USB v?

[der.hans]

Am 05. Mar, 2007 schwätzte Eric "Shubes" so:

> der.hans wrote:
>> moin moin,
>>
>> anyone know how to tell what USB protocol version is being used to talk to
>> a device?
>>
>> I'm pretty certain the devices is v 2.0 capable. I'm not sure about the
>> USB port it's connected to. Any way to find out what versions the physical
>> port supports?
>>
>> Any way to find out what version is actually being used to talk to the
>> device?
>>
>> It's probably in the lsusb output somewhere, but it's not making sense to
>> me right now.
>>
>> ciao,
>>
>> der.hans
>
> On my system, lspci shows USB 1.0 clear as day.

Hmmm. Does rev 02 mean 2.0?

> I don't know about what version is actually being used though. That would be
> an attribute of the connection. I'm guess it'd be in /proc somewhere (when
> the device in question is connected, of course).
>
> Methinks you might need a little sleep, dh. ;)

Yes, I did. s/did/do/. Especially when I didn't think to confirm that
there are even less than 2.0 devices on the box. I still would've needed
to ask, it would've been good to say.

00:1d.0 USB Controller: Intel Corporation 6300ESB USB Universal Host
Controller (rev 02)
00:1d.1 USB Controller: Intel Corporation 6300ESB USB Universal Host
Controller (rev 02)
00:1d.7 USB Controller: Intel Corporation 6300ESB USB2 Enhanced Host
Controller (rev 02)

-v and -vv still don't say in plain english, but are harder to grep.

00:1d.0 USB Controller: Intel Corporation 6300ESB USB Universal Host
Controller
(rev 02) (prog-if 00 [UHCI])
         Subsystem: Super Micro Computer Inc: Unknown device 6080
         Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
         Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
         Latency: 0
         Interrupt: pin A routed to IRQ 169
         Region 4: I/O ports at 1400 [size=32]

danke,

der.hans
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