linux kernel driver tutorial

Discover linux kernel driver tutorial, include the articles, news, trends, analysis and practical advice about linux kernel driver tutorial on alibabacloud.com

[Linux Driver] character device driver learning Note (i)

One, what does the main device number and the secondary device number mean? Linu kernel is if the main device number to find the driver, the secondary device number to find the device.A: Usually a main device number represents a driver, for example, in a block device, a master device number represents a EMMC device, the different secondary device number represent

Embedded Driver Development---Linux ALSA audio driver (i)

Part of this article refers to the blog from Droidphone (http://blog.csdn.net/droidphone/article/details/6271122), about Alsa writing a very good article, just a few examples. This article is a combination of examples to analyze the ALSA audio driver.Development environment: ubuntu10.04Target board: linux-2.6.37 (view Linux kernel information via command uname-r)

"Go" Linux device driver simple character device driver

and a secondary device number. The main device number identifies the driver that is connected to the device file and is used to reflect the device type. The secondary device number is used by the driver to identify which device is operating and to distinguish between devices of the same type.In the Linux kernel, the d

Linux Kernel Analysis--the first chapter introduction to Linux Kernel

Chapter One introduction to the Linux kernelFirst, the History of Unix1. The Unix system is the root cause of a strong, robust and stable operating system:(1) Simple(2) in Unix, many things are treated as files. This abstraction enables both the data and the operation of the device to be done through a set of identical system invocation excuses: open (), read (), write (), Lseek (), and Close ().(3) Unix kernel

Arm-Linux driver-MTD Driver Analysis (2)

HOST: Gentoo Linux 11.2 with Linux kernel 3.0.6Hardware Platform: fl2440 (S3C2440) with Linux kernel 2.6.35Original works, reprinted please indicate the source http://blog.csdn.net/yming0221/article/details/7205713 * Link to the arm-Lin

Linux Kernel Analysis Experiment Three: Trace Analysis the boot process of Linux kernel

He Bong + Original works reproduced please specify the source + "Linux kernel analysis" MOOC course http://mooc.study.163.com/course/USTC-1000029000I. Experimental process1, open the shell, enter the start command, the kernel starts to enter the menu program, support three commands help, version and quit.2. Then use GDB to trace the debug

How to Write a USB driver in linux

From: http://hyt19860117.love.blog.163.com/blog/static/127773729201042435553852/ With the improvement of people's living standards, more and more USB devices are used, but Linux still does not fully Plug and Play in hardware configuration. how to configure and use Linux is alsoThis article is intended to help you understand how to develop a USB driver to facilita

[Linux driver] Chapter 6 advanced character driver operations-IOCTL

a group of small numbers starting from 0. To prevent the wrong device from using the correct command, the command number should be unique within the system. To help programmers create a unique IOCTL command code, each command number is divided into multiple single-digit fields. To select the ioctl command number for the driver according to the agreed method of the Linux

1th Linux driver ___ to driver module on account (ii)

From this blog post, we can finally give our driver module First_drv a formal compilation, now he has filled out his account registration information form, from the account of the child only one step!Inside the kernel has its own set of methods to install the driver module, like the Civil Affairs Bureau staff know how to run an account for a person, for an ordina

Linux Driver Development-module driver

The Linux kernel is highly customizable and can be customized by configuring the compilation options.When configuring the kernel compilation option, there are generally three compiler options for the driver, not compiling, compiling kernel-driven, and compiling to module-dri

Linux kernel space and user spatial information interaction method

can write a kernel service program. The program collects all system call requests and logs them to a self-built buffer in the kernel. We cannot implement a complex intrusion detection program in the kernel, so we must extract the records in this buffer into the user space. The most straightforward approach is to write a new system call to implement this buffer d

Learn how to develop a Linux driver. 03-led character device driver for ok6410 Series

In the previous article, we introduced the framework of the character device driver. In this article, we will operate on the real hardware-led. Author: canghai hunter Source: http://blog.csdn.net/embedded_hunter reproduced please indicate the source of embedded technology exchange QQ group: 179012822 I. experiment environment Development machine environment Operating System: Ubuntu 9.10 Cross-compiling environment: Arm-

Embedded Linux Driver Development Practical course

Embedded Linux Driver Development tutorial (kernel driver, watchdog technology, touch screen, video capture system)Http://www.ibeifeng.com/goods-475.htmlConsulting QQ2110053820Course Lecturer: Mr. HanCourse Category: LinuxSuitable for people: advancedNumber of lessons: 109 h

The Linux device model has three important concepts: Bus, device, driver, namely bus, device, and driver.

ZZ from http://blog.csdn.net/fudan_abc/archive/2007/06/23/1662739.aspx By the way, record this blog: the Linux USB driver development of Mingyue may be available in the future. The three important concepts of the Linux device model are bus, device, and driver. that is, bus, device,

Linux Device Driver note-character Device Driver

Article Title: linux Device Driver note-character Device Driver. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded syst

Design and Implementation of Linux kernel (II)-Preparations for kernel development

Before trying kernel development, you need to have a general understanding of the kernel. Main Content: Obtain the kernel source code. The kernel source code is structured and compiled. kernel development features 1. obtain the kernel

Linux kernel modules written in a detailed

. What the modules can do is limited-for example, they can't add or subtract fields from public data structures such as process descriptors (LCTT: It can disrupt the entire kernel and the system's functionality). However, in other ways, they are mature kernel-level code that can be compiled into the kernel at any time when needed (so that all restrictions can be

Framebuffer driver Framework for Linux driver framework

1. What is Framebuffer?(1) framebuffer frame buffer (one screen data) (FB) is a virtual device in the Linux kernel, Framebuffer provides a unified standard interface display device to the application layer. Frame buffer (framebuffer)is an interface provided by Linux for display devices, a device that abstracts the graphics memory, allowing the upper-level applica

Linux OS kernel compile detailed _unix Linux

Introduction to the Kernel Kernel, is the core of an operating system. It is responsible for managing the system's process, memory, device driver, file and network system, which determines the performance and stability of the system.linux is an important feature of the openness of its source code, all the

Linux kernel--kernel data type

jiffies : Jiffies for linux core variables timer interrupt,jiffies variables are added. Page sizeWhen using memory, remember that a memory page is page_size bytes, not 4KB. The associated macro definition is page_size and Page_shift (contains the number of bits that shift an address to get its page number). If the user space program requires this information, you can use the GetPageSize library function.If a

Total Pages: 15 1 .... 11 12 13 14 15 Go to: Go

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.