondary 
questions...

why is "mkfs -V /dev/sdb1" crashing my system?

adv<thanks>ance