Flexible Array Member in C (FAM)

Flexible Array member in C

Before explaining the Flexible Array Member, It would be useful and easily understandable, if I explain the problem that we have. Flexible Array Member in C Problem Let’s take one example where I have to create one structure with variable size of the array. See the below snippet. typedef struct { char name[14]; char age; … Read more

Linux Device Driver Tutorial Part 41 – SSD1306 I2C Linux Device Driver using Raspberry PI

SSD1306 I2C Linux Device Driver

This is the Series on Linux Device Driver. The aim of this series is to provide easy and practical examples that anyone can understand. This is the Linux Device Driver Tutorial Part 40 – SSD1306 I2C Linux Device Driver using Raspberry PI. We are using the Raspberry PI 4 Model B for this demonstration. SSD1306 I2C Linux Device … Read more

Linux Device Driver Tutorial Part 25 – Sending Signal from Linux Device Driver to User Space

Sending Signal from Linux Device Driver to User Space

This is the Series on Linux Device Driver. The aim of this series is to provide easy and practical examples that anyone can understand. This is the Linux Device Driver Tutorial Part 25 – Sending Signal from Linux Device Driver to User Space. Prerequisites In the example section, we explained signals using the interrupt program. So I … Read more

Linux Device Driver Tutorial Part 22 – Mutex in Linux Kernel

Mutex in Linux Kernel

This is the Series on Linux Device Driver. The aim of this series is to provide easy and practical examples that anyone can understand. This is the Linux Device Driver Tutorial Part 22 – Mutex in Linux Kernel. Prerequisites In the example section, I had used Kthread to explain Mutex. If you don’t know what is … Read more

Understanding of container_of macro in Linux kernel

Understanding of container_of macro in Linux kernel

The Linux kernel contains a very useful macro named “container_of”. This article is about Understanding of container_of macro in Linux kernel. This article includes a simple program that illustrates how this macro is used, and explains why it is so useful. Understanding of container_of macro in Linux kernel Introduction Now we will assume that we have … Read more

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