Hi, I'm planning to implement a bus driver for a simple homebrew serial port I2C-adapter: http://vodka.tky.hut.fi/~jap/Electronics/I2C/SerialAdapter/index.html The original design is mine, but I just got confirmation from a hacker in Italy that the device actually does work. Unfortunately the guy wrote the driver for Windows only. Thus I decided to implement one for linux. I checked the list of supported bus drivers and didn't found anything related to serial port. Do you feel that kind of project usefull? BR Jaakko Ala-Paavola