Com port moniter in Linux
 

Hi everyone,

I am new in Linux. Just wonder is there anyone kown where can I find some tools to moniter my linux com port. I have a pogram which communicate with a USB CDC device. But I just want to verify the message I send to device is really what I want at port level. Your any ideas are very appreciated!

Billy

If you want to see what the serial port is doing, you can simply do:

cat /dev/ttyS0

That while show any traffic going over the first serial port. ttyS1 would be the second serial port, or COM 2 in DOS/Windows.