linux kernel driver tutorial

Document directory "Porting the Module Program of Linux Device Driver II on Linux kernel 2.6.x" Project "Porting the Module Program of Linux Device Driver II on Linux

When compiling the scull program of ldd3, the compilation fails, and the problems encountered are the same as those encountered by the following buddies, Follow the steps below to solve the problem and record it here. /*************************************** **************************************** **************************************** ********************/ Recently, I was reading the character device driver scull in

Some time ago when learning the Linux device driver, I looked at the Chen Cossong "deep Linux device driver kernel mechanism" book.Tell the truth. This is a very good book, the author not only gives the device driver development p

Transferred from: http://www.lai18.com/content/432194.htmlDrivers are small programs that enable the kernel to communicate and manipulate hardware or protocols (rules and standards). Without drivers, the kernel does not know how to communicate with the hardware or deal with the protocol (the kernel actually sends instructions to the BIOS first, and then the BIOS

Some time ago when learning the Linux device driver, I looked at the Chen Cossong "deep Linux device driver kernel mechanism" book. To tell the truth, this is a very good book, the author not only give the device driver developmen

Linux Kernel Analysis (4) ---- Process Management | network subsystem | Virtual File System | driver introduction, linux ---- Linux Kernel Analysis (4) I haven't updated it in two days. I analyzed the

After Linux Kernel 3.12 came out, I had been eager to try. However, after installation, I was unable to start the graphical interface. The reason was that the NVIDIA graphics card of my small broken PC used its private driver and the build failed during installation. The company's computers do not have private video card drivers, but they were installed more than

Recently, I have been learning to transplant the kernel and driver to the TQ2440 Development Board. I really feel that this knowledge is very difficult. But from another perspective, the more difficult it is, the more space it can improve !!1. Extract the source code Download a Linux kernel from the Internet and I am u

and macro definition are mostly used in various versions of Linux systems.Where are they defined? Careful users may soon think that they are related to the architecture, so you canLinux-2.6.32.2/ARCH/ARM/plat-s3c24x/gpio. in the c file, find the definition and implementation of the function. The definition and implementation of the function may also change due to the kernel version change, but we only need

Linux Kernel upgrade-update NIC DriverThe current kernel (2.6.32-220. el6.x86 _ 64) upgrade to the target kernel (2.6.33-110. el6.x86 _ 64), but the compiled target kernel (2.6.33-110. the corresponding driver of el6.x86 _ 64) doe

facilitate the description of the process of writing kernel drivers for the Android system, we use a virtual hardware device that has only a 4-byte register that can be read and writable. The first time we learn programming languages, we like to use "Hello, World" as an example, here, we have this virtual device named "Hello", and this kernel driver is also name

Modules_installShell $> make Install# modified grub.conf with a new kernel to discover the NIC driver did not find! But the driver loaded the2.6.20 Shell $> lsmod |grep TG3# View LOG:2.6.20 Shell $> Vim/var/log/message# Find TG3 Related logs:Feb 11:02:01 localhost Kernel:input:PC Speaker as/class/input/input1Feb 11:02:01 localhost kernel:tg3:Unknown symbol pci_c

In-depth Linux Device Driver Kernel Mechanism Basic Information Author:Chen xuesong Press: Electronic Industry Press ISBN:9787121150524 Mounting time: Published on: February 1, January 2012 Http://product.china-pub.com/198916 IntroductionThis is a professional book that describes the technology of Linux devic

Original URL: http://blog.csdn.net/nexttake/article/details/8181008Just read the "LINUX device Driver" written by O ' REILLY. The author has repeatedly emphasized that the kernel tree must be established when writing drivers. The so-called kernel tree, my understanding and online information said the same is a logical

Reference:Http://www.360doc.com/content/12/0723/00/9298584_225900606.shtmlHttp://www.cnblogs.com/biyeymyhjob/archive/2012/07/21/2602015.htmlHttp://blog.chinaunix.net/uid-25100840-id-3147086.htmlhttp://blog.csdn.net/u012719256/article/details/52670098-------------------------------------------------------------------------------------------------In drivers, when multiple threads access the same resource at the same time (global variables in the driver

Today, I will go to Chapter 4 debugging technology of Linux Driver (version 3rd.I. kernel debugging supportWe have already suggested that you learn how to write a driver to build and install your own kernel (Standard main kernel )

; uint8_t Bconfigurationvalue; uint8_t bnumconfigurations; uint8_t bnuminterfaces; } __attribute__ ((packed)); The structure variables of the external devices represented in the Linux system are dynamically registered to the corresponding bus at the startup stage of the system. and registering to the device to the corresponding bus is achieved by calling the Device_add function. The so-called registered device bus is to load the device into the bus

BQ27501 driver compiled into kernel first, the driver compiled into the kernel steps adding programs to the Linux kernel requires the following three tasks: 1. Copy the written source code to the corresponding directory of the

Article Title: kernel learning-Linux NIC Driver Analysis. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, an

Mac module receives data from the network; (4) The Mac module notifies the DMA module to fetch data; (5) The DMA module extracts the appropriate BD from the BD table; (6) The Mac module sends data to the cache corresponding to the current BD; (7) the network device notifies the processor to start receiving data (in interrupted or polling mode ); (8) The protocol layer removes data from the current BD cache. Step (3 )~ (6) The hardware is automatically completed without software intervention, wh