Well I'm not C/C++ guru but you can use following google.com link to get http://www.google.com/search?hs=2Hb&...ce&btnG=Search

Also see free book (Linux Device Drivers, Third Edition) http://www.oreilly.com/catalog/linux...book/index.csp -- it has info on Interrupt Handling (chapter 10)

If you have any futher question reply back