built on initial work in https://github.com/peterbmarks/fl2k and https://osmocom.org/projects/osmo-fl2k/wiki
sudo apt-get install libusb-1.0-0-dev
On Ubuntu: $ sudo sh -c 'echo 0 > /sys/module/usbcore/parameters/usbfs_memory_mb'
$ sudo cp osmo-fl2k.rules /etc/udev/rules.d/ $ sudo udevadm control -R $ sudo udevadm trigger
$ make