On Wed, 22 Aug 2012, Lan Tianyu wrote:

> >> At first time, the usb port devices have not been created and not bound
> >> with acpi. So at that time, port's DeviceRemovable is not set according
> >> acpi information. After ports' devices are created, binding procedure is
> >> completed. Request hub descriptor again and DeviceRemovable will be
> >> updated by acpi information.
> >
> > Why not just update the ACPI information using the current hub
> > descriptor?  You don't need to fetch the hub descriptor again.
> >
> You mean to set DeviceRemovable directly rather than via hub descriptor 
> request
> here, right?

Right.  DeviceRemovable should be set in only one place, and this
should be that place.

Alan Stern

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