A critical tool when developing an embedded system in C is an understanding of how pointers work. Misunderstanding pointer fundamentals can result in long hours spent debugging a system or a hidden ...

Raindrops on roses, and whiskers on kittens. They’re ok, but state machines are absolutely on our short list of favorite things. There are probably as many ways to implement a state machine as there ...

In our first part on pointers, we covered the basics and common pitfalls of pointers in C. If we had to break it down into one sentence, the main principle of pointers is that they are simply data ...

A concept in C programming that is absolutely essential and fundamental to all software design but often misunderstood is pointers. A pointer is used in C to point to the address of a variable or a ...

In my last column [see LJ December 2002], we covered the serial layer in the 2.5 (hopefully soon to be 2.6) kernel tree. We mentioned in passing that a USB-to-serial driver layer in the kernel helps ...

Welcome to a new column called Driving Me Nuts. Here we are going to explore the different Linux kernel driver subsystems and try to understand the wide range of different interfaces they provide and ...