With the real equipment as the model, the equipment panel is built, and the operating parameters of the equipment are obtained in real time, which is displayed on the equipment panel, which is more vivid and intuitive than the pure numerical equipment monitoring system. Today we are building the device panel on the HT for web 3D technology. The equipment we simulate today is the machine room equipment, first to witness the final effect: Let me explai
With the real equipment as the model, the equipment panel is built, and the operating parameters of the equipment are obtained in real time, which is displayed on the equipment panel, which is more vivid and intuitive than the pure numerical equipment monitoring system. Today we are building the device panel on the HT for Web 3D technology.The equipment we simulate today is the machine room equipment, first to witness the final effect:Let me explain t
the device driver, development tools (GCC, GDB, make, and so on) and Linux source code (the version must correspond to the Linux Kernel on the target machine) are required on the host machine, and the target machine only needs to run Linux. Due to the different steps, the following describes how to build the environment and compile the driver in two scenarios: general Linux
With the real equipment as the model, the equipment panel is built, and the operating parameters of the equipment are obtained in real time, which is displayed on the equipment panel, which is more vivid and intuitive than the pure numerical equipment monitoring system. Today we are building the device panel on the HT for web 3D technology.The equipment we simulate today is the machine room equipment, first to witness the final effect:Let me explain t
the device driver, development tools (GCC, GDB, make, and so on) and Linux source code (the version must correspond to the Linux Kernel on the target machine) are required on the host machine, and the target machine only needs to run Linux. Due to the different steps, the following describes how to build the environment and compile the driver in two scenarios: general Linux
router devices bundled together. It can provide dual-SSID parameter settings, wireless Internet users can configure each AP function separately. Using this device, wireless Internet users can easily build two simple and economical Wireless LAN networks. Obviously, to build A wireless dual-network that meets both the Internet access requirements of Department A a
After understanding the datasheet, don't rush to write code, you should first do is to give you will write the driver design a framework.
So what should the framework be based on? Concrete how to build it.
General, from USB drive to I2C Drive, from SPI Drive to serial drive, from PCI driver to DMA driver, and so on, no matter what type of driver, it always has one or several basic fixed routines for you to choose from. If you're going to write a touch
When learning Linux device driver, the first step is to build the kernel tree, first download the Linux kernel, according to the author of Linux Device dervier 3, as long as the linux-2.6.xxx kernel can be, I am a linux-2.6.30.4.Procedure:(1) download the kernel source package, and unzip: [root @ Yanbo kerneltest] # tar-zxvf linux-2.6.30.4.tar.gz(2) [root @ Yanbo
We create an instance of the device by calling the Make_device () function in recovery_ui.cpp , as follows:Class Tardisdevice:public Device { //... all the above methods ...};D evice* Make_device () { return new TARDISDE Vice ();}CompileRecovery_ui.cppwe will introduce how to create a static library for Recovery_ui.cpp by the introduction of the previous article on recovery_ui.cpp .
HTTPS bidirectional authentication to build mobile device security systemFor enterprise projects with high security requirements, we sometimes want to be able to authenticate clients. At this point we can use the two-way authentication mechanism of HTTPS to implement this function.One-way authentication: Ensure that the server is true and that the channel is secure (symmetric key);Two-way authentication: To
1. Problem: The original source code in the root folder belowCompilation appears no space left on deviceUse the df-h command to see the root folder space consumption complete2, change the source code in other places very sufficient to compileIn Make Module_install still appears no space left on deviceBut the folder below is very full of space。 Keep Df-h.The root folder is full.3 workaroundRemove unused files from the root folder, as they go through the root folder at the time of installation.So,
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