(Android Deep Exploration (Volume 1): HAL and Driver Development is divided into four chapters, which introduce the underlying development of Android and Linux from four aspects: building the development environment, basic knowledge of Linux drivers and Android HAL, developing high-end technologies of Linux drivers, and analyzing typical Linux driver source code. The experimental environment used in this book is Ubuntu Linux 12.04LTS, Android simulator and S3C6410 development board. In the first chapter, it specifically introduced how to build and use these three experimental environments. Chapter 2 discusses how to develop a complete Linux driver from different perspectives through three complete Linux driver cases (counting the number of words driver, LED driver and buzzer driver). It also introduces how to write Android HAL and how to interact with Linux drivers through a complete case. Chapter 3 introduces the high-end technologies required for developing Linux drivers, including concurrency control, blocked and non blocked I/O, asynchronous programming, Linux suspension and bottom half, time management, memory management and I/O access. The final part analyzes the source code of some typical Linux drivers (RTC driver, LCD driver, audio driver, block device driver, network device driver and USB driver). In depth Exploration of Android (Volume 1): HAL and Driver Development emphasizes the combination of theory and practice. After introducing a lot of basic knowledge, it provides a complete case for each knowledge point, so that readers can better understand Linux driver and Android underlying technology through practical code. This document includes the following annexes:)
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