Usb-driver
From ift
Making the driver work
Download and extract libusb-driver.
$ cd /path/to/driver/ $ make $ LD_PRELOAD=/path/to/driver/libusb-driver.so
Pull out the usb cable and put it back in.
$ /sbin/lsusb
Make sure the cable has got the ID 03fd:0008, if not - consult README.
Other
Make sure you have ran
$ source /opt/Xilinx/12.3/ISE_DS/settings32.sh