$ export LD_PRELOAD=/path/to/libusb-driver.so (for sh shells)
$ setenv LD_PRELOAD /path/to/libusb-driver.so (for csh shells)
$ impact
+
+To use the device as ordinary user, put the following line in a new
+file in /etc/udev/rules.d/ and restart udev:
+ACTION=="add", BUS=="usb", SYSFS{idVendor}=="03fd", MODE="666"