How do I start learning device driver?

7 Steps I follow for developing a Device Driver

1. Step 1: Know about the Hardware.
2. Step 2: Say Hello to your hardware (In other words, talk to your hardware)
3. Step 3: Initialize your hardware.
4. Step 4: Control your hardware.
5. Step 5: Data Communication to your hardware.
6. Step 6: Start and Stop data communication.

What is device driver development?

A driver provides a software interface to hardware devices, enabling operating systems and other computer programs to access hardware functions without needing to know precise details about the hardware being used. When a calling program invokes a routine in the driver, the driver issues commands to the device.

Does Linux have device drivers?

Drivers are used to help the hardware devices interact with the operating system. In Linux, even the hardware devices are treated like ordinary files, which makes it easier for the software to interact with the device drivers. …

CAN driver for Linux?

CAN is supported by Linux device drivers. Mainly two types exist. Character device based drivers and network socket based drivers. The Linux kernel supports CAN with the SocketCAN framework.

How do you program a kernel?

The basic way is to add the code to the kernel source tree and recompile the kernel. A more efficient way is to do this is by adding code to the kernel while it is running. This process is called loading the module, where module refers to the code that we want to add to the kernel.

Which OS has the most users worldwide?

Android
Google’s Android and Microsoft’s Windows are the operating systems with the greatest number of users – around 2 and 1.6 billion users respectively. 2017 is the year when Android overtook Windows to become the most popular operating system.

What is this course on Linux device driver?

This is course is designed for the freshers or professional who wants to learn or enhance their skills on Linux device drivers. This course contains prerecorded Linux Device Driver video classes or Linux Device Driver video tutorials on linux device drivers concepts , which covers from basic to advance concepts . Below is the course outlines

How do I write a device driver for Linux?

For this reason, writing a device driver for Linux requires performing a combined compilation with the kernel. Another way around is to implement your driver as a kernel module, in which case you won’t need to recompile the kernel to add another driver. We’ll be concerned with this second option: kernel modules.

Why can’t we use C++ for device driver development in Linux?

That’s why we can use only these two languages for Linux device driver development. We cannot use C++, which is used for the Microsoft Windows kernel, because some parts of the Linux kernel source code (e.g. header files) may include keywords from C++ (for example, delete or new ), while in Assembler we may encounter lexemes such as ‘ : : ’.

What is a Linux kernel driver tutorial?

Nevertheless, one of the purposes of this short Linux kernel driver tutorial is to show how to work with logging into the kernel and how to interact with device files. These tools may be simple, but they come in handy for any driver, and to some extent, they make the kernel-mode development process richer.