[SeaBIOS] [PATCH 2/4] usb: don't free usbdev

[Kevin O'Connor]

On Wed, Aug 21, 2013 at 03:20:21PM +0200, Gerd Hoffmann wrote:
> xhci needs them even after completing device initialization.  xhci must
> to walk up the chain to the root port and the usbdevs (of usb hubs) are
> part of it.

The hub's usbdev isn't freed until all of its ports have been
configured.  The only place I see the hub chain walked is in an xhci
set-address command - but that command would only be run during the
configuration when all the hub ports are still available.  So, I don't
understand why this change is necessary.

Also, would it be simpler to cache the route and hub speed during the
pipe allocation instead of calculating it during the set-address
command?  This is what the ehci code does.

-Kevin