reinstall device driver

This article allows reprint, please specify the source:Http://blog.csdn.net/fulinusThe Linux kernel code is too big, a small module will let you unprepared, this afternoon resolved to take the SPI drive a good look.First analyze the spidev.c file, which defines the members in the struct file_operations structure. Members have Spidev_write, Spidev_read, and Spidev_ioctl, and the first two implement half-duplex communication, which implements full-duplex communication. Of course there are open and

○ DescriptionNote is applicable to linux kernels later than 2.6.10.Take note of the scull program provided by Linux Device driver3 (main. C and scull. h) as the record main line, and in the order of various system calls and function call flows in the driver. For example, module_init () and module_exit () are a pair of system calls, which are generally discussed together in books, but not in this note, there

The Linux driver registration process is broadly divided into two steps: Module initialization Driver Brochure The following is a sample code PCI-SKELETON.C, which is provided by the kernel, to illustrate a PCI device driver registration process. Driver cod

Android framework, Windows MFC, and Linux represent the software framework of the application layer. The problems that the application framework solves include application message processing, UI control display and processing, resource management, and so on. The benefit of the software framework is that the framework will do 80% of the development effort for you to solve a domain problem, and you only need to complete 20% of the development effort. The various subsystems on the Linux p

The Linux driver registration process is broadly divided into two steps: Module initialization Driver Registration The following is a sample code provided by the kernel pci-skeleton.c, detailing the registration process for a PCI device driver. The driver c

Linux is a variant of the UNIX operating system. The principle and idea of writing a driver in Linux is similar to that of other Unix systems, but the drivers in the DoS or window environment are very different. In a Linux environment, the driver is designed with simple ideas, convenient operations, and powerful functions. However, it only supports a small number of functions and can only re

Relationship between bus, device, and driver in Linux 1. Bus: As the connection channel between the host and peripherals, some buses are relatively standard and form many protocols. Such as PCI, USB, 1394, and IIC. Any device can select a suitable bus to connect to the host. Of course, the host may be the CPU itself. The memory is also connected to the host throu

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

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

By Roy G Abstract: The development principle of Linux driver is introduced intuitively. Preface Linux The idea is similar to other Differences Few functions are supported It is not convenient to try It is a variant of the UNIX operating system. It is used to compile the driver principle and UNIX System in Linux, but it has a large driver in the DoS or window

Original URL: http://www.cnblogs.com/biglucky/p/4059582.html The three main members of Linux I²C subsystem I2c_adapter, I2c_driver and I2c_client are briefly described in (a). The relationship of the three is also described in the previous section. There should be a preliminary understanding of the Linux I²c subsystem. The following further analysis of their relationship to the code layer, I think the better the understanding of their relationship, the more conducive to the development

A Linux Device Driver ConceptA system call is an interface between the operating system kernel and applications, and a device driver is an interface between the operating system kernel and machine hardware. The device driver shiel

Character device is one of the three major Linux devices (the other two are block devices, network equipment), character device is the byte stream form of communication I/O devices, most devices are character devices, common character devices include mouse, keyboard, monitor, serial, etc., when we execute ls-l/dev , you can see a large number of device files,C is

Basic concepts of Linux Device Drivers A system call is an interface between the operating system kernel and applications, and a device driver is an interface between the operating system kernel and the machine hardware. The device driver shields the application from hardwar

Preface Linux is a variant of the UNIX operating system. The principles and ideas of writing drivers in Linux are completely similar. Similar to other UNIX systems, but the drivers in the DoS or window environment are very different. In the Linux environment The design of the driver is concise, easy to operate, and has powerful functions. However, few functions are supported. Depending on the functions in the kernel, some common operations should be c

1. Background Sampleblk is a Linux block device drive project for learning purposes. One of the Day1 source code to achieve a minimalist block device driver, the source codes only more than 200 lines. This article mainly revolves around these source code, discusses the Linux block device drive development the basic kn

first, device-driven layered thinking: Take platform device drive, input device driver as an example to see how they embody the layered ideology"1" at the core level: A class of device bus common features, if a device supported by

Hardware driver in Linux system-USB device (on) There are more and more USB devices, while Linux is still not completely plug-and-play in hardware configuration. how to configure and use Linux is becoming a major problem for us. This article describes how to use and configure the driver and how to compile the driver.

driver. It turns out to be caused by Ghost. The same is true if you reinstall the system manually. I packed the two drivers I extracted and put them here. You can download them as needed. Note that if the corresponding motherboard is used, it will not be available. SM bus controller in Device Manager, other PCI bridge devices, and unknown Devices It should be a

Original address: Linux device driver Induction summary diytvgyObjective:(the summary has been basically finished, this time I will be new typesetting and revision.) Mistakes always have, hope can correct! )The previous period of time to learn the embedded driver, while not beginning to find work, this time I will take time to review every day.My summary is based