I've recently moved to the latest davinci-next (v3.3) staging tree to support the TIWI-R2 Wi-Fi module from kernel version 2.6.32-rc6. After the upgrade I am now experiencing errors when decoding serial messages over USB using the FTDI device driver. Data is received, but it appear is a have a high bit error rate, since dropped messages are reported. Both kernel versions are using ftdio_sio driver version 1.6 and the client hardware is working as expected. Is this a known issue? I also experienced a similar issue when I upgraded to the latest Ubuntu kernel (v3.3). The baud rate was not set correctly in software and the measured baud rate was around 1.5MHz.This was fixed by manually setting the speed using stty or by reverting to an earlier kernel version (3.0 I believe).
The chip that is used by the hardware is FT232R.
Any help would be appreciated.
Thanks