Migrating from Xorg to Wayland in Linux
In the ongoing evolution of Linux graphics stacks, one of the most transformative transitions that the community is actively engaged in is the migration from Xorg to Wayland. For decades,...
Concepts
Real-Time Video Processing Pipelines with V4L2, DRM/KMS, and Hardware Encoders in Linux
Real-time video processing on embedded Linux platforms has evolved from a niche requirement for high-end multimedia systems into a core necessity for modern edge devices, surveillance systems, automotive infotainment units,...
Using OpenCL and GPU Acceleration in Embedded Linux for Edge AI/ML Inference
In the evolving landscape of embedded systems, the demand for executing sophisticated artificial intelligence and machine learning models directly on the edge has never been higher. Whether it is a...
Tracing System Calls in Embedded Applications with strace, ltrace, and auditd in Linux
When working with embedded Linux platforms, especially those running mission-critical applications, understanding what your software is doing beneath the surface is not a luxury—it’s a necessity. In the embedded space,...
Kernel Lockup Debugging: Detecting Deadlocks and Softlockups in Custom Drivers in Linux
The Linux kernel is often celebrated for its robustness, its scalability across hardware—from the tiniest embedded boards to the largest supercomputers—and its rich ecosystem of drivers supporting an enormous range...
Diagnosing Boot Time Delays with Bootchart, systemd-analyze, and U-Boot Timestamps in Linux
The boot process of a Linux-based system is often perceived as a simple, linear chain of events — the power is applied, the bootloader runs, the kernel initializes, the init...
Thermal Zones and Dynamic CPU Frequency Scaling on Embedded Linux Platforms
Thermal management on embedded Linux platforms is not simply a matter of preventing overheating; it is a highly integrated balancing act involving hardware design, kernel subsystems, and runtime performance control....
Memory Fragmentation, CMA (Contiguous Memory Allocator), and DMA Buffer Management
Under Linux, memory management is a complex orchestration that balances performance, predictability, and fairness, and one of the most intricate challenges faced in kernel memory allocation is handling memory fragmentation,...
Handling Interrupt Controllers and IRQ Mapping on ARM & RISC-V Based SoCs in Linux
In the intricate world of modern embedded systems, interrupt handling stands as one of the most critical mechanisms that determines how responsive and deterministic a system can be under varying...
Advanced Device Tree Overlays: Enabling Runtime Hardware Reconfiguration on Linux
In the world of embedded Linux, the Device Tree (DT) serves as the central blueprint describing hardware components to the operating system. While a static device tree blob (DTB) is...
