Now, let's write our own first character device driver--light LEDs. (Imperfect, back to perfect)
Hardware platform: Exynos4412 (FS4412)
Writing the drive is divided into the following steps:
A--View the schematic, data manual, understand the equipment operation method;
B-Find a similar driver in the kernel, develop it as a template, and sometimes need to start from scratch;
C-Implement
Will drive from the NVIDIA official website download back to enter the text mode directly run the installation, found that prompted the following error:
Error:the Nouveau Kernel Driver is currently into use by your system. This
Driver is incompatible with the NVIDIA driver, and must being disabled
Before proceeding. Please consult the NVIDIA
If you keep reporting this error,First, you do not have the relevant database driver locally (mysql:-->pdo_myql,postgresql-->pdo_pgsql, etc.);Need to performphp-m| Grep-i PDOSee what drive configurations you have;Driver configuration in: Your local PHP file has a php.ini file, search pdo_myql or Pdo_pgsql, which will be used to remove the preceding comma, the comma in the INI file is the meaning of comments
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
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
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
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
If prompted as shown in the installation650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/80/E8/wKioL1dEV62wy0KDAADDzdag63w006.jpg "/>After the installation cannot be completed, the network adapter is not detected, such as.650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/80/EA/wKiom1dEVruTsLvsAACJJb8syHA886.jpg "/>the NIC driver needs to be loaded into the ISO to identify the NIC driver a
[Video] development secrets of Embedded Linux/Android drivers (3) camera driver development and android driver development
Secrets of Embedded Linux/Android driver development (3) camera driver development
Topic introduction:This topic provides an in-depth analysis of the Android mobile phone camera components, so tha
1. What is Framebuffer?(1) framebuffer frame buffer (one screen data) (FB) is a virtual device in the Linux kernel, Framebuffer provides a unified standard interface display device to the application layer. Frame buffer (framebuffer)is an interface provided by Linux for display devices, a device that abstracts the graphics memory, allowing the upper-level application to read and write directly to the display buffer in graphical mode. This operation is abstract and uniform. UseYou don't have to w
The previous article introduced the concept of Linux drive, and the basic classification of device drivers under Linux and the basis and difference of each classification, this article describes how to write a simple test driver like Hello World. and the only function of this driver is to output Hello world.Before writing a specific instance, let's take a look at an important function of the debug program u
We often delete the computer does not use software, the network card driver accidentally deleted. Delete the network card driver can not be downloaded on the Internet drive but your computer does not have a backup drive, there is no system disk, can not restore the system, now how to restore the network card driver?
1
If you are manually uninstalling the NIC
After installing the system does not have the network card to drive cannot connect the net, then how installs the network card to drive? The following small series for everyone to bring Win7 network card driver installation method Introduction, have the need of friends to go to see it.
Win7 Network card driver installation method:
Method One:
Directly with the motherboard drive CD installation. Put the
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