I compile cgminer for raspberry pi

try both

https://github.com/ckolivas/cgminer
https://github.com/blockerupter/cgminer

can only get 1T speed

use their controller can get 1.4-1.5T speed

compile is quite easy

i just git clone https://github.com/ckolivas/cgminer.git

and cd cgminer

./autogen.sh
./configure --enable-blockerupter
sudo make

i try ckolivas's 4.7.1 , 4.7.0, and blockerupter's (which is 4.6.1), no luck, only 1T speed