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This article is mainly for everyone to analyze the embedded Linux driver design how to understand the relevant knowledge points, the content is detailed and easy to understand, the operation details are reasonable, and it has certain reference value. If you are interested, you may wish to follow Xiao Bian to have a look. Let's follow Xiao Bian to learn more about "how to understand embedded Linux driver design".

Embedded Linux driver design learning, is a natural process, many learners if they hold the idea of rapid learning, then learn embedded Linux driver design. Today, Xiaobian talks to you about how embedded Linux driver design is from entry to mastery.

First, embedded Linux driver design must learn the stage:

First of all, about this direction, there are about three stages of learning:

1. Embedded linux upper application, including QT GUI development

2. Embedded Linux system development

3. Embedded Linux driver development

Embedded system is currently mainly oriented to several operating systems, LINUX, WINCE, VxWorks and so on. Linux is open source free, and its source code is open, more suitable for everyone to learn embedded.

Second, embedded Linux driver design learning methods:

C language is the strongest of all programming languages, MCU, DSP, ARM-like chip programming can be done in C language), so it must be very proficient.

2, operating system principle, is necessary, if you are a computer professional graduation, it does not matter, if non-computer professional must find a relatively simple computer principle books to have a look, what is called "process""thread""system scheduling" and other basic issues clear.

Linux operating system is written in C language, so you should also learn Linux programming first, only you will apply it, in order to further understand the essence of its kernel.

4, understand ARM architecture, principles, and its assembly instructions, we in embedded development, generally rarely write assembly, but the minimum requirement is to be able to understand arm assembly.

5. When porting the system, you need to start with the lowest bootloader, then kernel porting, file system porting, etc. However, the migration part depends heavily on hardware, and its configuration steps are relatively complex, and there is not much detailed information.

6. Drive development

Linux driver design is both a challenging field and a profound one. Linux driver design essentially belongs to the linux kernel programming category, so it is required for linux kernel and kernel programming. You want to know what the linux kernel is made up of before you start, because each part can be expanded into a thick book if you study it in detail. The above is only a rough framework, in the actual development will also involve a lot of things, such as: cross-compilation, makefile, shell script, etc., so that the learning embedded cycle is longer, the threshold is higher, self-study is more need strong learning ability and professional skills.

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