On Tue, 3 Jul 2007, Felipe Balbi wrote:

> Hi Allan,
> 
> let me get this same thread to ask you the following

> How could I force my usb host controller to re-enumerate everything
> attached on the bus through userspace?? would it be some sort of
> control message???

The easiest way is to unbind the hub driver from the root-hub device
and then rebind it.  If B is the bus number, you can do:

        echo -n B-0:1.0 >/sys/bus/usb/drivers/hub/unbind
        echo -n B-0:1.0 >/sys/bus/usb/drivers/hub/bind

Alan Stern


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