On Thu, 6 Jan 2005, Chris Gray wrote: > The converters typically use high IRQs and strange port addresses. In Windows, perhaps, but in Linux, they are treated as totally different devices. They start at /dev/ttyUSB0, and go up from their. In Windows, the converter gets assigned a com port. In the case of the Keyspan, it didn't get an IRQ, at least not that I could find. In any case, it's just one of many options.