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SubjectRe: Trouble with USB serial driver (ftdi_sio.c) on 2.6.31
On Sat, Sep 12, 2009 at 02:08:31PM +0200, e9hack wrote:
> Hi,
>
> I've some trouble with the USB serial driver (ftdi_sio.c for a FT232RL from FTDI). If the
> port is opened for the first time, the driver works perfectly. If the port is closed and
> open again, it isn't possible to read any data from port. Writing data to the port works.
> The FT232RL must be reconnect to get it working again. A reboot without reconnect doesn't
> solve this problem. If I look at the debug output, I don't see read requests from
> ftdi_sio.c. If reading is possible, I see this read messages:

{sigh} Yes, this driver is a bit messed up in .31, sorry. We are
working through it and hope to have a fix in one of the upcoming
.31-stable releases.

thanks,

greg k-h


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