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-Linux-GCC 4.2.2, installation l
The differences between com. mysql. jdbc. Driver and com. mysql. cj. jdbc. Driver,
Overview: com. mysql. jdbc. Driver is in mysql-connector-java 5, while com. mysql. cj. jdbc. Driver is in mysql-connector-java 6.1. JDBC to connect to Mysql5 requires com. mysql. jdbc. 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, driver. In fact, the kernel also defines such data structures. They are str
How to use the platform device driver to write the driver:-------------------------------------------------------------------------1. Implement device orientation first:1) read the chip manual and obtain resources from the schematic diagram.2) construct a platform device structure and add platform Resources3) link our device resources to the device connection table of the virtual bus.
2. then implement the
Whether you're a MacBook Air or a MacBook Pro, or an imac-all-in-one series, with an Apple computer for a Windows-series system such as Windows7, the download-driven Apple driver Pack can solve all the drive problems with a single click.
CC Not much said, with the driving life of the Apple Driver pack to solve the problem of Apple Computer after the Windows7 drive is very simple, as simple as installing a
Windows Driver Development Foundation, reprint marked Source: http://blog.csdn.net/ikerpeng/article/details/38793995Let's talk about how to compile the driver after it's developed. Generally there are several ways to do this:1. Create makefile file, compile and link with NMAKE tool;2. Build makefile,sources, dirs file, compile with build tool.3. Compile the link with the integrated development environment.I
Windows cannot verify the digital signature of the driver required for this device. A software or hardware has recently changed and may have a signed or damaged file installed, or the file may be an unsolicited malicious software. (Code 52)Recently replaced a new motherboard, upgraded WINDOWS10 RS2 (14955)The good news is that Windows 10 is now like an apple, capable of supporting the coreaudio of those sound cards, and is free-drive.The bad news is t
Fault symptom:When the Driver and Application Installation are used on the Y710 Cube to overwrite the Driver for installing the Killer NIC and Wireless NIC, or the Driver is upgraded and installed, the DAI software cannot be installed.Cause analysis:The Silent installation parameters of Killer NICs and wireless Nic drivers are only applicable to all-new installat
How to write a layered drive (complex character driver)----LCD drive as an example **************Idea: Complex drivers are built on the basis of simple drives, so first know how the kernel simple character device driver writes1. How to simply drive a program1.1 Construction File_operations. open = Drv_open. Read = Drv_read1.2 Tell the kernel there are 1.1 this structure, Register_chrdev (main device number,
How to install the driver in Win8.1 can solve problems such as virtual serial port installation and VMware bridge driver installation ., Win8.1vmwareA virtual machine is installed in win8.1, but there is no virtual network card vmnet0 vmnet1 vmnet8?The network cannot be changed to the bridging status: Is there no host network adapter Without bridging?In win8.1, how does one set the VMware bridging mode to a
Install the MongoDB driver in PHP and the phpmongodb driver.
Reference: http://docs.mongodb.org/ecosystem/drivers/php/
Method 1: Install with PECL
# Pecl install mongo
Enter "no" in the displayed dialog box"
After installation, the system prompts to write mongo. so to php. ini.
Method 2: Applicable only to users who cannot connect to the Internet
In fact, this method is the manual execution version of met
During the summer vacation, I made a project using SSH + mysql5.0 + atat5.5.After deployment to the server (Tomcat is 6.0.32), the test runs normally. The next day, I found that I could not log on. I checked the system and found no problems. I restarted Tomcat and recovered to normal again.Very strange, so I checked Tomcat logs and found the following problems:
2011-9-1 0:15:11 org. Apache. Catalina. startup. Catalina startInformation: server startup in 35866 MS2011-9-1 2:05:43 org. Apache. Coyo
This article is written in November 13, this is only a record of the knowledge that has been covered in this area, may be useful for some knowledge of the futureFor the platform bus model, you can refer to a previous article on the Linux driver platform bus model, which may be helpful for framebuffer driver registrationFirst, the LCD hardware frameworkSecond, LCD software frameworkThird, LCD initialization
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 ordinary citizen, the staff did what the operation
Transferred from: http://blog.csdn.net/yikai2009/article/details/8653697Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.Directory (?) [-]
Blocking
Blocking operations
Non-blocking operation
Blocking mode-read-implementation
Blocking mode-write-implementation
Non-blocking read and write operations
Implementation of instance---read blocking
Instance---key
1. Overviewin general, the 2.6 kernel has been initialized and mounted with a platform bus in the Sysfs file system. So when we write the platform model driver, we need to do two jobs:1: Implement platform Drive 2: Implement PLATForm Device, however There are many other small tasks that need to be implemented in the process of implementing these two tasks, as described later. The core architecture of the platform model-driven implementation process
This document describes how to develop an I2C interface touch screen driver mounted on the friendly mini-2440 platform.
Kernel edition linux-2.6.32.2,The platform is a touch screen with the arm9-s3c2440 + I2C interface.
For exampleLinux I2C driver architectureDescriptionHttp://www.lupaworld.com/273398/viewspace-204237.html
To mount a new I2C device, you need to implement three parts:
1) adapter hard
Linux driver development initialization parameters, linux driver development
First run the Code:
#include
Parameters can be accepted during Linux driver initialization. The command is as follows:
insmod hello.ko howmany=10 whom="Daddy"
Here, two parameters are input, howmany and whom.
To enable the module to receive the two parameters:
1. Include the header
Linux Device Driver Article 5: concurrency and final state in the driver, linux Article 5Summary
In the previous article, I introduced the debugging method of the linux driver. This article describes the concurrency and status encountered in driver programming and how to handle concurrency and competition.
What is conc
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