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 doo
Call other driver functions in the driver (fastcall)
Author: Lai yuping (auly) aulyp@163.com
In embedded systems, some communication ports are public, such as IIC ports and serial ports. Drivers of these ports are usually written by the OEM manufacturer and tested, relatively stable. We do not need to write an IIC driver when developing drivers for other devices
This kind of driver mainly presents streaming function interfaces, including XXX_Init, XXX_Deinit, XXX_Open, XXX_Close, XXX_Read, XXX_Write, XXX_Seek, XXX_IOControl, XXX_PowerUp, XXX_PowerDown, etc, note that the preceding interfaces must be output, and XXX must contain three characters. Otherwise, an error occurs. You can manually call the RegisterDevice () and DeregisterDevice () functions to load and uninstall the
Kernel 2.6.29.4 USB devices are actually complicated, but the Linux Kernel provides a subsystem called USB core to handle most of the complicated work. Therefore, the interface between the driver and USB core is described here.In the USB device organization structure, there are four layers: device, config, interface, and endpoint.A brief description of these four layers is as follows:A device usually has one or more configurations.Configuration often
Linux Device Driver Article 2: How to implement a simple hello world Driver
The previous article introduced the concept of the linux driver and the basic category of the device driver in linux and the basis and differences of each category, this article describes how to write a simple test
Article title: describes the driver framework and driver loading in Linux. 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, and open source.
This section describes the Linux device driver framework, driver
.
B)You can either directly send a keyboard, mouse, or other message to the game process by determining that obstacles, monsters, and other things on the map have crossed the map. Of course, killing monsters is done by simulating buttons.
However, with the destructive impact of plug-ins on the game, anti-plug-ins and plug-ins have been entangled in the kernel layer, such:
1,To prevent external callsWindowsA series of key systemsAPI(For exampleOpenProcess,Read/writevirtualmemoryAnd so on)
The wince application was started two years ago. However, due to division of labor, there has never been a chance to gain a deep understanding of the development of the wince Driver (including Pb-related system customization ). If it weren't for the fakegps development work that was scheduled by Ma Ning some time ago, I really don't know when to understand the wince driver development.
Fakegps is a disguise
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
1, the graphics driver version and the graphics card is not compatible, graphics driver version is very many, not the latest graphics driver is suitable for your graphics card, some old graphics instead of using the older version of the driver more stable, such a situation is recommended to download when the display of
During hardware power-on initialization, the BIOS checks all PCI devices and assigns a physical address to each device. The address is obtained and written to the configuration space of the device through the bios, And the CPU cannot be accessed directly, the driver can map this configuration space to common memory through ioremap for CPU access.
When the operating system is initialized, each PCI device is assigned a pci_dev structure and the previous
After explaining the framework of the dm9000 NIC Driver in the first blog in this series, we should analyze this "giant thing" for beginners by module. This article first explains the. Driver and. Remove branches. What? I don't know what the two things are? Please first look at the younger brother this series of first blog (http://blog.csdn.net/jarvis_xian/archive/2011/06/10/6537446.aspx ).
Before introduc
★ Overall IntroductionLED driver mainly realizes the hardware drive of 4 LED lights on the TQ2440 Development Board, realizes the Pin GPIOB5, GPIOB6, GPIOB7, The high and low level setting of the GPIOB8 (the configuration of the PIN is already implemented in the COMMON-SMDK.C), the driver is called by the test program, and the LED light is illuminated by command.★ Specific Introduction 1,
Video:Driver Registration: Http://pan.baidu.com/s/1i34HcDBDevice registration: Http://pan.baidu.com/s/1kTlGkcRBus _ Device _ driver registration process? Registration flowchart? Devices generally need to be registered before they can register the driver– Now more and more hot-pluggable devices, in turn. Register the driver first, the device is registered againEqu
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
From: http://blog.chinaunix.net/uid-22917448-id-1765508.html
ASoC Machine Driver
ASoC machine driver==============================
The ASoC machine (or board) driver is the code that glues together the platformAnd codec drivers.ASoC machines or board-level drivers are code that binds the platform and decoder drivers together.
The machine
Before we loaded the driver is the use of instdrv this application, the principle is to write the corresponding fields in the registry, this section we manually write code to load the driver, the principle is similar:The dynamic loading of a device driver is primarily done by the Service Control Manager (MANAGER,SCM) system component . Loading and unloading NT dr
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