On Friday 02 July 2010 10:15:25 ext suyash.ku...@tieto.com, you wrote:
> Hi,
> 
> I am writing a simple Qt on Maemo application for serial communication
> between device and PC for which I am using QextSerialPort 1.2 library to
> write on the /dev/ttyS0 port so that it could be read by the COM1 port on
> my windows machine connected to the device via USB cable.

You do realize that /dev/ttyS0 is the device for a physical serial port on 
Linux. Unless you have your Maemo device on a development jig, your device 
does not have a serial port. So no wonder that it is not working.

-- 
Rémi Denis-Courmont
Nokia Devices R&D, Maemo Software, Helsinki
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