Linux User Space i2c

http://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=10&ved=0CGkQFjAJ&url=http%3A%2F%2Fwww.haifux.org%2Flectures%2F258%2Fgpio_spi_i2c_userspace.pdf&ei=hu8EUKyaE8TNqgHrw-CxCA&usg=AFQjCNG-QNxl7brpTBTnzO2_JckFhdlC2Q modprobe i2c-dev