In the Linux kernel, The framebuffer (POST buffer) driver is the display driver standard. framebuffer abstracts the display device as the POST buffer. After the user maps the memory to the process address space, you can directly perform read/write operations, and write operations can be immediately displayed on the screen. Related display drivers and interfaces are available in Linux kernel/Linux/Drivers/Vi
Recently read a lot of kernel programming and drive development tutorials, also refer to some of the Development Board examples. The conclusion is not as high as you can imagine. Developing a driver requires a certain understanding of the kernel, not a thorough interpretation.
The drivers referred to below are for specific devices and are made to work in dynamic loading of modules. The driver framework is layered, some
One key to developing the Microsoft Hyper-V platform is to increase the performance of virtual machines by interacting with hardware. However, many system administrators are frustrated by the performance levels directly carried by Hyper-V. In fact, these performance ultimately involves understanding the I/O stack of the Virtual Machine and how it interacts with the Hyper-V hypervisor.
The management program provides a fully integrated driver, called the synthesis driver, which includes 80% of th
.
Specifically:
Fill in a fbinfo Structure
Use reigster_framebuffer (fbinfo *) to register the fbinfo structure to the kernel
For the fbinfo structure, the most important thing is its fs_ops member. You need to implement interfaces in fs_ops for specific devices.
Whether to use interrupt handling
Memory Access
If the video card does not have its own video memory, the system memory is allocated as the video memory.
The graphics card comes with a vide
Http://www.driverdevelop.com/
Subtitle:
Author: Yang Jun Article Source: site original hits:10975 updated on:
Editor's note: The content of this article is mainly translated by DriverStudio's random documents. We recommend that you use the following software: DriverStudio2.5, Visual Studio6.0, and Windows 2000 DDK. This document assumes that you have installed these software. DriverStudio2.5 can be downloaded to the test version from the driver deve
unknown device and right-click access properties.In the Properties window, click the Details tab and select a device instance id from the drop-down list.
A letter or digit string, similarPCI/ven_1217 dev_7130 subsys_012f1025 rev_01/4 6b16d5b 0 33f0 is the identification mark of the device. We only need to extract vendor ID (prefix is VEN) and DeviceID (prefix: Dev ). In this example, the supplier ID is 1217 and the device ID is 7130.
Using the identified numbers, you can use some resourc
version
When the device driver needs to support different kernel versions at the same time, in the compilation phase, the kernel module needs to know the version of the currently used kernel source code to use the corresponding kernel API. In the 2.4 and 2.6 kernels, the source code header file Linux/version. H is defined as follows:
Linux_version_code: the binary representation of the kernel version. Each of the primary, slave, and revision versions corresponds to one byte;
Kernel_version (Maj
Address: http://blog.csdn.net/gaoling179/article/details/6284770
In the process of developing a DSP using Visual DSP ++, you can quickly develop applications by applying the device drivers and system service programs that come with the system software without writing the underlying drivers.
(1) Adi has constructed all the drivers and services related to DSP Chi
the Linux structure for continued use.Overall analysis-ReconstructionIf your project does not have a tight schedule, and you can use the portability code repeatedly for future projects, you will analyze the current RTOS application structure based on the time, and how to map them to the Linux structure. For RTOS application code, you need to consider ing RTOS tasks one by one to the viability of Linux Process-based threads, and whether to re-allocate RTOS applications to multiple Linux processe
In this Linux-driven development, a network approach is introduced to introduce two ways to drive development:I. Driver compilation to the kernel1. First select a location to place the driver code, for example: DRIVERS/CHAR/XXX.C2. Add the following to the Drivers/char/kconfig file:Menu "XXX Support"Config xxxTriState "XXX Support"---help---XXX use GPIO as IR input.If you want XXX support, you should say Y
VMWare Fusion 5.0.0-802507 for MAC (without VMware Tools)Https://softwareupdate.vmware.com/cds/vmw-desktop/fusion/5.0.0/802507/core/com.vmware.fusion.zip.tar
VMware-workstation-9.0.0-812388 for Windows (without VMware Tools)Https://softwareupdate.vmware.com/cds/vmw-desktop/ws/9.0.0/812388/windows/core/
Http://xsagaplus.iteye.com/blog/358917VMware is the software that provides a set of virtual machine solutions, the main products are divided into the following three.Vmware-esx-serverThis version does not require the support of the operating system. It is an operating system that is used to manage hardware resources. All the systems are installed on top of it. With remote Web management and client management capabilities.Vmware-gsx-serverThis version will be installed under an operating system,
Compiling of Linux kernel modules and drivers-general Linux technology-Linux programming and kernel information. For details, refer to the following. The Linux kernel is an integral structure, so it is very difficult to add anything to or delete some features to the kernel. The kernel mechanism is introduced to solve this problem. This allows you to dynamically add or delete modules in the kernel.
The module is not compiled in the kernel, so the kerne
The following articles mainly introduce three different types of JDBC drivers in Oracle databases. We all know that jdbc drivers in Oracle mainly include the following three types: 1. jdbc oci: oci is the abbreviation of Oracle call interface, which is similar to the traditional ODBC driver.
Because it requires Oracle Call Interface and Net8, it needs to install the client software on the machine that runs
Recently, the focus is on home tickets and renting a house in the coming year. Ah, people who are in Beijing are depressed, and every time they get entangled in things.
Do an advertisement first, our Su Qing classmates finally three times opened Bo, please visit: http://rebeccasu.blog.sohu.com
However, we were lucky enough to have a machine. With safe360, rising KaKa was able to launch the game. After restarting it for n times, it was not effective.
Finally, we finally worked with a powerful hum
Financial small white is just exposure to investment and financial management, but not very well know how to invest in financial skills and methods, and investment in old drivers of different types of investment and financial management, the income of financial management, investment specific background and methods have a deep grasp, should be, the investment of old drivers have more ways in financial manag
pci driver structures: the new style Driver (that is, the pci layer is used for a large number of device detection)Working and supports hot swapping) and old-style drivers (that is, the driver itself detects the device ). Unless you have a good reason, do not use the old style to write the driver. When the driver finds the driver, perform the following steps:Enable DeviceAccess device configuration spaceDetect Device resources (such as base address a
Create a new directory named usbip in "$ (KERNELSOURCE)/drivers/usb/" directory, copy all driver files into that directory. The directory file list below:| USB IP| ---- Stub. h| ---- Stub_tx.c| ---- Stub_rx.c| ---- Stub_dev.c| ---- Stub_main.c| ---- Usbip_common.h| ---- Usbip_common.c| ---- Usbip_event.c| ---- Vhci. h| ---- Vhci_hcd.c| ---- Vhci_rx.c| ---- Vhci_tx.c| ---- Vhci_sysfs.c
Create a Kconfig file in "usbip" directory with contents below:##
Note: a good article on understanding PCI devices and PCI drivers
To understand the Linux PCI device driver, first understand that the so-called Linux PCI device driver actually includes the Linux PCI device driver and the device driver. I do not know whether the reader understands this sentence. I think this sentence is very important. For drivers like PCI and USB, we must understand this concept, in order
How to make the system do not load certain hardware drivers, such as sound card drivers (I am a server)Is there any other elegant way to re-compile the kernel?Debian:/sys/devices # lsmodModule size usedNls_utf8 1760 1CIFS 208948 1Nls_base 6820 2 nls_utf8, CIFSNFSD 186928 1Lock 54568 1 nfsdNfs_acl 2912 1 nfsdAuth_rpcgss 33952 1 nfsdSunRPC 162528 4 NFSD, lockd, nfs_acl, auth_rpcgssExportfs 3936 1 nfsdIPv6 235
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.