node-uinput

Linux uinput nodejs wrapper

Installation

npm install uinput

Example

Say hello BYE

var uinput = require('uinput');

var setup_options = {
    EV_KEY : [ uinput.KEY_H, uinput.KEY_E, uinput.KEY_L, uinput.KEY_O,
               uinput.KEY_CAPSLOCK, uinput.KEY_B, uinput.KEY_Y, uinput.KEY_SPACE ]
}

uinput.setup(setup_options, function(err, stream) {
    if (err) {
        throw(err);
    }

    var create_options = {
        name : 'myuinput',
        id : {
            bustype : uinput.BUS_VIRTUAL,
            vendor : 0x1,
            product : 0x1,
            version : 1
        }
    };

    uinput.create(stream, create_options, function(err) {
        if (err) {
            throw(err);
        }

        setTimeout(function() {
            uinput.key_event(stream, uinput.KEY_H, function(err) {
                if (err) {
                    throw(err);
                }

                uinput.key_event(stream, uinput.KEY_E, function(err) {
                    if (err) {
                        throw(err);
                    }

                    uinput.key_event(stream, uinput.KEY_L, function(err) {
                        if (err) {
                            throw(err);
                        }

                        uinput.key_event(stream, uinput.KEY_L, function(err) {
                            if (err) {
                                throw(err);
                            }

                            uinput.key_event(stream, uinput.KEY_O, function(err) {
                                if (err) {
                                    throw(err);
                                }
                            });
                        });
                    });
                });
            });
        }, 2000);

        setTimeout(function() {
            var keys = [ uinput.KEY_SPACE, uinput.KEY_CAPSLOCK, uinput.KEY_B, uinput.KEY_Y, uinput.KEY_E ];
            uinput.emit_combo(stream, keys, function(err) {
                if (err) throw(err);
            });
        }, 3000);
    });
});

API

uinput.setup(options, callback)

• options Object
  • event_type where event_type can be EV_KEY, EV_ABS, EV_REL, etc. and it's an Array with the different events we want the uinput device to handle
• callback Function called when the setup operation ends
  • error Error
  • stream WritableStream to the uinput device.

It configures the uinput device we are about to create.

uinput.create(stream, options, callback)

• stream WritableStream
• options Object. See uinput_user_dev definition in linux/uinput.h
  • name String with the name of the device
  • id Object
    • bustype Number
    • vendor Number
    • product Number
    • version Number
  • ff_effects_max Number
  • absmax Array of Numbers of size: uinput.ABS_CNT
  • absmin Array of Numbers of size: uinput.ABS_CNT
  • absfuzz Array of Numbers of size: uinput.ABS_CNT
  • absflat Array of Numbers of size: uinput.ABS_CNT
• callback Function called when the creation operation ends
  • error Error

It creates the uinput device.

send_event(stream, type, code, value, callback)

• stream WritableStream
• type Number
• code Number
• value Number
• callback Function

It sends an event to the uinput device.

key_event(stream, code, callback)

• stream WritableStream
• code Number
• callback Function

Wrapper over send_event to simulate key presses and mouse clicks.

emit_combo(stream, code, callback)

• stream WritableStream
• code Array with any combination of keys
• callback Function

It sends an event to the uinput device with the combination keys generated.