Subject: Re: Ehci/Umass bug ?
To: IWAMOTO Toshihiro <email@example.com>
From: Vincent <firstname.lastname@example.org>
Date: 11/24/2004 09:53:01
> I had the same problem with ehci+umass on a 2.0_RC4 amd64 box, but not
> with ohci on another 1.6something box. I guess this is a ehci bug.
I've tried to bypass the CSW test. In order to do that neatly, I have
defined a new quirk and added a "shunt"-test in 'umass.c'. Same result.
After a short while, one or two seconds, the device hangs, and no amount
of BBB resets or bulk_clears helps.
I am wondering about split transactions or a lost interrupt cycle. Is
there anyway to acertain any of these hypothesis ?