New official version of cgminer, 3.5.0, now contains support for red/bluefury devices on linux and windows.
.deb for raspbian :
https://mega.co.nz/#!HdZWXaJL!f8Tq2Td275SK1Dkv0KiBYAQQuFN00vfsuL3v7_cIrsE
Instructions:
sudo apt-get update #Make sure repos are up to date
sudo dpkg -i cgminer_3.5.0-1_armhf.deb #May complain about missing dependencies, dont panic next step takes care of it
sudo apt-get -f install #Installs the needed dependencies and then failed cgminer form above step.
built using :-
--disable-opencl --disable-adl --enable-bflsc --enable-bitforce --enable-icarus --enable-modminer --enable-ztex --enable-avalon --enable-bitfury