Date: Wed, 2 Apr 2003 12:42:40 -0800 (PST) From: Maksim Yevmenkin <m_evmenkin@yahoo.com> To: mobile@freebsd.org Cc: current@freebsd.org Subject: Re: IBM T30 USB issue: kernel: uhub2: device problem, disabling Message-ID: <20030402204240.7293.qmail@web40306.mail.yahoo.com>
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Dear Hackers, [ for archive purposes ] all the USB stack debug traces are available at http://www.geocities.com/m_evmenkin/usb/ i also managed to get USB dumps from W2K that runs on the same laptop. http://www.geocities.com/m_evmenkin/usb/USB_HUB.LOG trace when W2K attach the second hub inside the docking station http://www.geocities.com/m_evmenkin/usb/BT3C_USB.LOG trace when W2K attaches the device i plug into hub i tried the following with out any success 1) use polling for uhci(4) (just to make sure we are not missing interrupt or something like that). i did not make any difference even when i set polling interval to very small value. 2) increase the number of retries, i.e. i tried to call usbd_new_device in a loop from uhub_explore. 3) increase various time constants (power up time etc.) 4) i even went crazy and re-wrote the uhub_explore() function to do very similar (to Linux) things, i.e. all these port debounce stuff etc. it did not work :( one thing i noticed is that device will either work right away or will not work at all. it does not matter how many tries you have. at this point i do not know what to do. i have sent e-mail to Lennart but did not receive any reply yet. if any USB expert care to comment i'm all ears :) thanks, max > On Tue, Apr 01, 2003 at 10:02:47AM -0800, Lee Damon wrote: > > >> 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). > > > > Additional hints on this can be found in the freebsd-mobile archive, > look for posts were the topic contains 'Bluetooth on IBM T30' which are > about a week old. > > This is a problem that exists for some time, and I am also willing to > help fix it. It is not specific for IBM T30, but happens on a varety of > laptops, and probably as well on desktops that have an usb hub connected. > > Also, I get the same error on my T30 when I resume it from suspend mode > with 4.8 Prerelease, then the usb mouse dies. This did NOT happen with > a 4.7 stable built some time around december 2002. But then I have no > idea if this is related to the above problem. > > kind regards, t. __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - File online, calculators, forms, and more http://tax.yahoo.com
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