I was looking online for the possibility of operating I2C devices via USB and found the following - http://uk.farnell.com/jsp/displayProduc ... N-LISTINGS
According to the datasheet it supports Windows, Mac, Android, Linux 3.0+ and communicates by using virtual com port.
This would be ideal for me since one of my main reasons for using USB anyway was to put an FM radio inside my PC to replace the one I have that's not XP compatible.
Does anyone have experience with such devices or could recommend something cheaper that's XP and Raspbian compatible??