Date: Wed, 6 Nov 2002 22:43:50 +0100 From: Bernd Walter <ticso@cicely8.cicely.de> To: Josef Karthauser <joe@FreeBSD.org>, Maksim Yevmenkin <myevmenk@exodus.net>, ticso@cicely.de, current@FreeBSD.org Subject: Re: USB problem (Who owns USB code in -current?) Message-ID: <20021106214349.GA47529@cicely8.cicely.de> In-Reply-To: <20021106213316.GA13438@genius.tao.org.uk> References: <3DC6BD74.25097511@exodus.net> <20021106195542.GG46686@cicely8.cicely.de> <3DC982FB.35F1A33A@exodus.net> <20021106213316.GA13438@genius.tao.org.uk>
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On Wed, Nov 06, 2002 at 09:33:16PM +0000, Josef Karthauser wrote: > On Wed, Nov 06, 2002 at 01:00:43PM -0800, Maksim Yevmenkin wrote: > > Bernd, > > > > Who owns USB code in -current? I need an USB expert advice > > > > on the FreeBSD specific USB problem. Basically whenever i > > > > put my laptop into docking station and try to plug Bluetooth > > > > USB dongle i get > > > > > > > > uhub1: device problem, disabling port 1 > > > > > > Is you usb hub really self powered as it claims to be? > > > If it is not the problem you are seeing is not surprising. > > > > the hub (the TI one) is the inside docking station. i've > > no idea if its self powered or not. how can i check it? > > > > If it's inside the docking station I would assume that it's powered. Agreed - I had overread this detail. > On my machine with an external hub I do get messages about power budget > being exceeded so it's probably not that. That's a design issue. Some ports implement overcurrent protection by self healing fuses. Others do not even that. I've seen many awfull cheap implementations. Btw.: I had seen similar problems with a self build device on some ports. It turned out to be a problem with the device oscillator to not properly work under some conditions. -- B.Walter COSMO-Project http://www.cosmo-project.de ticso@cicely.de Usergroup info@cosmo-project.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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