For the upcoming AMBEd daemon needed by XLX reflector software there is a need to connect an FTDI USB-serial adapter without using the default ftdi_sio kernel module. Instead the software makes use of the D2XX drivers by FTDI. This driver is available as binary only from FTDI’s website.
The problem with Linux operating systems is that it loads the ftdi_sio driver by default. One option is to blacklist that module. The drawback is that also all other FT232 based USB-serial adapters will also not work anymore. In my case I had some other devices that had to use the ftdi_sio driver while the AMBE device should not. So blacklisting the whole driver is not an option.