USB keyboard with XHCI on x86?

Bin Meng at
Fri May 8 05:02:15 CEST 2020

Hi Simon,

On Fri, May 8, 2020 at 10:38 AM Simon Glass <sjg at> 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 don't have a board to test xHCI right now, but from the commit
message I wrote the interrupt mode should be working.

commit 1897d60130976ece389d5875187b78ba0d41428f
Author: Bin Meng < at>
Date:   Mon Sep 18 06:40:41 2017 -0700

    usb: xhci: Add interrupt transfer support

    xHCI uses normal TRBs for both bulk and interrupt. This adds the
    missing interrupt transfer support to xHCI so that devices like
    USB keyboard that uses interrupt transfer can work.

    Signed-off-by: Bin Meng < at>


More information about the U-Boot mailing list