I have discovered that the FTDI-drivers will be incorrectly installed if you have a case-sensitive file system (like HFS+ with case-sensitive turned on). This applies to at least 2.2.6 and 2.2.7.
Note: This fix ONLY for systems with a case-sensitive filesystem (if you don't know wheter this fix applies to your system, it most likely doesn't).
- The fix is to move the entire kext folder "FTDIUSBSerialDriver.kext/" from "/system/library/extensions" to "/System/Library/Extension" (note the difference in case).
- Reboot
- Things just workTM
Cheers!
/h