Date: Thu, 12 Jun 2003 02:23:46 +0200 From: Bernd Walter <ticso@cicely12.cicely.de> To: Craig Boston <craig@xfoil.gank.org> Cc: current@freebsd.org Subject: Re: CardBus USB 2.0 Controller (NEC uPD) Message-ID: <20030612002345.GU26807@cicely12.cicely.de> In-Reply-To: <1055372921.24204.50.camel@owen1492.uf.corelab.com> References: <1055260269.91337.127.camel@owen1492.uf.corelab.com> <20030611193734.GO26807@cicely12.cicely.de> <1055372921.24204.50.camel@owen1492.uf.corelab.com>
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On Wed, Jun 11, 2003 at 11:08:42PM +0000, Craig Boston wrote: > On Wed, 2003-06-11 at 19:37, Bernd Walter wrote: > > There are known problems with USB2.0 cardbus cards. > > We have some kind of resource problem - Warner already wrote something > > about it some time ago. > > Ah, thanks. Any hints on where to find it? I tried adding his name to > my archive/google searches but keep coming up with many unrelated > posts... :-/ Search in current and cvs-all lists for ehci and maybe cardbus. There was a thread shortly after the ehci driver was commited. > About all I've managed to do so far is to verify that it doesn't appear > to be an interrupt routing problem. The driver is indeed receiving > interrupts. However the status register only says that it's a root hub > status change, never to advise that a transfer is complete :-( Polling > mode doesn't seem to help as it queries the same register... > > It also sometimes interrupts with intrs==0 right after a transfer > starts, which sounds bogus to me. I'm in single-user mode and positive > that nothing else on irq 11 is interrupting. > > Oh well, for now I'm content to just keep hacking on it and learn more > about how the code works :) Good luck :) -- B.Walter BWCT http://www.bwct.de ticso@bwct.de info@bwct.de
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