def create_empty(val=0x00):
    """Create an empty Userdata object.

    val: value to fill the empty user data fields with (default is 0x00)
    """
    user_data_dict = {}
    for index in range(1, 15):
        key = "d{}".format(index)
        user_data_dict.update({key: val})
    return user_data_dict