On Tue, Oct 12, 2010 at 1:37 AM, B <[email protected]> wrote:
> This issue seems to be a kernel bug introduced in the FTDI driver
> reverting to 2.6.32-24 resolves the issue. (Issue is in 2.6.32-25).
>
> This explains why it was working than suddenly didn't, I failed to
> notice Ubuntu had changed the default kernel.
Hmm, this may be quite similar to the problem reported in
lpc21isp group.
Regards,
Xiaofan
---------- Forwarded message ----------
From: Reinhard
Date: Thu, Sep 30, 2010 at 5:19 AM
Subject: [lpc21isp] lpc21isp no longer works with ubuntu lucid
2.6.32-25 kernel and ftdi_sio
To: lpc21isp
Hallo,
a patch in the ftdi_sio driver break lpc21isp.
(kernels up to 2.6.32-24 work fine).
Removing these four lines:
----->
/* raise DTR/RTS */
set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
<-----
----->
/* lower DTR/RTS */
clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
<-----
fix the problem
Is there a workaround known?
Reinhard
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