#raspi-update

[amythical]

Raspi I2C broken after update

If you have updated ur raspi, and the I2C is broken here is what needs to be done

sudo raspi-config

Go to Advanced disable Device tree

(update raspi-config if you do not see this option)

Source - http://raspberrypi.stackexchange.com/questions/27073/firmware-3-18-x-breaks-i2c-spi-audio-lirc-1-wire-e-g-dev-i2c-1-no-such-f