USB keyboard with XHCI on x86?

Marek Vasut marex at
Fri May 8 04:56:47 CEST 2020

On 5/8/20 4:41 AM, Simon Glass wrote:
> Hi Marek,
> On Thu, 7 May 2020 at 20:39, Marek Vasut <marex at> wrote:
>> On 5/8/20 4:38 AM, Simon Glass wrote:
>>> Hi Bin,
>>> Does this work for you? It doesn't work for me in interrupt mode, only
>>> in control-endpoint mode. Is that expected?
>>> Also I notice that some broken devices don't work or cause a crash.
>> I recall some keyboards didn't work in interrupt mode, which is why I
>> added the control endpoint polling. Does it work on EHCI for you ?
> I'm not sure how to try it with an XHCI controller.

Do you have an EHCI controller on that system too ?

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