Prepare for USB3 connections:

sudo apt-get install python-pip
apt-get install git
pip install git+https://github.com/walac/pyusb.git@master#egg=pyusb
pip install pySiLibUSB

See some notes in barcelona group and also here

rpm -iUvh http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm
yum -y update
yum -y install python-pip
pip install --upgrade pip
yum install libgusb libusbx libusb-devel 
yum install libudev-devel
yum install libgudev1 libgudev1-devel python-pyudev
sudo pip install pyusb
tar -jvxf libusb-1.0.20.tar.bz2; cd libusb; ./configure; make; make install;
pip install pySiLibUSB
# get Anaconda2-2.4.1-Linux-x86_64.sh
./Anaconda2-2.4.1-Linux-x86_64.sh  # say yes to all
# get  ViTables-develop_py27.zip
unzip ViTables-develop_py27.zip
cd ViTables-develop/
python setup.py install
# get from github
unzip pyusb-master.zip # from github
cd pyusb-master/
python setup.py install
# get master pyBar
cd pyBAR-master
python setup.py install