Date: Sat, 5 Apr 2003 10:38:10 +0200 From: Bernd Walter <ticso@cicely9.cicely.de> To: Lee Damon <nomad@castle.org> Cc: current@freebsd.org Subject: Re: IBM T30 USB issue: kernel: uhub2: device problem, disabling port 1 Message-ID: <20030405083809.GF55343@cicely9.cicely.de> In-Reply-To: <200304011802.h31I2lR2013383@castle.org> References: <200304011802.h31I2lR2013383@castle.org>
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On Tue, Apr 01, 2003 at 10:02:47AM -0800, Lee Damon wrote: > I've just sup'd a completely clean source tree and compiled a new > kernel and world. My kernconf is the generic one with pcm and apm > turned on. apci is turned off in the hints file (because it breaks > the mouse). I have INVARIANTS, DDB, and WITNESS turned off right now, for > speed. > > When I try to activate a Bluetooth USB device, I get the following error: > Apr 1 09:57:26 tylendel kernel: uhub2: device problem, disabling port 1 > > I am reasonably convinced it isn't a problem with the bluetooth daughter > card (but can be convinced otherwise, of course). This is a problem with the connected device. My expirience about this is that such devices have bad oscillator designs and notebooks tend to have a worse power quality - especialy when running on batteries. I asume that most of this device work if you give them more time to get ready after connecting than required by specs. It seems that we already wait longer than required, but you can try to increase USB_PORT_POWERUP_DELAY in src/sys/dev/usb/usb.h a bit more. -- B.Walter BWCT http://www.bwct.de ticso@bwct.de info@bwct.de
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