How can I mount serial port?

[bg3075]

I think I need to mount a serial device, but not sure how. I looked at /etc/fstab, but cannot determine what to put in for the mount type. And, not sure what port it would be exactly... imagine either "ttyS0" or "tty0". Can someone give a newbie some guidance on how to possibly mount this device?

[recondite]

1st serial port = ttyS0 (Linux) = COM1 (Windows)
2nd serial port = ttyS1 = COM2
3rd serial port = ttyS2 = COM3
4th serial port = ttyS3 = COM4

Note that Linux is zero-based while Win is 1-based.

[stevea]

filesystems on block devices are mounted. Serial pors are never mounted. The concept makes no sense.

Explain what you are trying to accomplish.