[coreboot] USB HUB depth

Joshua Pincus joshua.pincus at gmail.com
Thu Mar 9 20:16:15 CET 2017

Hi Patrick and Nico,

Everything works now as expected.  I wasn't calling usb_poll() properly.

Thanks, again, for the quick responses to my exceedingly naive queries.


On Thu, Mar 9, 2017 at 10:40 AM, Joshua Pincus <joshua.pincus at gmail.com>

> Hi,
> Cool.  I'm looking at that code now.  Thanks for your help.
> JP
> On Thu, Mar 9, 2017 at 10:29 AM, Patrick Georgi <pgeorgi at google.com>
> wrote:
>> 2017-03-09 18:53 GMT+01:00 Joshua Pincus <joshua.pincus at gmail.com>:
>> > Enable_port() merely provides power to those ports.  It doesn't scan
>> them and then attach them in any way.
>> That happens on the next usb_poll(), which calls ->poll() for every
>> device.
>> In case of hubs, that's generic_hub_poll(), which covers everything else.
>> Patrick
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