On 06/16/14 17:10, Matthias Apitz wrote:
El día Monday, June 16, 2014 a las 12:10:41PM +0200, Hans Petter Selasky 

What happens if you revert that patch, and do a read first, instead of a

I have revert both patches, i.e. the code is now as it was, but has some
DPRINTF statements at the beginning of the fuctions; here is what
happens on plug-in, read and write to the device:

plug-in USB cable:

Can you try to connect an external High-Speed HUB in between?

Instead of ulpt.debug, set hw.usb.uhub.debug=15 and collect logs, when executing your "echo XXX > /dev/ulpt".


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