[PATCH] staging: dwc2: don't issue traffic to LS devices in FS mode

Stephen Warren swarren at wwwdotorg.org
Sat Dec 7 05:10:40 UTC 2013


On 12/06/2013 03:01 PM, Paul Zimmerman wrote:
> From: Nick Hudson <skrll at netbsd.org>
> 
> I fell over the problem reported in
> https://github.com/raspberrypi/linux/pull/390:
> 
> "Issuing low-speed packets when the root port is in full-speed mode
>  causes the root port to stop responding. Explicitly fail when
>  enqueuing URBs to a LS endpoint on a FS bus."
> 
> with my dwc2 testing in NetBSD, so I adapted the change to dwc2.

Tested-by: Stephen Warren <swarren at wwwdotorg.org>

The built-in USB Ethernet on my model B still works fine with this
change. A USB keyboard/mouse combo isn't reliable (it keeps dropping
out, and I need to unplug/replug to get it working again), but it never
was before. I'm also not sure if that's because of power issues or not
(I'm not using powered hub on this system).


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