This is an old thread, but adding the following information for people who may be looking for how to utilize the USB bridge feature available in some of our debug probes.
We have just released an updated/replacement version of the LPCUSBSIO library. This is now available and fully supported, with its own landing page on nxp.com: https://nxp.com/libusbsio.
This library supports LPC-Link2, and will also support upcoming additions to the MCU-Link probe family.
This new library is backwards compatible with LPCUSBSIO, and also has a Python wrapper available at PyPi. There is a user guide at the page above which includes examples.