Hello,
You should not use D2XX drivers but VCP (virtual com port drivers). They could be found :
http://www.ftdichip.com/Drivers/VCP.htmThis is for the ENTTEC DMX USB PRO.
Here are the steps to ensure that you FTDI driver is well installed.
1) plug the ENTTEC DMX USB Pro on an USB port (one with enought power to drive this device)
2) verify that the driver loads after plugging it in using Applications|Utilities|Terminal
mac-pro-de-david-geldreich:~ dgeld$ kextstat | grep com.FTDI
114 0 0xcd0e9000 0x7000 0x6000 com.FTDI.driver.FTDIUSBSerialDriver (2.2.14) <99 38 12>
3) verify that the device is seen :
mac-pro-de-david-geldreich:~ dgeld$ system_profiler SPUSBDataType
...
DMX USB PRO:
Product ID: 0x6001
Vendor ID: 0x0403 (Future Technology Devices International Limited)
Version: 6.00
Serial Number: ENQEJNRZ
Speed: Up to 12 Mb/sec
Manufacturer: ENTTEC
Location ID: 0x1d100000
Current Available (mA): 500
Current Required (mA): 300
4) verify that the driver created a /dev entry :
mac-pro-de-david-geldreich:~ dgeld$ ls -al /dev/tty.usbserial*
crw-rw-rw- 1 root wheel 10, 6 21 jan 15:22 /dev/tty.usbserial-ENQEJNRZ
5) open Modul8 | Preferences | DMX
select ENTTEC, the device listed above, receive mode
go to Modu8 | Info | DMX
you should see the serial/firmware version of your decice
Regards