How to use serial ports on Ubuntu

1. Embedded (motherboard) port names look like:

/dev/ttyS0
/dev/ttyS1

2. Moxa CP-114 (it's been verified, but other board like CP-132 haven't been yet) port names look like:

/dev/ttyMI0
/dev/ttyMI1
/dev/ttyMI2
/dev/ttyMI3

3. To communicate with devices via the followed programs are used:

sudo apt-get install cutecom
sudo apt-get install setserial

4. Using serail port with VirtualBox:

1. VirtualBox Manager / VM properties / COM ports
2. Check one or both COM-ports
3. point each port to appropriate host device, for instance - /dev/ttyMI0

5. Using serial ports with Wine: Adding standard port:

ln -s /dev/ttyS0 ~/.wine/dosdevices/com1

Adding Moxa serial board port:

ln -s /dev/ttyMI0 ~/.wine/dosdevices/com2

6. You can use it to know what file in /dev is responcible for your serial port.

dmesg | grep serial
[    0.624634] serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
[    5.117510] parport_serial 0000:04:01.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16

For more concrete information you can use following

dmesg |В grep tty