If you like to use the MFP serial ports ("Modem1", "Serial1") under
Linux, say Y. The driver equally supports all kinds of MFP serial
ports and automatically detects whether Serial1 is available.

To compile this driver as a module, choose M here.

Note for Falcon users: You also have an MFP port, it's just not
wired to the outside... But you could use the port under Linux.