The first example that is always depicted in understanding any coding language (or kernel programming in our case) is to write the hello world example. Let us write a simple kernel program which outputs ‘hello’ and ‘goodbye’.  Below is the sample code for the driver – it has comments placed to explain what each line […]

One would have read this statement in many books/internet sites or heard from different people – “Linux is a Monolithic Kernel”. What this means is that the entire operating system (which includes the device drivers, file system, IPC) are running in the kernel space. In a Micro-kernel architecture most of the OS services are running […]