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,…
systems software developer
Code with Kiran – Live Coding – Linux Kernel Programming – Kernel Libraries #coding #demo #kernel
In the case of user-space programs, we use third-party libraries (explicit or implicit), but that cannot happen when you code in kernel space. The libraries share the same address space…
Linux Kernel-Space Socket Programming – Introduction #kernel #linux #networking
Usually as a part of network software development you do socket programming. But this is typically done in user-space, where the user-space socket APIs takes the instructions (via socket API…
VPN Stack Architecture – Linux Kernel Virtual Network Interfaces – OpenVPN – Wireguard – VTun – IPsec
Every VPN stack is architecture is done in a specific way to accomplish fundamental VPN specifications, requirements and goals. As a part of VPN Network stack architecture quite often we…
VPN and Tunnel Network Overheads – MTU – Tunnel Headers – VPN Packet Encapsulations #vpn #networking #sdwan
When you architect and implement a VPN deployment as a part of standalone setup or leveraging VPN technologies as one of your building blocks of your SD-WAN product architecture, one…
Roadmap – How to become Linux Kernel Developer – Device Drivers Programmer and a Systems Software Expert #classes #courses
Many viewers and even sometimes my students ask me how I can become a kernel programmer or just device driver developer and so on. So here is my YouTube video…
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,…
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…