nodeevdev

Basic libevdev binding for node.js

Example

#!/usr/bin/env node
 
var Evdev = require('nodeevdev');
 
var dev = Evdev.create();
dev.open( '/dev/input/event1', function(obj, err) {
    if( err ) {
        console.log("Evdev: Failed to open device: "+err);
        return false;
    }
    dev['data'] = function(data) {
        console.log("Evdev event: "+JSON.stringify(data, null, 2));
    };
    dev['closed'] = function() {
        console.log("Evdev device closed.");
    };
});
 
// Hack to prevent Node.js from exiting, sorry.
var http = require('http');
var httpServer = http.createServer(function(){});
httpServer.listen(8084);
console.log("Listening for keyboard input...");

Methods

Factory

evdev::create()

Returns an initialised evdev object.

• Returns: An initialised evdev object.

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evdev object

evdevObject::open( path, callback( evdevObject, error ) )

Open an evdev device, associate it to this object, and fire the provided callback upon completion.

The parameters passed to the provided callback function are evdevObject which is a reference to the evdev object, and error which will be an error string in the case of an error, or undefined on success.

• Returns: A reference to itself.

evdevObject::data( evdevEvent )

A virtual method of the evdevObject. Reimplement it to handle evdevEvents. It can be ignored, but if you ignore it, you might as well not use this module at all.

evdevObject::closed( evdevObject )

A virtual method of the evdevObject. Reimplement it to react to the device being closed. Otherwise it can be ignored.