Core Kernel

Core Kernel

Understanding Linux Kernel likely and unlikely Macros: Optimization Insights

In Linux kernel development, performance optimization is crucial for ensuring efficient execution of code. The likely and … Read more

Understanding sysfs and USB: A Comprehensive Guide for Developers

In the world of Linux, sysfs and USB play crucial roles in system management and device interaction. … Read more

Solved: WARNING: irq-gic-v3.c gic_irq_domain_translate kernel messages

If your are working to port the kernel versions or port the kernels to different platforms, during … Read more

How to override the value of a property in DTS ?

With the continuation of our previous post, where we tried to understand the syntax of DTS files, … Read more

Understanding Linux Kernel GPIO API’s

Request the GPIO GPIOs must be allocated before use, though the current implementation does not enforce this … Read more

How to obtain kernel config.gz of Running Linux / Android Device ?

If we want to check what is the default kernel configuration our device is using, the Linux … Read more

How to print logs on Single Line using PrintK in Kernel ?

In Linux kernel or device drivers if you are using printk, by default every message we pass … Read more

Passing command line Arguments / Parameters to Linux kernel module

In Our previous post, “Writing first Linux kernel Module” We learned how to write a simple Linux … Read more

How to force panic Linux kernel intentionally ?

When you are working with Linux kernel internals or device driver programming, there are chances you see … Read more

How initrd is mounted by Linux kernel ?

Lets first try to understand what are the ways to mount the root file system, Altough the … Read more

Kernel startup entry point / how Linux kernel boots ?

We will consider our hardware platform as ARM, so the kernel startup entry point code is at … Read more