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Date: Sat, 03 Oct 2015 08:38:53 -0600
From: Michael Torrie <torriem@gmail.com>
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Subject: Re: Pyserial and Ubuntu Linux kernel 3.13.0-65-generic
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Xref: csiph.com comp.lang.python:97378

On 10/03/2015 03:19 AM, Laura Creighton wrote:
> With better searching, I find this bug.
> https://bugs.launchpad.net/ubuntu/+source/linux-lts-trusty/+bug/1501345
> 
> Looks like that's the real one.

This ubuntu bug and the other bug you mention seem to be about FTDI
devices. Rob said in his original post that the problem occurs with a
real UART serial port as well, and also the prolific USB chipset.