docs: function ByteCharateristic(opts) {
  	ByteCharateristic.super_.call(this, opts);
  
  	this.on('beforeWrite', function(data, res) {
  		res(data.length == opts.sizeof ? Results.Success : Results.InvalidAttributeLength);
  	});
  
  	this.toBuffer = byte2buf(opts.sizeof);
  	this.fromBuffer = buf2byte(opts.sizeof);
  }