Hello On 9/3/06, jzakiya / mail.com <jzakiya / mail.com> wrote: > I need to access the camera and take full control of its features and > functionality. > Thus, I need to fully control the command interface to the camers, > which requires > sending/receiving commands (6 byte codes) and receiving images. This > requires > controllnig the rs232 interface to the camera. > > So, can anyone provide or direct me to code for controlling an old > rs232 serial port and a new > USB-RS232 serial connection? The driver for your usb-serial adapter should make it appear as a standard serial port to your applications. If you searched the web for ruby and serial ports you should have found some of the earlier discussions on the topic such as this: http://groups.google.com/group/comp.lang.ruby/msg/1f72a79dd9760dc1?hl=en& I would first try to use the real serial port to test the communication. The USB-RS232 adapters tend to be less compatible than the good old hardware for some reason. Thanks Michal