So far, Microsoft's latest desktop operating system, Windows 7, has been officially released for more than a year, and the author has changed its computer's operating system for the first time since it was released. After more than a year of use, I am more and more confident of the windows this time, because of its efficiency and gorgeous. I can responsibly say that Windows 7 is definitely the most gorgeous Windows system ever, but that's not the issue we're going to focus on today. So on the ot
Intel publishes two Windows 7 USB3.0 XHCI drivers, one for the intel® 7 Series/c216 chipset family and the other forIntel® 8 Series/C220 chipset family/fourth generation Intel Core TM processor U series platform, sometimes in order to be lazy may be in aThe driver package simultaneously imports the two driver packages, and the drivers in MDT UPDATE 1 simultaneous
Original article: Documentation/I2C/upgrading-clientsTranslator: Guo shaobei2010/05/10
Update I2C drivers to the new 2.6 Driver Model========================================================== ==========
Note: the I2C driver here refers to the I2C client driver, for example, RTC, USBTransceiver driver and so on.
Ben dooks
Introduction------------
This document describes how to upgrade the I2C client driver
Losing the drive disc is a very painful thing to do, although it can be downloaded to the website that provides the driver, but if you don't know what type of product you are using, it is really troublesome. At the same time, in order to achieve better performance, but also need to constantly update, which is very cumbersome. Now the users of the graphics and motherboards using NVIDIA chips are blessed, and through Nvidia's official website, the downl
This article is done original, reproduced please specify the source, respect for the original.Writing this article, I refer to some blogs on the Internet:Http://bbs.chinaunix.net/thread-3634524-1-1.htmlHttp://www.bkjia.com/gjrj/800182.htmlAlso refer to the "Linux driver development in detail" 3.4 chapters, to achieve the establishment of their own drive directory.The driving example in this article is: Linux device Driver Development detailed second edition of global Mem Tow, Song Baohua Editor'
Make [2]: *** no rule to make target 'drivers/Char/tianc_ LCD .o ', needed by 'drivers/Char/built-in.o'. Stop.
Make [2]: *** no rule to make target 'drivers/Char/tianc_ LCD .o ', needed by 'drivers/Char/built-in.o'. Stop.
Make [1]: *** [Drivers/Char] Error 2
Make: *** [
Control program.In addition, routing and address resolution are handled by the kernel.
Loadable Modules
The features provided by the Linux kernel can be extended at run time, that is, when the system is up and running, we can add or remove functionality from the kernel to the kernel.Code that can be added to the kernel at run time is called a "module."The Linux kernel supports several types of modules, including but not limited to device drivers.Each module consists of target code
This is a 2014kdd, geographic location service paper.
Contents:
1) First, the author raised a valuable Question: recommend taxi drivers with routes that can be carried to the guests at the minimum cost.
2) Secondly, the novelty of the problem is that in the past, there were scattered recommendation points. This paper is a recommendation route. It can be said that the location service provided goes further.
3) then, two sub-problems are pointed out: a)
The stream device driver is actually the driver for exporting standard stream interface functions. This is the definition above. In wince, all stream devices export stream device interfaces, so that Device Manager in wince can load and manage these stream device drivers.
Architecture of stream device driver
First, I declare that I copied this image. When wincestarts, oal(oal.exe) First loads the kernel. DLL, and then kernel. DLL load device. DLL, devi
How to use the device tree of linux drivers and how to use the device tree of linux drivers
The Device Tree describes the hardware from the software perspective, and DTS is the Device Tree source file. DTC is responsible for converting DTS to DTB, and DTB is the binary form of DTS for machine use.
The Device Tree is a tree structure. Each child node except the root node has a unique parent node, which can h
device in the private_data member that represents the opened file pointer filp for other operation functions.
Release Operation:
int yjpLED_release(struct inode *inode, struct file *filp){filp->private_data = NULL;return 0;}
Release the content allocated by open in filp-> private_data.
Write operation:
ssize_t yjpLED_write(struct file *filp, const char __user *buf, size_t count, loff_t *f_pos){ssize_t retval;struct yjpLED *dev;dev = filp->private_data;if(down_interruptible(dev->sem))return -ERE
Poll for linux drivers and poll for linux driversPOLL operations
1. POLL execution process:
Poll is a system call. Its kernel entry function is sys_poll. sys_poll calls do_sys_poll directly without any processing. The execution process of do_sys_poll can be divided into three parts:
1. Copy the input pollfd array to the kernel space. Because the copy operation is related to the array length, this is an O (n) operation, in do_sys_poll, the code in this
This document describes how to use ctl_code to communicate with a Windows NT driver. generally, user-Mode Applications can communicate with kernel-mode drivers by calling createfile and deviceiocontrol, if a driver in the kernel state wants to perform similar operations with another driver, how can this problem be achieved? Next, we will provide a detailed description.
The main idea is to first get the handle of another driver, then construct an IRP,
double-click Install. CMD, restart the computer, and Press F1 to enter bios. In config-> select Serial ATA (SATA), change the option to ahci, and press F10 to save and exit, after entering the system, right-click the PCI device under the IDE ata controller in the Device Manager, select Update driver, select the specified location for installation, and specify to C: search and install the/Drivers/win/imsm d
Many Linux application developers and Linux Device Driver developers are excited and excited in the face of constantly upgrading linux kernels, GNU development tools, and various graphic libraries in Linux environments. I am excited that new software and tools provide me with more powerful functions. It is very tedious to adapt to the features of new software and build a new environment. This article will discuss how to learn Linux device drivers in t
third is downloading drivers from the Internet. The final approach is often to get the latest drivers.
Driver packages for use with Windows 9x typically consist of a few. vxd (or. 386),. DRV,. sys,. dll, or. exe files, most of which are copied to the Windows System directory during the installation process.
How does Windows know what devices are installed and what files to copy? The answer lies in the. i
viewed from the driver-side software"Hangzhou (including Jiaxing, Shaoxing, Jinhua, Huzhou, Yiwu)"Through the owner's Home app view: http://uberhz.avosapps.com/showArticle.html?id=55fb9a0860b2780e16f221f3WuhanBy Owner's home view: http://uberwh.leanapp.cn/mobile/showArticle.html?id=56c8446b1532bc0053376637NanjingView by Owner's home app:Android versionApple EditionChongqingThrough the owner's Home app view: HTTP://UBERCQ.AVOSAPPS.COM/SHOWARTICLE.HTML?ID=55F7C54A60B28E6A6F16A2F2The city where th
If you are interested in Linux user-state driver development, please read this article, otherwise please drift over.user-space Device Drivers in linux:a First Look | initial knowledge of Linux User state device driversuser-space Device Drivers in linux:a first look Mats liljegrensenior software ArchitectDevice drivers in Linux is traditionally run in kernel spac
1. Overview
I have read Linux Device Drivers 3 (photocopy) (ldd3 for short) and I have forgotten about it. So I want to take a note of what I have read before, and focus on the comments and understanding of the Code. I am also a beginner in Linux kernel, so I will introduce every detail in the learning-driven process step by step. It is hoped that these blogs will help others, like me, find new entry in the Linux driver and kernel learning field while
external representation in the Code, the Code does not need to be changed even if the internal data type changes again in the future.
Common macros are:
The official registry cannot statically allocate these additional available device numbers, which can only be used when handling special requirements for device numbers. In fact, for assigning device numbers and creating device files, it is more likely to process device files in a highly dynamic manner.
3.2 dynamically allocat
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