Re: [Hampshire] USB2, how to tell

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Author: Hugo Mills
Date:  
To: Hampshire LUG Discussion List
Subject: Re: [Hampshire] USB2, how to tell

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gpg: failed to create temporary file '/var/lib/lurker/.#lk0x57649100.hantslug.org.uk.2408': Permission denied
gpg: keyblock resource '/var/lib/lurker/pubring.gpg': Permission denied
gpg: Signature made Fri Aug 24 11:14:05 2007 BST
gpg: using DSA key B2C27BC21C335860
gpg: Can't check signature: No public key
On Thu, Aug 23, 2007 at 11:44:16PM +0100, Tim wrote:
> On Thu August 23 2007 18:22, Hugo Mills wrote:
> >    lsusb -v will tell you -- look for the Hub devices, and the bcdUSB
> > parameter for those.

> >
> >    Alternatively, the key information to look for in the kernel output
> > is the phrase EHCI. (AHCI and OHCI are USB 1.1 -- you will probably
> > have one or other of those for each USB port, too, as EHCI covers USB
> > 2.0 only). The USB 2.0 driver is ehci_hcd.

>
> ohci_hcd 0000:00:0f.2: ServerWorks OSB4/CSB5 OHCI USB controller
>
> So I guess that means it USB 1 or 1.1


Try loading the ehci_hcd driver as well, and tail -f your system
log at the same time. You may get messages about EHCI as well, in
which case you may have USB 2.0.

Hugo.

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=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
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