linux driver development pdf

); initialize Mutexor directly with the #define DEFINE_MUTEX (LOCK) can be;#define__mutex_initializer (lockname) \{. Count= Atomic_init (1),. Wait_lock=__spin_lock_unlocked (Lockname.wait_lock),. Wait_list=list_head_init (lockname.wait_list) __debug_mutex_initializer (lockname) __dep_map_mutex_initializer (lo Ckname)}#defineDefine_mutex (Mutexname)structMutex Mutexname =__mutex_initializer (mutexname)extern void__mutex_init (structMutex *Lock,Const Char*name,structLock_class_key *key);Third: The

Driver Design: Differences between Linux drivers and bootloader drivers: The interface with the application layer should be considered; Consider multiple users; Consider other protocols; The role of the device driver: Read data and write data;Initialize devices, read and write devices, allocate device data to applications, and allocate application data to device

mainly differentiated by platform. For example, you can test Linux drivers directly using Ubuntu Linux. There are many drivers that can be installed directly on Android, Linux and other embedded systems as long as they are compiled with the corresponding Linux kernel. Of course, you can also test

encoding. In fact, fimc provides the clock required for camera operation. 2. driving development ideas Because the driver is a bridge between hardware and software, we need to understand the two aspects of camera driver development: first, the hardware interface of the camera, that is, how it is connected to the chip,

In the first half of this year, I transplanted a Linux driver to a common vimicro camera on the market to an Embedded Development Board. The development environment is: OS: linux2.6.9 Compile: Cross 3.3.2 CPU: Intel PXA270 Camera type: vimicro zc301p + hv7131r The driver sou

Embedded Linux Driver Development processIn embedded systems, the operating system is driven by a variety of drivers to control hardware devices. A device driver is an interface between an operating system kernel and a hardware device that shields the application of hardware details so that, in the application's view,

You need to know the necessary knowledge when learning Linux. Here we will introduce the knowledge of Linux, so that you can learn how to use Linux. This article describes some necessary steps for Linux driver development and lear

The popularity of Microsoft Windows 7 won't squeeze out Linux, Which is unquestionable. If you are a Linux user, you want to learn more. If you encounter Linux driver development problems, here we will introduce the necessary steps for L