Need help detecting modem

Question

Hello, as part of a program I need to detect modems for various platforms. On unix, this was no problem as I called the following:
Enumeration PortList =
CommPortIdentifier.getPortIdentifiers();
CommPortIdentifier Port = (CommPortIdentifier)
PortList.nextElement();
while(!Port.getName().equals("/dev/modem")){
Port = (CommPortIdentifier)
PortList.nextElement();
Thus, returning the port as a commPortIdentifier. However, I tried to implement this into windows but ran into problems. First, I couldn't find what to search for (the equivalent of /dev/modem) in windows, so I wrote a program to output all the ports, and then I would pick from one. Unforutnatley, that did not recognize any ports. Could someone please help me detect the modem port in any manner they might knwo how. All help is greatly appreciated. Thanks!

Answer 1

Hi,
Use the enviroment variable os.name to get the operating system. Then try something like this
public static void main(String[] args) {
        portList = CommPortIdentifier.getPortIdentifiers();
        while (portList.hasMoreElements()) {
            portId = (CommPortIdentifier) portList.nextElement();
            if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL) {
                // if (portId.getName().equals("COM1")) {
                if (portId.getName().equals("/dev/term/a")) {
                    SimpleRead reader = new SimpleRead();
    }I have just cut and paste the code from the sample provided with the comm API package. You will have to add an if clause to handle both windows and unix.
Hope this helps.