Ive been trying to do this myselfI have carman setup on my N770 and When I plug the USB ELM327 into the N770 its detects it and gives address5 (shown in dmesg).

What I need now is to emulate a bluetooth device with the USB device, Or modify carman to look at all com ports.

Last Option im willing to try is buy a Serial-to-Bluetooth and Serial-To-USB cable, and by using the appropriate gender changers connect the elm device to the usb and serial to serial so now it would be a usb to bluetooth device.

Any thoughts? Or has anyone got this working ? I need help.