[LinuxBIOS] Programming i2c

Hello,
I have a question. I see in the sources there are drivers for i2c  
devices. What I am thinking is to write a driver to program and  
initialize the tv-out chip through the i2c (smbus). The tv-out chip is  
embedded in the board and programable through i2c. If this is possible  
I would need to know at what point the video bios gets initialized.  
And I would want to load this driver right after video bios gets  
initialized correct? Thoughts?

Thanks - Joe