Linux device driver Subsystem first bullet-I2C __linux

1. Overview 2. Data Structure 3. Adapter 4. I2c-core 5. Slave Device 1. Overview 1.1 Definition I2C inter-integrated circuit SMBUS System Management Bus, the I2C subset 1.2 Characteristics  The amount of data exchanged is small. The required data

Linux Basics and Common commands (written interview required) __linux

I. Basic USE X window and text mode switching.Usually we also call the text mode the terminal interface, terminal or console. Linux By default will provide six terminal to allow users to log in, the way to switch to use: [Ctrl] + [Alt] + [F1]~[f6]

The future of cloud computing, Linux system courses

In our study of Linux, because of some translation problems, we will encounter some uncommon, similar words and concepts in our study. Some are difficult to understand, some are easy to confuse. In a Linux system, for a user-created process (thread),

Linux Common server build-ftp server

Before configuration, please close Selinux,firewallsystemctl Stop Firewalld.service #停止firewallTurn off the default firewall firewall 500 OOPS:vsftpd:refusing to run with writable root inside chroot ()   to fix this error, you can use the command

LINUX Mount USB CD share file

LINUX Mount USB CD share fileFdisk-l Viewing disksParted-l Viewing disksMount device file name mount pointMount/dev/cdrom/mnt/cdrom Mounting DiscsUmount/dev/cdrom Uninstalling DiscsMOUNT/DEV/SDB1/MNT/USB Mount USBUMOUNT/DEV/SDB1 Uninstalling

Application of Linux head file <getopt.h> and its function

This article excerpt from: https://www.cnblogs.com/qingergege/p/5914218.htmlFunction One:int getopt (int argc, char* argv[], const char* optstring);Parameters 1, 2 are the input parameters of the main function, parameter 3 is the option string, and

linux-2.6.22.6 Kernel boot Analysis makefile file

Learning GoalsAnalyze the makefile file to see which files in the kernel are compiled, how they are compiled, and how the order of connections is determined!Linux kernel source code contains a lot of makefile files, these makefile files contain

Linux entry-based system operating level 02

Linux has 7 levels of operation 1.init0 shut down the machine2.init1 Single User (password missing profile modification error)3.init2 full level of No network NFS4.INIT3 Multi-user multi-CPU command line mode5.INIT4 not used, reserved6.init5

Linux account permissions and special rights Management

   user account:          user account            description          Super User     root user, For system administration use.          Normal user      created by administrator or root user, only has full permissions in the user's own host

Linux Process Management

1. Basic overview of the processDefinition: A process is a running instance of an executable program that has been started./proc directory under the name of a directory, each directory represents a process, preserving the properties of the process

Dynamic implementation of Linux related library functions and system calls

Library functionsvoid Memset (void *mem, unsigned char byte, unsigned int len), void _memcpy (void *, void *, unsigned int), int _printf (char * , ...); char * itoa (Long, char *), char * ITOX (Long, char *), int _puts (char *), int _puts_nl (char *)

Linux Operations and Architecture-docker Quick Start

First, Docker introductionDocker is a container container engine built on LXC technology based on the DOCKER.LNC company's open source, which is hosted on GitHub, open source based on the go language and compliant with the APACHE2.0 protocol.Docker

The-linux character set and garbled processing of Linux learning

Linux character set and garbled processing1, the character (Character) is a variety of words and symbols of the general name, including the national text, punctuation, graphic symbols, numbers and so on. The character set (Character set) is a

Linux Disk monitoring Tool description

1.1 IostatThe tools in the system Systat package are counted in kb/s, and 2 is counted as the frequency of 2 seconds:Iostat–x–k 2 10000 rrqm/s: How much of this device-related read request per second is being merge (when the system

Linux Device Tree Syntax detailed

The Linux kernel introduces the concept of the device tree starting from 3.x, which is used to separate the driver code from the device information . Before the device tree appears, all specific information about the device is written in the drive,

Locale,lang in Linux

Locale is a language environment defined by a software runtime based on the language of the computer user, the country or region in which it is used, and the local cultural tradition.Can be found locale in the command, can display multiple LC_* and

Top and FREE commands in Linux (6/15)

Top: The command provides real-time status monitoring of the system's processor. It displays a list of the most "sensitive" tasks for the CPU in the system.This command can be used on a per-CPU basis. Memory usage and execution time sorting

Linux Nine Yin canon of nine yin Bones claw fragment 12 (log function)

One, the transaction logTransaction log: Transactional storage engine self-managing and usingThe transaction log is logged when a transaction has not yet been saved to disk, this time if the system loses power, the committed transaction redo (redo

Linux/windows gpu/cpu version Pytorch installation

Install on Windows:Latest 0.4.0 Version:On the Pytorch official website https://pytorch.org/Select the corresponding version of the installation, Conda installation is relatively slow, it is recommended to choose PIP installation (although still

Linux boot mount Windows shared folder

79573271 (feasible)1. BackgroundThe previous blog describes how to configure the Samba service for Linux so that Windows systems can map shared folders for Linux, so we question:How does Linux access shared folders on other systems? The answer is

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