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.
