On Thu, Apr 22, 2021 at 07:32:15AM +0000, Jorge Fernandez Monteagudo wrote: > I've been able to stop the disconnecting loop. > > First I tried the usbcore.autosuspend=-1 guessing that an inactive period of > time will send the device to some low power state, explaining the enumerating > and disconnect loop with, but I had no luck. > > Then I force using the device with an udev rule running > > evtest --query $DEVNAME EV_KEY 0 > > and the disconnection disappears. Maybe it's an error in the tobis > touchscreen controller code??
Looks like the device is broken, sorry. Again, the kernel can not cause an electrical disconnection like this. > I would like to test if the behavior changes in full speed instead of high > speed. Is there some way to downgrade the EHCI speed to full speed? Plug in a USB 1 bus? if you can find such an old obsolete thing :) good luck! greg k-h _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
