On Wed, Sep 15, 2010 at 11:00:54PM +0200, Ferry Toth wrote: > Hello, > > I have an application that sends data out to a serial port, then should > receive the reply. [..snip..] > > The PC runs ubuntu lucid. > The serial port is a usb dongle > udev correctly detects the dongle and creates 2 serial ports ttyUSB0 and > ttyUSB1 (yes this is correct behavior for the device). Which device & which driver? Actually, since the /dev/ttyUSB* are created, only the driver is perhaps of interest. Probably in /var/log/messages. ael