Applications of C Language in Operating Systems The C language is a widely used computer programming language that has become an important tool for operating system development due to its ability to efficiently interface with hardware operations. This article will introduce several applications of C language in operating systems, including process management, memory management, and … Read more
Introduction In industrial control, data acquisition, and communication scenarios, PLX (acquired by Broadcom) PCIe controller chips are widely used. VxWorks 7, as the latest generation of real-time operating systems from Wind River, offers a more modern driver framework – VxBus 2.0. This article will share the complete process of developing PCIe device drivers in the … Read more
Hello, I am Lao Wu, continuing to document my learning insights. 1. Tips for Staying Focused Do the most important tasks in the morning. Stay in a distraction-free environment, such as a library. It’s completely normal to feel a bit of negativity before you start working. Make “happy moments” a part of your plan. Have … Read more
Applications of C Language in IoT: Device Drivers and Communication Protocols Introduction With the rapid development of the Internet of Things (IoT), the C language is widely used in the development of embedded systems and device drivers due to its efficiency and low resource consumption. This article aims to introduce basic users to how C … Read more
1. Core Concept of Unix/Linux File Abstraction “Everything is a file” is one of the core design philosophies of Unix/Linux systems, which essentially means: Unified Interface: Provides a consistent access interface through the file system Abstract Encapsulation: Abstracts resources such as devices and processes as files Simplified Operations: Uses a unified file operation API (open/read/write/ioctl/close) … Read more
Master C Language! Master C Language! Master C Language! Important things are said three times! If you are a university student, please also learn the following courses: Data Structures, Computer Principles (including Assembly), Compiler Principles, Operating Systems. First do the above, don’t rush! To be a good embedded engineer, stay away from impatience! If you … Read more
Libraries are powerful tools! If a device program is perfectly libraryed, it means: 1. All engineers spend minimal effort when porting or creating the device driver. 2. As the number of users increases, it becomes more stable through extensive testing, evolving into a well-deserved public code. 3. The external interface of the library (function names … Read more
Click the blue text above to follow me and read beautiful articles The Linux operating system’s kernel manages various hardware devices in the system, including buses, devices, and drivers. This article will introduce the basic concepts of buses, devices, and drivers in the Linux system, as well as their relationships. By combining the relevant /sys … Read more
FreeBSD 13.5 was released on March 10, as the final update of the FreeBSD 13 series. Users should start planning to upgrade to the current FreeBSD 14 stable series or look forward to the upcoming FreeBSD 15.0 release. FreeBSD 13.5-RELEASE brings many minor software updates, such as updates for XZ, SQLite3, OpenSSH, and other applications. … Read more
Operating System in C: Device Drivers Introduction Device drivers are a crucial component of an operating system, acting as a bridge between hardware and software. Through device drivers, the operating system can control and manage hardware devices such as printers, graphics cards, and network adapters. In this article, we will delve into how to write … Read more