Hello Cameron: I tried disconnecting and connecting again with no effect... the only solution was reboot the raspberry. Now i am using a rasp zero w and i have only one usb port. I am using last stable raspbian kernel: Linux meteo 4.14.70+ #1144 Tue Sep 18 17:20:50 BST 2018 armv6l GNU/Linux
If it stops receiving again i will try with 4.4... kernel. Thank's El martes, 9 de octubre de 2018, 14:33:06 (UTC+2), Cameron D escribió: > > OK, this is not the symptom that this thread applies to - it might be more > relevant to the hanging thread - I'll explain why at the end. > > The logs are demonstrating total loss of data - this is similar to the > previous problem, where the data stops, and my driver update detects this > and resends the initialisation command. > Where this is different is the restart command seems to have no effect. > The wmr300 console resolutely stops sending data. > Even restarting weewx is not enough to make it wake up. > > There are 3 possibilities I can think of. > > 1. hardware fault in USB > 2. kernel driver fault in USB code > 3. WMR300 USB code is very touchy and liable to deadlock - which I > discovered when trying to modify the code. It gets upset if both sides try > to read or write at the same time. > > for point 3, I have tried to put lots of workarounds to try to ensure it > does not happen, but there might be hardware timing differences between > systems causing problems on one setup and not another. > for point 2, this gets back to the kernel version differences. Maybe this > is how my experimental driver responds to the same problem that locks up > under libusb0. Which kernel is this happening on? > for point 1 - not a lot I can do there, wait to see if other people > replicate it. > > The next steps would be: > > - try the other kernel > - try another USB port, if available > - when it happens next time, see what happens if you simply unplug the > USB for a few seconds. This will reset the WMR300 console comms, it should > also reset the kernel.driver code. > > Cameron. > > > On Tuesday, 9 October 2018 05:58:39 UTC+10, Ruben Navarro Huedo wrote: >> >> raspberry did not hung... only stopped receibing data from wmr300. >> >> >> -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
