How to run:
===========
Using python3:
$ python fwupdater.py [--target={ALL,WRU481,WRO411}] [--filewru481=/path/to/wru481.fw] [--filewro411=/path/to/wro411.fw]
with:
--target = specify the target(s), when not provided then default is ALL
--filewru481 = path to WRU481 firmware file, when not provided then default is /usr/lib/firmware/vaisala/wru481.fw
--filewro411 = path to WRO411 firmware file, when not provided then default is /usr/lib/firmware/vaisala/wro411.fw

examples:
1. update both WRU481 and WRO411, firmware files are in default location
$ python fwupdater.py
2. update WRU481 only, firmware file path is provided
$ python fwupdater.py --target=WRU481 --filewru481=/home/radarop/fw_files/WRU481_APP_v10.2.9.fw

Legend:
=======
# : required root access
$ : user access is sufficient

Installation of dependencies:
=============================

Install TFTPY module (using "pip"):
# pip install tftpy

Other tools:
============

If "pip" is not installed:
# yum install epel-release
# yum install python-pip
$ pip --version