Linux Kernel Driver Device Trees #programming #linux #kernel
thelinuxchannel The Linux kernel is the backbone of the Linux operating system. A device tree is a hierarchical tree structure that describes the various devices that are present in a system,…
Linux Kernel programming
Linux Kernel Programming – Kernel Source-code Porting – Introduction #kernel #linux #coding
At times you may come across some old or legacy kernel source-code which could be something you stumbled across online open-source code or it could be your organization proprietary code…
Linux Kernel Programming – atomic_t datatype – atomic variables and APIs #programming #kernel #linux
If you allocate any global variables and when you access them (i.e read or write) at different parts of the code you are supposed to use locks such as Spinlocks,…
GOTO Statements in Linux Kernel Source #kernel #linux #programming #kernelprogramming #goto
If you are a student you may come across a term called structured programming. Which actually means you write a smooth flow of code and whenever required you steer the…
Q&A – Recursive APIs – why I never use them? #kernelprogramming #linux #systems-programming
When you learn programming usually you learn about various programming constructs. One of them is about calling APIs (functions) recursively. Recursive function calling is quite common in situations such as…
Why Linux Kernel is written in C-language but not in C++ ? #TheLinuxChannel #kernelprogramming
Although the current Linux Kernel source-code contain certain parts of the code written in assembly code (actually native CPU assembly instructions) and recently certain parts of code written in Rust…
Systems Programming – Kernel Crash vs User-space Process Crash
A crash in User-space process (say something like segmentation fault) happens just in process virtual memory address space vs a crash in Kernel space (such as Linux Kernel which is…
Linux Kernel Tasklets – Big-Picture vs User-Space Threads (pthreads)
Linux Kernel Tasklets and Work queues are somewhat similar to user-space process threads in terms of the functionality and of course not in terms of its operation or its internal…
Kernel customization via make menuconfig – Linux Kernel Compilation (or a Kernel Build)
Here is a detailed YouTube video on Linux Kernel custom compilation and customization via make menuconfig interface
What is a Linux Kernel Module – a Big Picture
Learning Linux Kernel Programming is always fascinating and yet challenging. So generally you may tend to learn Kernel Module programming, since such a module can be dynamically plugged into running…