We have tried using the following program to communicate with an I2C compas using the cRIO 9014 and the digital I/O NI9403.
http://decibel.ni.com/content/docs/DOC-1151
We get an error when we try to run the host VI(see the error on the following link)
Error
The project we try to run its packet here: http://uldgade.dk/I2C.rar
Or if anyone have another working solution for communication with I2C. The device we try to communicate with is a compas from Honeywell HMC6352