On Thu, 7 Oct 2010, Florian Bauhaus wrote: > Hello, > I am running into the same problem over here. > > We got an embedded board with a AMD Geode LX800 and CS5536 companion > chip and a Sierre Wireless MC8790 miniPCI Express modem (which uses USB > only). > > The problem was discovered just recently since it will work fine for > some time but due to constant dis- and reconnects we eventually > triggered the problem. > > The kernel we run is basically 2.6.28.10 (included in OpenWRT 15916) > with an upgrade sierra.c from v.1.3.2 to v.1.7.8 (as suggest to us by > Sierra Wireless). > > When I remove the ehci_hcd and run on just ohci_hcd everything works > just fine (except that I lose USB 2.0). > > If I can supply you with any more information on how to solve that > problem I will be glad to help. At the moment, the only information I can think of that would help is the details of this hardware bug in the CS5536 chip and a plan for a workaround. Maybe AMD can provide this. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
