add short readme
[usb-driver] / README
1 This library emulates Jungo Windrvr USB functions in userspace which are
2 required by XILINX impact to access the Platform cable USB. With this library
3 it is possible to access the cable without loading a proprietary kernel module
4 which breaks with every new kernel release. It uses the USB functions provided
5 by the libusb userspace library instead and should work on every kernel version
6 which is supported by libusb. It was written against impact from ISE Webpack
7 9.1SP1 and will very probably not work with older impact versions (<9.1).
9 Build the library by calling `make'.
11 To use this library you have to preload the library before starting impact:
13 $ LD_PRELOAD=/path/to/ impact
14 or
15 $ export LD_PRELOAD=/path/to/ (for sh shells)
16 $ setenv LD_PRELOAD /path/to/ (for csh shells)
17 $ impact
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