Hi,
After a lot of attempts to make the CM15 to work under linux i found the following page
http://www.somethinginteractive.com/2009/05/06/guide-x10-cm15a-ubuntu/By installing the Jim's driver linked from the bottom of "Step4"
http://www.eclipsehomeauto.com/cm15a_on_linux/cm15ademo.tar.gz i am able to have a basic control of my lights in form of commands, e.g ./cm15ademo a2 on
That is not the desired solution for me as i also use ZoneMinder that whants to talk directly to a serial connected X10 controller but is a nice start.
That is under opensuse 11.2 with kernel 2.6.31.8-0.1-default.
Luck of Linux support for X10 products is very bad for the sales of the X10 products so i believe that X10 should rethink that issue.
Good luck