CPU clock frequency
 

Hi,
I am using cpufreq utility in my linux kernel. The cpufreq package is good enough to change the cpu frequency on the fly. I study the source code to understand how it happens. Basically two files are changed namely
/proc/cpuinfo and
/sys/devices/system/cpu/cpu0/cpufreq/

But my question is how these files are linked with the hard ware

try this link it can be usefull for you..

http://www.ibm.com/developerworks/li...ry/l-proc.html
http://www.ibmpressbooks.com/article...89712&seqNum=3

For more and detailed knowledge..you can refer some standard materials on embeded systems.

cheers-kd