Libusb Device Filter

If you encounter problems with using a USB device with libusb on Windows, you may need to install a libusb device filter. This guide assumes that you already have libusb-win32 installed on Windows, and that you have the libusb-win32 binary version 1.2.2.0 in a folder called libusb-win32-bin-1.2.2.0. If not, see Compiling Openocd for information on installing libusb.

Installing a Device Filter
Plug in your USB device, and ensure that the libusb drivers are already installed. In Windows Explorer, navigate to \libusb-win32-bin-1.2.2.0\bin, and open the folder \x86, \amd64, or \ia64, depending on your processor. Find and run install-filter-win.exe. (If you are unsure whether you have a 32- or 64-bit processor and choose the wrong installer, it will display an error message and terminate.)

In the installer, select your device and click "Install."