Good morning all,
I wrote a communication program who exchange files between computers through null-modem cable, named "Serial Door", who has been released for various platforms and I want to release it for MorphOS also. Program acts by taking in input the name of the serial port who must be used (e.g. "serial.device" for OS4, "COM1" for Windows). Every port name I used during my tests doesn't work. These are the port names who I entered, without any success (the first three with ".device" suffix and without):

- serialcp210x
- serialpl2303
- serialch34x
- serial.device

I dont't know if I simply mistaken the port name, or I missed some configuration who is needed before.
Testing has been made under MorphOS 3.20 not registered under QEMU.

Any suggestion?

Since you're running emulated, does that include any supported serial HW?

There is no onboard serial for anything Mac, so no "serial.device" and unless QEMU passes through USB devices the other also won't work.