With this program you can attach icons to your various X10 devices and see them displayed on a toolbar as well as a floorplan of your own. You can also read, write and edit programs to download to the CP-290 controller.
This program commands up to 256 X-10 modules via a CP-290 serial-interface controller plugged into any serial port of your system. You can use it to automate your home! It's also commonly used to provide control over computers and other devices that might need to be powered up or down via a timed command or remote control. The CP-290 controller stores 128 clock-driven events that it will execute when your computer is turned off, so you can even program your computer to turn itself on at a particular time.
You can buy the modules and manual controllers in Radio Shack stores, but the CP-290 serial-interface controller used to command them using your Debian system is slightly harder to find. Instructions on where to order one are included in the documentation of this package.