Hello all, I'm trying to use arch to read from two analog pins and command four PWMs of a BBB and it has become clear that I don't have the foggiest idea what I'm doing. The guides I find are typically written for 3.8 instead of 3.12, and they typically involve a command failing and the message "failed to load firmware 'BB-ADC-99A0.dtbo'" being written to the dmesg log.
Does anyone know where I might find that overlay file? Is it the kind of thing that's likely to work cross distro (ie could I borrow a copy from the angstrom source)?
Alternatively, do you know of a place with a large variety of device tree overlays from which I could mix and match and hopefully get to a point where I can read from the analog pins?