[REQ]: source code (Embedded Linux) Control Unit
 

Hi,
I'm about to implement an Embedded Linux application which has a control unit, data acquisition, system management and UI modules respectively. The book I'm currently have has no source code. (Building Embedded Linux System, Yaghmour, O'Reilly), I have searched google to no avail. Can anyone introduce some source code/sample code for this type of application?
Thanks in advance
Jack