i do, always worked for me

sudo apt-get update

sudo apt-get install libusb-1.0-0-dev libusb-1.0-0 libcurl4-openssl-dev libncurses5-dev libudev-dev

wget http://ck.kolivas.org/apps/cgminer/4.9/cgminer-4.9.0.tar.bz2

tar xvf cgminer-4.9.0.tar.bz2

cd cgminer-4.9.0

./configure --enable-icarus

make

cd cgminer-4.9.0

./cgminer -o pool:port -u userid -p password --au3-freq 250 --au3-volt 800

--au3-freq 250 --au3-volt 800

try options

You're using the cgminer from bitmain instead of the official cgminer which this forum thread is about. Try cgminer 4.9.0 (best for U3) from the official sources (links in top post).