environment for the Android NDKAndroid NDK needs to have Android SDK to use, it is not a standalone application. This environment is easier to build than the Android SDK.4. Install cross-compilation environmentThe CPU of the X86 architecture employs a complex instruction set computer, and the CPU of the ARM architecture uses a thin instruction set computer. In o
The first chapter of Android Deep Exploration is an overview of Android system porting and Driver development. This section will be a general introduction to Android and Linux drivers.Android is a very good embedded operating system. After several years of development and evolution,
"Lead" in the Android system porting, there is a very important part of the work is to migrate the driver for the hardware device on the new platform. Because Android is built based on the Linux kernel kernel, the porting driver is actually based on the Android platform to d
There have been too many trivial matters recently and there is no time to write a blog. Continue to write the android driver for development and debugging.
This chapter focuses on how to test the driver.
1. Simple driver test
In the previous article, we have finished adding the dri
In the age of smartphones, each brand's mobile phone has its own personality characteristics. It is the unique personality to attract users, create brand cohesion and loyalty to the city, the typical representative of the non-iphone. According to statistics, as of May 2011, the App Store software number of 381,062, ranked first, while the Android Market application software number of 294738, followed by the App Store, and is expected to cross the app
With the rapid development of smartphones, especially the explosive development of Android smartphones, Android driver engineers are becoming more and more popular and a highly anticipated position, because a mobile phone you have developed may change the lives of many people. So, for more information, see Android driv
Android system transplantation and driver development-Chapter 5-Build a test environment for the Development Board and android-based development
The embedded system installed on the Development Board is much simpler than that on the mobile phone, and there are many extended interfaces. It is suitable for testing programs. Here we refer to the Development Board of
Test the Linux driver on the android simulator and ubuntu.
Iii. UseAndroidndkTestLinuxDriver
In Android, the main user of the Linux driver is APK.Program. Therefore, you must use the APK program to test the Linux driver. Since the Linux
Develop an android driver that can count words (2)
8,Specify callback function
The content in this section is critical. Regardless of the Linux driverProgramHow complex or "cool" the features are, must allow applications in the user space to interact with the driver in the kernel space to make sense. The most common interaction method is to read and write dev
Part one: Under Windows XP, install the Android phone driver
1. Download the driver package in the attachment and put it on the desktop after downloading.
2. Right-click on the compressed package, extract to the current folder
3. Then we get 6 folders (AMD64, vista_x64, Vista_x86, win7_x64, Win7_x86, xp_x86), respectively, corresponding to the
Purpose: In the android system, use JAVA to write interface programs, call the interfaces provided by the jni intermediate library, operate a driver node, and perform read, writer ioctl, and other operations! This is an important debugging channel for underlying driver developers. It is also a method for providing some special functional interfaces in the
android-goldfish-2.6.29, where goldfish is the Android emulator for the simulated CPU.$ git checkout-b android-goldfish-2.6.29 origin/android-goldfish-2.6.29$ git BranchShow android-2.6.27* android-goldfish-2.6.29We have been wor
System FrameworkPrinciple Description:Adopt distributed network system, install video client software on mobile phone, install camera Server software on remote server, collect camera real-time video, carry out H264 encoding, and publish it in the form of custom TCP server, and use the client software to enter the IP address of the server. Connect and watch live video.Feature Description:Currently learning version supports capture 320*240 video, server-side support boot and 3322 dynamic domain na
The first chapter: Android system porting and Driver development overviewThis chapter is the first door to learn Linux drivers, in this chapter, mainly for Android and Linux driver to do a general introduction, in this chapter, I have a deeper understanding of the development of Linux drivers. The
This article was reproduced in: Great GodIn a previous article, we learned about the binder mechanism in Android and the remote service invocation in this article that focuses on how Android apps work when invoking some system services. Then continue to introduce how to compile the Android source code to manually add a system service, so that the compiled
In a previous article, we learned about the binder mechanism in Android and the remote service invocation in this article that focuses on how Android apps work when invoking some system services. Then continue to introduce how to compile the Android source code to manually add a system service, so that the compiled Android
This article uses the source code in the book "android Deep Exploration (Volume 1): Hal and driver development" as an example to describe how to configure the android driver development and test environment, and how to use build in the source code. the sh script file is used to compile, install, and test the Linux
Essentials of Android Binder driver's Working Mechanism
Recently, I have read many books, articles, and Android source code for Android Kernel Analysis. I feel that I have a thorough understanding of the working mechanism of Android Binder.
However, it takes a lot of time and effort to achieve this. For most people, I
From: http://gmier.com/books/understanding-android-system/chapter2-kernel
We say that android is based on Linux, and the most fundamental reason is that android uses the Linux kernel.
2.1 Android kernel features
The android kernel is based on the Linux 2.6 kernel (the lates
In the previous article, we introduced how to write the Linux kernel driver for the Android system on Ubuntu. In the Linux kernel driver named hello, create three different file nodes for user space access, these are the traditional device files/dev/Hello, Proc system files/proc/Hello, And devfs system property files/sys/class/Hello/Val. In addition, the cat comm
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