The Cirrus Logic Audio Card (CLAC) is advertized as being HAT compatible:
http://www.newark.com/wolfson-microelec ... oCpcXw_wcB
U10, the board ID EEPROM, is not populated on the board I received; only bare pads are present. Strangely, the EEPROM WP jumper is populated!
Now, the HAT specification: https://github.com/raspberrypi/hats/blo ... quirements states that a working EEPROM is a requirement.
Those facts are inconsistent. Does anyone know what the story is here?