Uwe Bonnes писал 25.09.2012 12:46:
"Andrew" == Andrew <andrew@xxxxxxxxxx> writes:
Andrew> This is seen on widely used ftdi ft232rl chips. Setting
the
Andrew> parity to something like 'even' results in occasional
framing
Andrew> errors when transmitting data.
Andrew> Relevant timing diagrams from the logic analyzer are
attached to
Andrew> this bug:
https://bugzilla.kernel.org/show_bug.cgi?id=47921
Is this a driver or a hardware thing?
I think that this is a driver problem, since windows drivers do not
produce any framing errors.
I stumbled upon this while reversing the STC microcontroller ISP
protocol that happen to use 'even' parity.
I can send in more timing diagrams both from windows and linux hosts to
compare.
--
Regards,
Andrew
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