Application: setserial What it is: Set and/or report the configuration information associated with a serial port. This information includes what I/O port and which IRQ a particular serial port is using. This version has a completely new approach to configuration, so if you have a setup other than the standard ttyS0 and 1, you will have to get your hands dirty. By default, only COM1-4 are configured by the kernel, using IRQ 3 and 4. If you have other serial ports (such as an AST Fourport card), or if you have mapped the IRQs differently (perhaps COM3 and 4 to other IRQs to allow concurrent access with COM1 and 2) then you must have this package. To know more about: http://setserial.sourceforge.net/ To install in Ubuntu: sudo apt-get install setserial Example: setserial -g /dev/ttyS[0123] setserial with -g option help to find out what physical serial ports your Linux box has. -- Cheers, Dhastha Project staff Indian Institute of Technology, Bombay My experience on Linux: http://dhastha.wordpress.com Member of KanchiLUG : http://www.kanchilug.wordpress.com OAOD : http://dowithlinux.wordpress.com Kanchilug Blog : http://kanchilug.wordpress.com To subscribe/unsubscribe kanchilug mailing list : http://kanchilug.wordpress.com/join-mailing-list/