Udev-discover is the complete graphical device manager application for the linux kernel. It runs perfectly well on Ubuntu. It manages all device nodes in /dev directory of your LInux partiion. 

It runs entirely in user space and you can do adding/removing devices,including firmware load,filter and search devices etc. For hackers working with udev, it offers features like browsing the sysfs tree via udev, monitorize udev device events,reports udev device info and udev properties etc.

Installing udev-discover

Open the terminal and run the following commands one by one

$ sudo apt-add-repository ppa:fontanon/udev-discover

$ sudo apt-get update

$ sudo apt-get install udev-discover

To run:

use following command in terminal

$ udev-discover

Open Source:

Its a open source project and if you want to have a look on its source or want to contribute to it, its hosted on github