CODEWITHSUNDEEP
javahardware
developer
developer

Reputation: 9478

how to know what are the input devices connected to the system

iam just simply trying to know what are the input devices and output devices connected to the system. Do there any api to get information about input/output devices using java?

EDIT

independent of any operating system.

Please suggest.

Upvotes: 2

Views: 3058

Answers (2)

Alex DiCarlo
Alex DiCarlo

Reputation: 4891

To find what usb devices are connected to the system you can use jUSB. This article has more in-depth information on how to use the api. In particular, to find all usb devices (slightly modified from the article):

Host host = HostFactory.getHost();
// Obtain a list of the USB buses available on the Host.
Bus[] bus  = host.getBusses();

// Traverse through all the USB buses.
for (int i = 0; i < bus.length; i++) {
    // Access the root hub on the USB bus and obtain the number of USB ports available on the root hub.
    Device root = bus[i].getRootHub();
    int totalPorts = root.getNumPorts();

    // Traverse through all the USB ports available on the 
    // root hub. It should be mentioned that the numbering 
    // starts from 1, not 0.
    for (int j=1; j<=total_port; j++) {
        // Obtain the Device connected to the port.
        Device device = root.getChild(j);
        if (device != null) {
                    // USB device available, do something here.
        }
    }
}

Similarly, you can use the api for MIDI systems to find what MIDI devices are connected, see the java tutorials for more information.

Upvotes: 2

sadaf2605
sadaf2605

Reputation: 7540

I think you should try commandline via java Runtime.getRuntime().exec(command);

According to this site http://michaelminn.com/linux/command_line Following command should return this: 

lspci: Lists information about devices connected to the internal PCI busses.

lspci -vv: Full dump of information.

so

String command="lspci";

And from windows you may need to download DevCon command! http://support.microsoft.com/kb/311272/EN-US

so

String command="devcon find";

Upvotes: 0

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