Re: [Hampshire] USB2, how to tell

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Author: Tim
Date:  
To: Hampshire LUG Discussion List
Subject: Re: [Hampshire] USB2, how to tell
On Thu August 23 2007 18:22, Hugo Mills wrote:
> On Thu, Aug 23, 2007 at 05:51:13PM +0100, Tim wrote:
> > How can I tell if I the USB on my motherboard is USB2 or not. I
> > don't want to take the server down at the moment, which I would have
> > to do to be able to remove the side panels etc to check the chips
> > Motherboard type (I inherited the server. Not only that I can't get
> > to the usb sockets without removing the server which means taking it
> > down). I had a look in dmesg and while there are some line regarding
> > usb it does not really say one way or the other.
>
>    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.

>
>    Hugo.


Cheer Hugo, I have

ohci_hcd 0000:00:0f.2: ServerWorks OSB4/CSB5 OHCI USB controller

So I guess that means it USB 1 or 1.1

Oh well controller cards are cheap enough

Tim