Exemplo input

components.basic-input.js

import Ember from 'ember';

const {
  Component,
  computed,
  defineProperty
} = Ember;

export default Component.extend({
  /**
  * A model que contém o atributo
  *
  * @property model
  * @type {Object}
  * @default null
  * @public
  */
  model: null,

  /**
  * Propriedade HTML type
  *
  * @property type
  * @type {String}
  * @default 'text'
  * @public
  */
  type: 'text',

  /**
  * Propriedade HTML value
  *
  * @property value
  * @type {String}
  * @default null
  * @public
  */
  value: null,

  /**
  * O nome do atributo
  *
  * @property valuePath
  * @type {String}
  * @default null
  * @public
  */
  valuePath: null,

  change: null,
  keyDown: null,
  keyUp: null,
  keyPress: null,

  init() {
    this._super(...arguments);
    let valuePath = this.get('valuePath');
    defineProperty(this, 'value', computed.alias(`model.${valuePath}`));
  }

});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  model: {
    name: null
  },
  
  actions: {
    keyDown() {
      console.log('evento keyDown disparado');
    }
  }
});

templates.application.hbs

{{outlet}}
{{basic-input model=model valuePath="name" keyDown=(action "keyDown")}}
O nome informado é {{model.name}}
<br>

templates.components.basic-input.hbs

{{input
    type=type
    value=value
}}

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}