IBM has published the following technical articles, tutorials, and downloads on its DeveloperWorks website. They cover a range of interesting (though not necessarily embedded) technical topics, primarily related to Linux and open source system development. Some require free registration. Enjoy . . . !

• Hacking the Linux 2.6 kernel, Part 1 — In this first of a two-part series, learn about system and environment requirements, the best ways to acquire Linux source code, how to configure and boot your new kernel, and how to use the printk function to print messages during bootup.
• DoJa brings mobile Java to i-mode phones — With more than 40 million subscribers in Japan, NTT DoCoMo's i-mode is one of the most popular wireless Internet services in the world. Most people have heard of i-mode. Less well known is its Java environment, DoJa, which provides a platform for highly interactive, graphical, and networked applications. This article introduces DoJa and its different versions, and explains how it relates to its mobile Java cousin, the Mobile Information Device Profile (MIDP).
• Add a USB Camera to the Kuro Box — In this episode of the ongoing Kuro Box project, learn how to add a USB camera to the machine. This article includes example Linux code to initialize and read from a USB camera through Video4Linux. Also find a brief introduction to edge detection techniques in captured images.
• Quick Community Quotes From Walter Ng of Chartered — Hear our follow-up with Chartered's Walter Ng, and get more of his experienced take on the company's evolution and direction, the new product areas, the Common Development Platform's value, Chartered's Fab 7, and Power Architecture technology.
• Groovy's growth spurt — Groovy took a gigantic leap this past April, with the formal release of a new parser aimed at standardizing the language as part of the JSR process. If you weren't paying attention before, now's the time to start. The new syntax is chock full of enhancements to the language designed for a short learning curve and a big payoff. Resident Groovy practitioner Andrew Glover walks through most important changes to Groovy's syntax and shows you a handy feature you won't find in classic Groovy.
• SWT and JFace, Part 1 & 2: A gentle introduction — Part 1 of this series, you get introduced to Eclipse, the Eclipse SWT, and the JFace GUI tool kits to construct Eclipse and stand-alone rich GUIs. also introduced the basic label, text, and button GUI controls, and the composite, group, and shell container types. Part 2 expands on what you learn in Part 1 and shows you how to creat simple Standard Widget Toolkit (SWT) applications using Java technology, Eclipse, and the SWT and JFace libraries. In addtions to that, it shows you how to use combo, list, table, and tree controls, as well as form layouts and reusable helper methods.
• Prepare for the XML Certification exam — Interested in taking the Certified Solution Developer Exam for XML and Related Technologies. Part 1 will help you prepare for the exam with explanations, examples, practice questions, and tips that cover the following topics: XML basics, Document Type Definitions (DTDs), W3C XML Schema, Web services, and security. Part 2 introduces you to several more critical XML technologies like XPath, XSLT, XLink, XPointer, CSS, XSL-FO, SAX, and DOM.

 
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