This tutorial will describe how to create a simple device driver, dynamically load and unload it, and finally talk to it from user mode.
标签： dynamically tutorial describe create
上传时间： 2014-01-09
上传用户：cxl274287265
【下载说明】 这里提供给大家的是《Embedded Linux: Hardware, Software, and Interfacing》（嵌入式 Linux---硬件、软件与接口）一书的英文原版CHM格式下载。 【作者简介】 Craig Hollabaugh has been fascinated by electronics since he bought an AM radio in elementary school. He was first exposed to Unix during a cross-country talk session in 1985. Later, he administered networked Sun and DEC workstations while pursuing a doctoral degree in electrical engineering at Georgia Institute of Technology. 【内容提要】 本书通过一个冬季旅游胜地自动化管理项目实例，从软件、硬件和接口的观点介绍嵌入式Linux。引入项目需求后，作者讲述了开发环境的建立，接着用一系列软硬件接口实例展示了如何使用异步串行通信、PC并口、USB、内存I/O、同步串行通信以及中断，等等。最后介绍了将前面所有的工作有机地组织在一起的系统集成过程。本书以实际应用为导向，书中整个项目的实施过程和软硬件接口实例都具实践指导意义。
标签： Linux Interfacing Embedded Hardware
上传时间： 2014-01-22
上传用户：shus521
Programming the USB2DMX by Jan Menzel 3rd January 2002 Abstract This document describes how the USB2DMX DMX512 interface for the USB-port by Lighting- Solutions1 has to be programmed. It includes all information the software engineer has to supply to the operating systems USB-stack to talk to the USB2DMX
标签： Programming the describes Abstract
上传时间： 2016-10-31
上传用户：SimonQQ
登陆用户名/密码乱输入即可，因为功能不在这儿。 登陆界面全是图片，只是为了演示更亲切一点。 主要对话AI内容在talk.dat 里面，他是程序的数据库。 本程序核心代码为网友sc寻制作的，本人自己把外设界面加上而成的，可以给VB学习者以借鉴。
上传时间： 2017-01-07
上传用户：lijianyu172
linux下常用的网络工具的代码，如tftp,talk,rlogin,telnet等
上传时间： 2014-01-11
上传用户：Zxcvbnm
chat room，have both server and client.client can talk publicly or privatly sever can send message to all clients or choose one.
上传时间： 2017-05-03
上传用户：叶山豪
A user-space device driver can do many of the things that kernel drivers can t, such as perform a long-running computation, block while waiting for an event, or read files from the file system. Unlike kernel drivers, a user-space device driver can use other device drivers--that is, access the network, talk to a serial port, get interactive input from the user, pop up GUI windows, or read from disks. User-space drivers implemented using FUSD can be much easier to debug it is impossible for them to crash the machine, are easily traceable using tools such as gdb, and can be killed and restarted without rebooting even if they become corrupted. FUSD drivers don t have to be in C--Perl, Python, or any other language that knows how to read from and write to a file descriptor can work with FUSD. User-space drivers can be swapped out, whereas kernel drivers lock physical memory.
标签： user-space can drivers perform
上传时间： 2014-01-01
上传用户：saharawalker
Today wireless is becoming the leader in communication choices among users. It is not anymore a backup solution for nomadic travellers but really a newmoodnaturallyusedeverywhereevenwhenthewiredcommunicationsare possible. Many technologies evolve then continuously, changing the telecom- munication world. We talk about wireless local area networks (WLANs), wire- less personal area networks (WPANs), wireless metropolitan area networks (WMANs), wireless wide area networks (WWANs), mobile ad hoc networks (MANETs), wireless sensor networks (WSNs) and mesh networks. Since we can find today a multitude of wireless technologies we decided to group a numberofcomplementarytechnologiesintoonedocumenttomakeiteasierfor areadertounderstandsomeofthetechnicaldetailsofeachmedia.
标签： TM Bluetooth Zigbee Wi-Fi WiMax and
上传时间： 2020-06-01
上传用户：shancjb
Wirelesscommunications,especiallyinitsmobileform,hasbroughtusthefreedomofmobility andhaschangedthelifestylesofmodernpeople.Waitingatafixedlocationtoreceiveormakea phone call, or sitting in front of a personal computer to send an e-mail or download a video program, has become an old story. Nowadays it is commonplace for people to talk over a cell phonewhilewalkingonthestreet,ortodownloadandwatchamoviewhiletravelingonatrain. Thisisthebenefitmadeavailabletousbythesuccessfulevolutionofwirelesscommunications over three generations, with the fourth generation being under way.
标签： Communications Management Wireless Resource
上传时间： 2020-06-01
上传用户：shancjb
Micro-Electro-Mechanical Systems (MEMS) are miniature systems composed ofintegratedelectricalandmechanicalpartstosenseand/orcontrolthingsonaµmscale. The concept of MEMS is attributed to Richard Feynman’s famous talk on December 29th, 1959 [2,3]. Dr. Feynman foresaw many aspects of future MEMS development with his insight in microphysics. In particular, material properties in the µm scale are differentfrombulkpropertiesandthescalingdownofintegratedcircuits(IC)fabrication technology has been a major driving force of MEMS development.
标签： Performance High MEMS RF
上传时间： 2020-06-06
上传用户：shancjb
