On Thu, 17 Aug 2006, Lee Hartley wrote:
> hello all
> If I have a usb key plugged in when the system boots, it will not be
> initialized (no /dev/sdb1) if i unplug it and plug it back in it works
> fine...I am guessing it is a coldplug issue? I see errors like usb
> 1-5.2: device descriptor read/64, error -32 ....have seen others remove
> ehci_hcd and things working...I tried modprobe -r ehci_hcd...and
> then /etc/init.d/coldplug restart...but no go
> This is not an area I am familiar with, so any suggestions would be
> great
>
> suse 9.2, kernel 2.17.8
>
> (key was plugged in at boot...there is also a usb keyboard and mouse
> plugged in, which come up fine)
The critical difference is that the keyboard and mouse are plugged
directly into your computer, whereas the key is plugged into the TetraHub.
My guess is that the TetraHub doesn't work correctly if a device is
plugged into it at the time the hub is activated. You could try doing
this experiment, after booting:
Unplug the hub. Plug the key into the hub. Plug the hub
back into the computer. Does the key then work?
In any case, I would expect the key to work better if you plugged it
directly into the computer instead of into the hub.
Alan Stern
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