If you are using a professional USB-based protocol analyzer to monitor I2C traffic between chips, you need the drivers provided by Total Phase .
Depending on your hardware, use the following guide to find and install the correct drivers. 1. Total Phase Beagle I2C/SPI Protocol Analyzer beagle i2c driver download
You can download the latest Windows and Linux USB drivers directly from the Total Phase Downloads page . If you are using a professional USB-based protocol
The official BeagleBoard Debian images come with I2C drivers pre-installed. beagle i2c driver download