ALSA stands for the Advanced Linux Sound Architecture. It consists of a set of kernel drivers, an application programming interface (API) library and utility programs for supporting sound under Linux.

Is Linux infrastructure? Or is it just another operating system, like Windows, MacOS and various Unixes? How about the Internet? Is the Net infrastructure? Or is it just the #3 "service" in the ...

As more people and companies start to write Linux kernel code, understanding acceptable kernel programming coding style and conventions is very important. This article starts out by explaining the ...

Linux is a treasure trove of powerful tools, many of which remain undiscovered by casual users. While staples like grep, awk, sed, and top dominate tutorials and guides, there's a second layer of ...

In last month's article, we saw how the Linux input subsystem worked inside the kernel, ending with a quick mention of the event handlers. Each handler essentially provides a different user-space API, ...

In the quest to make small devices cost effective, manufacturers often need to think about reducing the memory size. One option is to find alternative implementations of the abstract data types (ADTs) ...

GRUB: it's neither larva, fast food nor the loveliest of acronyms in the GNU herd of free software. Rather, GRUB is the GNU GRand Unified Bootloader. And, it is truly the greatest loader for booting ...

Have you ever wondered how system calls can be intercepted? Have you ever tried fooling the kernel by changing system call arguments? Have you ever wondered how debuggers stop a running process and ...

Robert Young: It is a great pleasure to have an excuse to reach out to you. How are you and your family? Your kids must be through college by now. Nancy and I and our three daughters are all doing ...

Many Linux administrators and support technicians regularly use the top utility for real-time monitoring of their system state. In some shops, it is very typical to check top first when there is any ...

Since the 2.0 kernel release, Linux has supported a large number of SMP systems based on a variety of CPUs. Linux has done an excellent job of abstracting differences among these CPUs, even in kernel ...

Embedded systems have become a cornerstone of modern technology, powering everything from IoT devices to automotive control systems. These specialized systems rely on software that is lightweight, ...