Date: Mon, 14 Jul 2003 22:14:09 +0200 From: Bernd Walter <ticso@cicely12.cicely.de> To: Josef Karthauser <joe@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/dev/usb uhub.c Message-ID: <20030714201409.GO72706@cicely12.cicely.de> In-Reply-To: <200307141746.h6EHkRjh079950@repoman.freebsd.org> References: <200307141746.h6EHkRjh079950@repoman.freebsd.org>
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On Mon, Jul 14, 2003 at 10:46:27AM -0700, Josef Karthauser wrote: > joe 2003/07/14 10:46:27 PDT > > FreeBSD src repository > > Modified files: > sys/dev/usb uhub.c > Log: > As defined by USB Specification Rev 2.0 (in section 11.24.2.5), to > get a Hub descriptor, we have to set req.wValue to "Descriptor Type > and Descriptor Index". In this case, Descriptor Type is 0x29 > (UDESC_HUB), Descriptor Index should be 0. > > If I don't do a check (dev->address > 1 ... ), root hub fails. > > A new Cytronix 4-port USB 2.0 Hub (Cypress CY7C65640 chip) now works > after this patch. Interesting - I'm running a CY7C65640 based hub since a while without problems. Which revision was it - mine is the following: port 1 addr 6: full speed, self powered, config 1, product 0x6560(0x6560), Cypress Semiconductor(0x04b4), rev 0.07 -- B.Walter BWCT http://www.bwct.de ticso@bwct.de info@bwct.de
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