i2c blocking

bar.js

console.log('init');
var bar = new Foo();

console.log('bind');
bar.on('initialize', function() {
  console.log('init received');
});

Foo.js

function Foo() {
  Emitter.call(this);
  
  this._init(function(error) {
    console.log('init done');
    if (error) {
        that.emit('error', error);
    } else {
        that.emit('initialize');
    }
  });
}

util.inherits(Foo, Emitter);

Foo.prototype._init = function(callback) {
    this._wire = new I2c(FOO_ADDRESS, {device: '/dev/i2c-1'});

    that._wire.writeBytes(CMD_ENABLE_OUTPUT, [0x01], function(error) {
      if(error) return callback(error);
      
      that._wire.writeBytes(FOO_CMD, [0xFF, 0xFF, 0xFF], callback);
    });
}

outcome

actual outcome:
-----------------
init
init done
bind

expected outcome:
-----------------
init
bind
init done
init received