How to enable TXDEN on FT4232H?

[Wiggan]

Hi,

I have a custom board with empty EEPROM.
I've managed to use the EEPROM api to set vid, pid, type, manufacturer and product. Also a custom serial number.
I have failed in setting chip, so that is 0xff at the moment, and I also cannot set channel_c_rs485.

When I run ftconf.py -c cbus_func_0:? i get "Error: This property is not supported on this device"

There seems to be some lack of support for FT4232H in the "set_cbus_func".

I would be very grateful for some help here.

Thanks for making this awesome library!