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- In-depth discussion of Linux driver technology (3) _The implementation principles and related technologies of DMA programming
- In the process of writing Linux drivers, DMA programming is a very important technology. It can achieve high-speed data transmission and improve system performance and response speed. In this article, we will delve into the implementation principles and related technologies of Linux driver technology (3)_DMA programming. DMA, DirectMemoryAccess, is a technology that allows peripherals to directly access memory data without CPU involvement. When the peripheral reads and writes the block of memory, DMAC notifies the CPU through an interrupt. This technology is mostly used to control the amount of data and The data transmission speed has very high requirements for peripheral control, such as display devices, etc. DMA and Cache consistency We know that in order to improve system operating efficiency, modern CPUs
- LINUX 1232 2024-02-13 14:03:03
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- Deepin Linux installation error and Deepin Linux installation tutorial
- Preface Xiaosi Linux is here to share with you the errors that may be encountered during the installation process of Deepin Linux and the installation tutorial of Deepin Linux. Deepin Linux is an operating system based on the open source Linux kernel, which has the advantages of stability, security, and ease of use. , favored by users, but you may encounter some problems during the installation process. Let’s discuss them together. Deepin Linux installation errors During the Deepin Linux installation process, you may encounter some errors, such as being unable to enter the system, the installation program crashing, etc. These errors may be caused by hardware compatibility issues, system setting errors, bugs in the installation program itself, etc. If you encounter these problems, you can try the following methods to solve them: 1
- LINUX 470 2024-02-13 14:00:18
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- Debian 12 'Bookworm” is now released, the best Linux release yet
- The Debian Project today released the final version of the Debian 12 "Bookworm" operating system, a major release that brings several new features, updated components, and many improvements. With its long history of stability and security, Debian 12 is eagerly anticipated by open source enthusiasts around the world. This new version brings many exciting features and improvements, making it the best version yet. After nearly two years of hard work, the Debian 12 "Bookworm" is finally here, powered by the long-term supported Linux 6.1 LTS kernel series. This kernel brings new and updated drivers to support modern hardware and will be officially supported until December 2026. De
- LINUX 1054 2024-02-13 14:00:14
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- RPM vs DEB: Comparative analysis of two software package formats in Linux systems
- There are two common software package formats in Linux systems: RPM and DEB. They are the standard formats of the RedHat series and Debian series respectively, and are used to manage the installation, upgrade, uninstallation and other operations of software. But, do you know what the difference is between them? This article will compare RPM and DEB from four aspects to help you better understand and use these two software packages. How to list the files of all installed software packages in Linux You can use the repoquery command, which is part of yum-utils, to list the files installed by a given software package on CentOS/RHEL systems. To install and use yum-utils, run the following command: #yumupdate#yu
- LINUX 899 2024-02-13 14:00:04
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- 5 Git configurations I use in Linux
- Setting up Git in Linux is very simple, but to get the perfect configuration, I did the following five things:\1. Create a global configuration\2. Set the default name\3. Set the default email address\4. Set the default branch name\ 5. Set the default editor I use Git to manage my code, command line scripts, and document versions. This means that every time I start a new task, first I need to create a directory of files and add it to the Git repository: $mkdirnewproject$cdnewproject$gitinit has some general settings that I've always wanted. Not much, but it saves me from having to configure it every time. I like to take advantage of Git's global configuration capabilities. Git provides manual configuration
- LINUX 440 2024-02-13 13:42:25
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- Debian driver installation and tutorial: Make your system come alive
- Installing drivers in a Debian system is an important step. It allows your hardware and software to work better together and improves the performance and stability of the system. This article will provide you with a detailed tutorial to help you easily install what you need. drive. Understanding the driver A driver is a type of software that allows the operating system to communicate and control hardware devices. Different hardware devices require different drivers, so you need to determine your hardware device model and operating system version in order to find the correct driver. Find and download drivers You can find and download the required drivers through search engines or the hardware manufacturer's official website. Before downloading, please make sure you have confirmed the compatibility of the driver with your hardware device and operating system version. Install the driver 1. Open the terminal: You can
- LINUX 695 2024-02-13 13:42:07
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- Linux multi-thread mutex: a thread-safe synchronization mechanism
- The Linux system is an operating system that supports concurrent execution of multiple tasks. It can run multiple processes at the same time, thereby improving system utilization and efficiency. However, if there are multiple threads in a process, and these threads need to share some data or resources, data inconsistency or resource competition may occur, leading to system errors or exceptions. In order to solve this problem, you need to use some synchronization mechanisms, such as semaphores, condition variables, mutexes, etc. Among them, the mutex is a relatively simple and effective synchronization mechanism. It allows a thread to lock shared data or resources when accessing them to prevent other threads from accessing them at the same time, thus ensuring thread safety. This article will introduce the mutual exclusion method of multi-thread mutex in Linux system, including the method of mutex
- LINUX 443 2024-02-13 13:40:17
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- Seamlessly convert JPG and PNG formats under Linux to make your image processing easier
- In our daily work and life, we often need to deal with various types of pictures. For Linux system users, you may need to convert some JPG format pictures to PNG format, or convert PNG format pictures to JPG format. This is a very common requirement, but how to convert it under Linux system? In this article, we will introduce you to how to seamlessly convert JPG and PNG formats under Linux to make your image processing easier. Although we use the convert command line tool in all examples, you can also use the mogrify command to achieve the same effect. The syntax of the convert command is as follows: $convert input option input file output option
- LINUX 1100 2024-02-13 13:30:12
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- Use Bash script to write a simple and practical Linux health check tool
- Linux is a powerful and complex operating system that can run on various hardware and environments and provide various functions and services. However, Linux also requires regular health checks to ensure the normal operation and performance of the system. Linux has many built-in commands and tools that can be used to check the status and parameters of the system, but these commands and tools may need to be entered and executed manually, which is cumbersome and time-consuming. This article will introduce how to use Bash script to write a simple and practical Linux health check tool, which can check the basic information of the system, resource usage, network connection, etc. with one click. Write script $vimlinuxmi#!/bin/bash#colornotesNC='\
- LINUX 970 2024-02-13 13:18:35
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- Install FlashFXP on CentOS
- In today's tutorial, we will guide you to install FlashFXP on CentOS system, which is a powerful FTP (File Transfer Protocol) client software that can help you easily transfer files between server and client, no matter you Whether you need to upload files to the server or download files from the server, FlashFXP can provide you with a convenient operating experience. Once FlashFXP is installed, you can use FlashFXP to connect to the FTP server. In the main interface of FlashFXP, you can enter FTP server address, username and password to establish a connection. After the connection is successful, you can browse files on the server and local file system in the left and right panels and drag and drop them.
- LINUX 1157 2024-02-13 13:18:25
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- Detailed tutorial on creating desktop installer for Tongxin UOS
- Hello everyone, today I will introduce to you in detail how to create a desktop installer in Tongxin UOS. Tongxin UOS is a domestic operating system based on the Linux kernel. It has the characteristics of stability, security, and ease of use. By creating a desktop installer , we can more easily install Tongxin UOS on other computers, allowing more people to experience and use this excellent domestic operating system. Download the Tongxin UOS image file. We need to download the latest version of the Tongxin UOS image file from the Tongxin official website for subsequent operations. Create a desktop installer in Unongxin UOS, we can use the "Boot Disk Creator" tool to create a desktop installer. After opening the tool, select the downloaded Unongxin UOS image file, and then select the type of installation media to be created.
- LINUX 641 2024-02-13 13:18:07
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- The most basic knowledge: absolute paths and relative paths in Linux
- Path is one of the most basic concepts in Linux, which is something every Linux user must know. Path is one of the most basic concepts in Linux, which is something every Linux user must know. Path refers to how files and directories are referenced. It gives the location of a file or directory in the Linux directory structure, consisting of the name followed by a slash. /home/abhishek/scripts Paths are used when you, as a system user, want to access a file or directory, or have to specify the location of a file or directory for a command or script. cat /home/abhishek/scripts/my_script.sh Remember that if the path starts with a slash "/" then
- LINUX 1135 2024-02-13 13:15:22
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- Introduction to the Linux input subsystem
- The Linux input subsystem is a set of drivers that supports all input devices on the Linux system, including keyboards, mice, touch screens, tablets, game controllers, etc. The core of the input subsystem is the input module, which is responsible for passing events between two types of modules: Device driver modules: These modules communicate with the hardware (for example, via USB) and provide events (key presses, mouse movements, etc.) to the input module. Event handling modules: These modules get events from the input module and pass them to where they are needed (e.g. kernel, GPM, X, etc.) through various interfaces. In this article, we will introduce the basic concepts and structure of the Linux input subsystem, as well as some commonly used commands and tools. We will use Ubuntu
- LINUX 844 2024-02-13 13:09:12
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- CentOS installation Spatialite and CentOS installation run file
- There may be some challenges when installing Spatialite and running files on CentOS operating system. Spatialite is an open source spatial database engine that allows geospatial data to be stored and queried in a SQLite database. Run files are an executable file and usually For installing software or running specific tasks, this article will provide you with detailed steps and instructions to help you successfully install Spatialite and run files on CentOS. CentOS Installation of Spatialite Here are the steps to install Spatialite on CentOS: 1. Open a terminal and log in as root user. 2. Run the following command to update the system package list
- LINUX 1267 2024-02-13 13:09:08
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- Detailed explanation of Deepin Linux network installation steps and Deepin Linux network installation steps
- With the popularity of Linux operating systems, more and more users are beginning to choose to use Linux systems. As one of the well-known Linux distributions in China, Deepin Linux is also favored by users. This article will introduce in detail the steps and steps of Deepin Linux network installation. Notes to help users better install and use Deepin Linux system. Deepin Linux network installation steps 1. Download the Deepin Linux image file. You need to download the Deepin Linux image file from the official website of Deepin Technology for installation. 2. Make a boot disk. Use a boot disk making tool to make a boot disk from the downloaded Deepin Linux image file. You can choose UltraISO, Rufus, etc. as a boot disk making tool. 3. Assume
- LINUX 966 2024-02-13 13:00:08
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