thomascannon.net

/*        
        PortList - example of enumerating hardware ports on a system using Java.
        Created to aid debugging Linux where the Arduino IDE (Java) cannot see a USB Serial 
        device for 5 minutes after first plugging in.

        Compiled on Ubuntu 64bit with "javac PortList.java" after installing 64bit RXTX Library:
                sudo cp lib/RXTXcomm.jar /usr/lib/jvm/java-6-sun/jre/lib/ext/
                sudo cp lib/librxtxSerial.so /usr/lib/jvm/java-6-sun/jre/lib/ext/

        Version: 2009.11.16-01
*/

import java.io.*;
import java.util.*;
import gnu.io.*;

class PortList
{  
        static void listPorts()
        {
                Enumeration portEnum = CommPortIdentifier.getPortIdentifiers();
                while ( portEnum.hasMoreElements() ) 
                {
                        CommPortIdentifier portIdentifier = (CommPortIdentifier) portEnum.nextElement();
                        System.out.println( portIdentifier.getName() + " - " + getPortTypeName(portIdentifier.getPortType()) );
                }        
        }

        static String getPortTypeName ( int portType )
        {
                switch ( portType )
                {
                        case CommPortIdentifier.PORT_I2C:
                                return "I2C";
                        case CommPortIdentifier.PORT_PARALLEL:
                                return "Parallel";
                        case CommPortIdentifier.PORT_RAW:
                                return "Raw";
                        case CommPortIdentifier.PORT_RS485:
                                return "RS485";
                        case CommPortIdentifier.PORT_SERIAL:
                                return "Serial";
                        default:
                                return "unknown type";
                }
        }

        public static void main(String args[])
        {
                System.out.println("Getting list of ports");
                listPorts();
                System.out.println("Finished");
        }
}