I have a requirement where i have to read data streams coming on serial

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Asked: June 6, 20262026-06-06T14:35:51+00:00 2026-06-06T14:35:51+00:00

I have a requirement where i have to read data streams coming on serial

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I have a requirement where i have to read data streams coming on serial port. I am using javax.comm API for same.

When I try to list ports, using below code I never get any port list.

portList = CommPortIdentifier.getPortIdentifiers();
System.out.println("start: "+portList.hasMoreElements());

It returns false.

Can anyone help me if I am missing anything?

My PS2 port didn’t came in list. Is there any other way to list PS2 port??

My full code is as below,

    while (portList.hasMoreElements()) {
       portId = (CommPortIdentifier) portList.nextElement();
       System.out.println("portid: "+portId.getName());
    }

output

portid: COM1
portid: COM3
portid: LPT1

My actual requirement is to read data on USB port. I was facing issues using JUSB and it didn’t work. So I decided to get serial to USb converter and read on serial port. But, there is no such convertable available in market.

Now, thinking of another work around I was able to get a PS2 to usb converter. It would be great if you could help me listing PS2 port using Java and read/write to it or suggest some API for same on windows platform.

Any help in this regard is highly appreciated.