Re: Generic USB 2.0 hub showing up as USB 1.1

> I have two generic 4-****t USB hubs that are supposed to be USB 2.0 
> compliant. The older one is fine, works as advertised. Meanwhile the 
> newer one sometimes shows up under the USB 2.0 root hub (i.e.
> "Standard Enhanced PCI to USB Host Controller"), or usually it shows
> up under the slower "Standard OpenHCD USB Host Controller" (USB 1.1).
> 
> My motherboard (Asus M2NPV-VM) USB ****ts are all USB 2.0 compliant,
> and they individually auto-detect whether they need to switch down to
> USB 1.1 speeds. I'm using a Microsoft tool called UVCView under
> Windows XP to display the details of the USB devices, including the
> hubs and roothubs. 
> 
> According to UVCView, the older hub and newer hub seem to have the
> same chipset vendor (idVendor = "Genesys Logic, Inc."), although
> externally they look quite different and have different brand names. 
> So I'm not sure why one would be consistently USB 2.0 compliant, while
> the other one is not.
> 
> Now another interesting thing I noticed is that the inconsistent hub 
> will only show up as USB 2.0-compliant after I boot into Windows after
> having previously rebooted from Ubuntu 7.10 Linux (dual-boot system).
> So maybe Linux does something to the device that puts it right. But
> when I list the devices while in Linux I see that it is listed under
> USB 1.1 just like when in Windows. I have no idea why Linux leaves the
> hub fixed for Windows, but doesn't fix it for itself?!
> 
> Any idea what's going on with this hub?
> 
>      Yousuf Khan

What you may want to do since you are running an Asus board, is go into 
Bios setup on bootup before your OS loads. Under one of the tabs across 
the top, there is a check for "I am using an OS that checks for plug and 
play" or something like that. It may be that your Bios is not setting 
the USB ****ts and allow only the operating system to do that. It sounds 
as if Windows is setting the USB ****t/hubs and then you switch into 
Linux. Anyway, might be worth a try.