Hi, Sorry I didn't get back to you guys. I have not done any sort of USB hub setup, nor do I see myself doing such. For now the XBee has been working for about a week, so the bug is just waiting to occur again. As for my setup, what I may do for now (although it's an extremely ugly hack) is just reboot the board whenever the USB device disappears, since the device will be hooked to the board for 99% of its life. A more longterm solution to my personal problem will be a standalone custom board or a custom cape for the xbee. As for the bug itself, I cannot help, because I do not know the ins and outs of the x86 IBM PC compatible computer that I would need to fix it.
Regards, Kent Friesen On Sat, Nov 30, 2013 at 6:08 PM, Corey McGuire <[email protected]>wrote: > I'm running 3.12 and the bug still exists... very disappointing. It's so > repeatable it should be easy to narrow in on. I am begging people to let > me help them, give them test cases, bug info, etc. *Crickets* > > > On Fri, Nov 29, 2013 at 6:47 AM, <[email protected]> wrote: > >> Hi, >> does anybody know if there is a progress with this bug? I have installed >> latest available Angstrom distro and running "Linux beaglebone 3.8.13 #1 >> SMP Tue Jun 18 02:11:09 EDT 2013 armv7l GNU/Linux" and I can see random >> problem with USB host. One scenario: after reboot I can see 5V at connector >> and when I insert keybord it's detected (dmesg, lsusb), when I reconnect >> mouse it works too but when I disconnect I can see there is 0V at USB and >> lsusb still displays mouse. 0V is there till reboot. I think it's some race >> condition or so in USB detection code. Scenario may change it's rather >> random. I don't think it's because of USB overcurrent protection. USB >> driver is instructed to power off. Seems it's compiled in module in kernel, >> I can see lsmod related module. Is it possible somehow restart USB support ? >> >> I found it's rather well known problem (many posts) but I've not found >> reliable solution - I think it's software bug not electrical. Any help >> appreciated before I sink in kernel code ;-) >> >> I believe it's pretty common critical problem to be left unsolved. >> >> Thanks >> Tomas >> >> >> Dne sobota, 16. listopadu 2013 6:18:29 UTC+1 APRichelieu napsal(a): >> >>> Den lördagen den 16:e november 2013 kl. 01:46:23 UTC+1 skrev >>> [email protected]: >>> > Hello, >>> > >>> > >>> > First a little bit of a background: >>> > >>> > >>> > I have a beaglebone black connected to the mains with a 5V, 1A DC >>> power supply. >>> > I'm running an Xbee USB adapter board (http://goo.gl/ygIboV), and an >>> XBee 900HP (http://goo.gl/0ZhtM6) on the USB port. >>> > It's running stock Angstrom Linux. >>> > >>> > >>> > The problem is this: >>> > >>> > >>> > About every 24 hours, the lights on my Xbee adapter board turn off and >>> the device is nowhere to be seen on my lsusb output. Usually I can still >>> ssh into the board after this happens. After a reboot, the board is fine >>> for another 24 hours before the same thing happens again. >>> > >>> > >>> > I have a hunch that the problem is the power supply, but is there >>> anything else I could try before I go out and buy a new, more powerful >>> supply? >>> > >>> > >>> > My other question is why would the Xbee work at all if the problem is >>> in fact a power supply that isn't strong enough? >>> > >>> > >>> > Thanks, >>> > >>> > >>> > Kent Friesen >>> >>> There is a bug in the linux USB driver so hotplugging does not work. >>> I the XBee for som reason disconnects itself, it won't be found. >>> Try put a hub in between. >>> >>> If the problem disappears, then you ran into this, and not an adapter >>> problem. >>> >>> Ulf >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > > > -- > Everything should be made as simple as possible, but no simpler - Albert > Einstein <http://en.wikipedia.org/wiki/Albert_Einstein> > Simplicity is the ultimate sophistication - Leonardo Da > Vinci<http://en.wikipedia.org/wiki/Leonardo_Da_Vinci> > Perfection is reached not when there is nothing left to add, but when > there is nothing left to take away - Antoine de Saint > Exupéry<http://en.wikipedia.org/wiki/Antoine_de_Saint_Exup%C3%A9ry> > Keep It Simple Stupid - Kelly > Johnson<http://en.wikipedia.org/wiki/Clarence_Johnson> > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
