A Linux command line utility to control usb mail notifiers identified as:

$ lsusb
Bus 001 Device 010: ID 1294:1320 RISO KAGAKU CORP.

Inside the scripts folder you will find some simple bash scripts you can use to control the notifier. For example the script mled-cputemp will make it respond to your CPU's temperature.

$ git clone https://github.com/andmarios/ledcontroller-3bit.git
$ cd ledcontroller-3bit/
$ make

$ ./ledcontroller blue | red | green | aqua | purple | yellow | white |  off

$ sudo make install

$ sudo make uninstall

Take a look inside the scripts directory.

• libusb:1 or libusb-1.0-dev, depending on your distribution
• a system which can compile binaries (package build-essentials for Debian based distributions)

I think this is my notifier but I can't be sure as I bought it a couple of years ago from eBay.

This code (files main.c and Makefile) is a fork of the ledcontroller code by jmrobles (http://robleshermoso.wordpress.com).

My contribution to this code is very small and probably I could never write this on my own. I added support for all the 7 colors of the notifier as the original code only supported the 3 basic colors. Also I hopefully fixed an issue with a warning output at the kernel's log.

The code is distributed under the terms of the GNU General Public License v3. You can find more information and the original license inside main.c.