Enabling ehci_hcd

[Ethan Rosenberg <ethros@earthlink.net>]

Dear list -

I was having problems w/ a USB drive and traced the problem to the drive 
enclosure using USB1.1 and the computer requiring USB2.0.  I disabled 
the ehci_hcd with the following set of commands:

[from 
http://www.geekdevs.com/2010/04/solved-unable-to-enumerate-usb-device-disabling-ehci_hcd/ 
],


cd /sys/bus/pci/drivers/ehci_hcd
ls

You will see a file with 0000:00:xx.x format. Execute the following command:


sudo sh -c 'echo -n "0000:00:xx.x" > unbind'

Replace the xx.x with the numbers displayed on your file. It should 
disable the ehci_hcd.

OK, it worked.  Now I have another enclosure that runs USB2.0.

How do I now re-enable the ehci_hcd?

Thanks.

Ethan