X10 (Home automation) Cape board for Beaglebone

Hi all,

I´m planning to use Beaglebone as Home automation gateway running a
web server for GUI and build a cape board for X10 transceiver, on
expansion headers are PWM and A/D Converters signals exposed, any one
have experience or know where to find documentation for handle PWM and
A/D Converters signals from linux user space ???

Carlos