Hi all,
For Linux support, you need to add a udev rule for read/write permission for the USB device.
# Store the file here:
# /etc/udev/rules.d/60-webfpga.rules
#
# Run this command to reload the udev rules without rebooting:
# udevadm control --reload-rules && udevadm trigger
SUBSYSTEM=="usb", ATTR{idVendor}=="16d0", ATTR{idProduct}=="0e6c", TAG+="uaccess"