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 ...

The previous two posts (part 1 and part 2) have been exploring the fundamentals of using pointers from the basics of declaring a pointer to the more complex notation of manipulating pointers. An ...

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 ...

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 ...

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 ...