linux-kernel - Re: Trouble with ft2232

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Date:	Sat, 20 Nov 2010 11:21:24 +0100
From:	Johan Hovold <jhovold@...il.com>
To:	Daniel Otte <daniel.otte@....de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Trouble with ft2232

On Tue, Oct 12, 2010 at 08:45:30PM +0200, Daniel Otte wrote:
> Hi Johan,
> I have some trouble with the driver for the FT2232D.
> It worked flawlessly the last time I checked (around August) but now it seems to
> have troubles.

This could be related to a change that was incorrectly made to the
DTR/RTS handling.  This change has later been reverted (commit
677aeafe19e88c282af74564048243ccabb1c590 upstream).

Could you see if 2.6.37-rc2 works as it should? The revert will also be
part of 2.6.36.1 (and 2.6.35.9) soon to be released.

> The device is correctly identified and /dev/ttyUSB0 and /dev/ttyUSB1 are
> created, but at least /dev/ttyUSB1 does not transmit or receive data.
> I'm running Kernel 2.6.32-25 on Ubuntu 10.04 but I could also verify this
> problem on Kernel 2.6.35-7. The Device (LM3S9B90 dev kit) works correctly under
> Windows 2000. Also flashing via openocd which uses libftdi works.
> I already removed brltty (which seems to cause some trouble as I found out on
> the web).

Thanks,
Johan
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