really strange FTDI is enabled by default in many distribution.
BTW recompile the kernel is not that hard, and if you have a good pc it takes less than drink an hot tea.
Thre is a voice in the kernel menu that explicit say FTDI driver, under the USB section if i remember right.
take a look at some basic guide for recompiling kernel in your distribution and everything will be clear (just remember to backup! always!)