nixCraft Linux Sys Admin Blog

Programming Tutorial: How To Write a FreeBSD Kernel Module ( Driver )

Posted: 24 May 2008 11:11 PM CDT

Nice short guide for writing a kernel module for FreeBSD operating system. From the article:

FreeBSD 7.0 has already been released. If you are a real hacker, the best way to jump in and learn it is hacking together an introductory kernel module. In this article Iâ€™ll implement a very basic module that prints a message when it is loaded, and another when it is unloaded. Iâ€™ll also cover the mechanics of compiling our module using standard tools and rebuilding the stock FreeBSD kernel.

=> Writing a kernel module for FreeBSD

Download of The Day: CRON-O-Meter Open Source Dieting Software

Posted: 24 May 2008 10:41 PM CDT

CRON-O-Meter is free, open source, and cross-platform (Windows, Linux and Mac OS X) dieting software written in Java. It is a fully featured nutrition and biomarker tracking tool. Designed for practitioners of Caloric Restriction (CRON) Diets.

From the project site:

CR (Calorie Reduced) diets require a lot of information to perform optimally. In order to restrict caloric intake, but remain healthy, users of the diet must track their vitamin, mineral, and protein intakes with great care.

We aim to provide a complete solution to the CR dieter. Current open-source diet-tracking applications fall short in some vital respects. Either they are not detailed enough, or they suffer from critical usability flaws. We believe that a diet tracker must be effortless to operate for the activity for which it will be used most of the time, keeping track of the foods eaten in a particular meal.

To this end, we are developing CRON-O-Meter, an application that will take into account good usability design and dense functionality. It will provide diet advice, track consumption and exercise, and generally assist in all aspects of a CR diet.