Using libusb 0.1.2.6. TestLibUsb reports dll version 0.1.2.6, driver version -1.-1.-1.-1, and that's the problem. tryUSBDM finds 1 bus with no devices even though device manager says there are 2. HiWave debugger in Legacy Codewarrior has no issues. What (where) is the missing driver? I admit that tryUSBDM is ancient but it interfaces the bus using libusb api's.