BUG-Fix: Do not do ioctls on fd == 0
[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).
8
9 Build the library by calling `make'.
10
11 To use this library you have to preload the library before starting impact:
12
13 $ LD_PRELOAD=/path/to/libusb-driver.so impact
14 or
15 $ export LD_PRELOAD=/path/to/libusb-driver.so (for sh shells)
16 $ setenv LD_PRELOAD /path/to/libusb-driver.so (for csh shells)
17 $ impact
18
19 To use the device as ordinary user, put the following line in a new
20 file in /etc/udev/rules.d/ and restart udev:
21 ACTION=="add", BUS=="usb", SYSFS{idVendor}=="03fd", MODE="666"
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