>
> uname -a
> Linux omnfrmo10 4.12.14-lp151.28.10-vanilla #1 SMP Sat Jul 13 17:59:31 UTC
> 2019 (0ab03b7) x86_64 x86_64 x86_64 GNU/Linux
>
4.12.14 - it should have the heartbeat patch introduced in 4.3
> i see a lot, see attached file
The dyndbg for the driver is active :-)
The log you sent
>
> Different computer but same cables i guess the device is ok.
>
But maybe the USB port of the computer is broken.
> NTL I found that little gem:
> https://www.fclose.com/linux-kernels/594677/usb-io_ti-add-heartbeat-to-
> keep-idle-ep-416-ports-from-disconnecting-linux-4-3/
>
> The behavior
> > (doing a "cat /sys/kernel/debug/dynamic_debug/control | grep usb" helps
> much)
> >
> I see a bunch of messages. what do you expect me to do ? I have 412 lines,
> should
> i send them ?
>
From the log of your kernel messages, it seems that uhci_hcd takes over the
transport.
So you should do
Hi Walter,
i had a similar issue with a different device.
Please check, if you have dynamic debug enabled in your kernel
(/sys/kernel/debug/dynamic_debug/control exists)
Then you can enable additional kernel messages using
echo -n 'module xhci_hcd =p' > /sys/kernel/debug/dynamic_debug/control
ech
