I now run my miner from the rpi. It works so far but i want to know how and where i can change the const for the maximum voltage. I used ./autogen.sh --enable-avalon to compile but i dont know what file to edit for the const.

Then, regarding my previous question, i run the rpi through a smartphone loading cable but would like to run it from the atx psu. I found complicate tutorials for creating a usb-connector with power but i dont like it. So is it possible to simply power the rpi through pin 2 and 6 or 4 and 6 connected to a 5v cable from the psu?

I would like to have that the rpi, when it starts, automatically starts cgminer and that a crashed or broken cgminer is restarted, or the whole rpi. How to achieve this? It would be best to not having to see what the rpi does, only connect power and it mines and controls itself.