How to check the status of the COM port in Linux?

To check the status of the COM port on Linux, you can use the following command:

1. Use the dmesg command to view information about the COM port during system boot.
2. “Show me all messages related to TTY devices.”
3. Use the “ls” command to view the serial devices files under the “/dev” directory.
4. List all devices starting with ttyS in the /dev directory.
5. Use the setserial command to view the configuration information of the COM port.
6. Display all the available serial ports starting with /dev/ttyS using the setserial command.
7. Check the attribute information of the COM port using the udevadm command.
8. Get detailed information about the device connected to /dev/ttyS0 using udevadm.

These commands can assist you in viewing the status and configuration information of the COM port.