Job Responsibilities: Responsible for USB low-level driver development for Windows systems. Job requirements:
1. Familiar with the Windows kernel and have experience in Windows USB driver development (including WDM, DDK development).
2. Be proficient in driver debugging methods and debugging tools. Applicants who are familiar with USB interface protocols and have experience in USB device development are preferred.
3. Be proficient in hardware driver and hardware USB driver protocol development, and have solid C/C and multi-thread programming skills;
4. Be hard-working and have good teamwork skills.
For beginners, we need a simple example, just like HelloWorld in C language, compile and run, and then print out "Hello world!".
We must first establish a preliminary and strong perceptual understanding of WDF drivers, and then learn the concepts of WDF by comparing examples and see how its code is implemented, so that we will have a profound understanding. . This is what is called step-by-step in education.
According to this idea, we first need to compile, install and run a simple driver example.
After browsing the WDF examples, I found that the Echo example is more suitable for our idea. Let's start compiling, installing and running the Echo example.
I did the experiment under XP. If it is under other operating systems, it will be similar. Before starting the experiment, readers can download the WDK development package from Microsoft's website, which is about 700Mbytes in size and requires patience to download.
The Windows kernel driver development process can be roughly divided into the following steps:
Determine driver requirements: clarify the driver types and functions that need to be developed, such as file system drivers, network drivers, and device drivers wait.
Learn Windows kernel programming: Be familiar with the relevant knowledge and techniques of Windows kernel programming, including understanding the difference between kernel mode and user mode, understanding kernel objects and kernel API, etc.
Create a driver project: Create a driver project in Visual Studio and select an appropriate driver template, such as WDM driver template, KMDF driver template, etc.
Writing driver code: According to driver requirements, write corresponding driver code, including driver initialization, device creation, device I/O processing, etc.
Compilation and debugging: Compile the driver code and use debugging tools to debug, such as WinDbg, KD, etc.
Signing and deployment: In order to load the driver normally on a 64-bit version of Windows system, the driver needs to be digitally signed and deployed to the target system.
Testing and verification: Test and verify the driver on the target system to ensure that the driver can work properly and meet the requirements.
Optimization and maintenance: Optimize and adjust based on test results, fix possible problems, and continue to maintain the driver to adapt to system updates and changes.
It should be noted that driver development requires certain professional knowledge and experience. It is recommended to fully learn relevant knowledge and refer to official documents and tutorials before carrying out driver development. In addition, driver development involves the operation of the underlying system. Improper development and use may cause system instability or even crash, so please operate with caution.
In Windows systems, you need to install a complete set of drivers for the motherboard, optical drive, graphics card, sound card, etc.
If you need to connect other external hardware devices, you must also install the corresponding drivers. For example: for external game hardware, you need to install drivers for handles, steering wheels, joysticks, dance mats, etc., and for external printers, you need to install printer drivers. To access the Internet or connect to a local area network, you need to install drivers for network cards, Modem, and even ISDN and ADSL.
Just reinstall the driver. The specific steps are as follows:
1. Turn on the computer, move the mouse to "Computer", right-click the mouse, bring up the menu, and click "Device Management" "Device Manager" to enter the "Device Manager" interface.
2. Double-click the "IDE ATA/ATAPI Controller" option to enter the next interface.
3. Right-click "Intel(R)8 Series/c220 senies 4ATA Storage Controller-800", bring up the menu, click "Update Driver", and enter the following interface.
4. Select "Automatically search for updated driver software", and the system will automatically execute the command to find the drivers for the sound card and graphics card and install them into our computer.
Software is divided into two types: C/S B/S. B/S is the web page. Nowadays, .net generally uses C# and C/S generally uses VC more, but there is also VB. It is hard to say about the future development. I can only say it. If you want to make money and do software development now, C# must be the best choice
1. Right-click This Computer on the desktop and click Properties in the pop-up menu.
2. Click Advanced System Settings in the opened interface.
3. Click Hardware in the opened interface.
4. Click Device Installation Settings in the opened interface.
5. In the pop-up window, click Yes to turn on the automatic driver update function, click No to turn off the function, click Save changes to complete the settings.
Linux development and windows development refer to developing software on Linux and developing software on WINDOWS respectively. At the beginning you may think they are very different, but as the development progresses, you will find that there is not much difference between them. The main difference is that you need to consider the characteristics and environment settings of Linux and WINDOWS respectively, but in essence, the programming ideas are the same.
Prerequisite C language foundation, and a simple understanding of assembly, program development for windows or other platforms. Briefly understand driver development, and then find a tutorial, video, or web page to implement a simple driver, such as key control, driver injection, and the like. Then read Tan Wen's new "Windows Security Protection" and then supplement it. Basics, such as debugging, understanding of the system, etc. Just reading books is useless. As for 64-bit driver installation, there are several free methods available on test machines. You don’t necessarily need to spend money to buy an autograph.
Driver development definitely requires common basic knowledge of hardware, but many hardwares have corresponding instructions. When writing drivers, you just need to follow the hardware specifications.
Embedded is A hardware system, and an ordinary PC is also a hardware system. The driver just makes the hardware run.
The driver is the kernel, which can be a PC or embedded
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