Linux下usb设备驱动开发5部曲

#osrusbfx2 Based on "OSRFX2 Learning Kit" + "CY001 learning Kit", added more with my idea to demo how-to learning writing host drivers for USB devices on Windows & Linux. # 为何要写这个东东 / Why write this 诸位学习主机（host）侧USB驱动开发的同仁，想必在学习过程中一定也有鄙人相同的经历感受。那就是手头如果有一块USB的开发学习板，那效率一定会高很多。所以在下当时也是出于此目的在网上买了张佩大侠提供的配合《竹林蹊径：深入浅出windows驱动开发》的学习板CY001，以作学习的用途。 Hi, every buddy, are you learning write host side USB drivers? If yes, I hope you would feel great if you have one USB learning-board at hand the same time. I bought one (CY001 from ZhangPei) and being enjoy it very much. 我对驱动的学习是从Wiindows平台开始的，毕竟PC上Windows仍是霸主。在学习USB驱动开发时鄙人有一个重要的体会是：微软WDK中提供的例子是最值得仔细研习的。USB驱动相关的例子中尤以osrusbfx2这个例子最为经典。osrusbfx2是配合著名的OSRFX2学习板精心编写的一套例子。非常适合Windows上学习USB驱动开发的朋友入门学习用。不光是入门用，平时也会常常参考。据说微软WDK开发小组的程序员也要经常用OSRFX2的板子来做测试呢（具体在哪里看到的忘记了），可见其重要性。 I began my career on USB driver writing on Windows, and I think many of people the same due to Windows is the most popular on PC and the USB samples from MS-WDK are the most valuable for us freshman, especially the classical osrusbfx2 sample. osrusbfx2 is a USB driver sample provided together with the famous OSRFX2 learning board. I ever heard MS WDK team also use this board to verify and test the WDK self (not very clear where I saw this but it should be true :)). So do you feel the importance of this board and the osrusbfx2 sample? 接下来，众所周知的原因，对于中国大陆的程序员来说OSR的那块板子是在是贵了点。所以我手上有了CY001之后就有了个想法：能不能将CY001改造一下，模拟成OSRFX2呢。它们两的物理基础实际上相差并不大啊。 Next, as we all know, the OSRFX2 learning board looks a bit expensive to me (I'm from PRC mainland), but I have CY001 and I thought if I can modify CY001 to simulate OSRFX2. Anyway these two boards use the same USB chipset and have some common peripherals. 再接下来就有了这个项目。所以如果你手头有CY001，又想学习WDK的OSRUSBFX2例子，那不妨试试阅读以下我写的这个玩意。其实在设备（Device）侧，如果你没有CY001，但只要有任何一块基于Cypress的FX2系列USB芯片的学习开发板（大陆做这种开发板的貌似不少，淘宝上可以搜搜），同时你对修改设备的固件也有兴趣，都可以按照相同的思路尝试以下。我的这个就当是抛砖引玉了吧。 And the next, I made this project. If you have one CY001, or any other USB learning board which is based off Cypress FX2 USB chipset and you have interest in modifying device firmware, you can have a try as me. Hope my work here act as a good reference and be initial step for you. 其实OSRUSBFX2这个例子对在Windows平台以外的系统上学习USB驱动开发也是很有帮助的，以Linux为例，一样的受用。而且在Windows上学好USB驱动开发后再回过头去看Linux上的USB驱动开发，也是大有裨益。毕竟微软人家也是USB协议的主要发起者之一啊。 I also ported osrusbfx2 sample to Linux, if you love Linux more than Windows, check this out. # 目录结构 / Directory + osrfx2fw - CY001(基于Cypress EZ-USB FX2LP)的固件Keil工程源代码。已经过修改模拟OSRFX2学习板 - [README](./osrfx2fw/README.md): 介绍了如何基于CY001模拟OSRFX2。 + windows - Windows版本的源代码和相关文件。已经过修改以适配CY001与实际的OSRFX2学习板的不同。 - drivers - 驱动安装包。目前只提供了x86的版本。 * [README](./windows/drivers/README.md) - drvinst - 驱动安装和卸载程序，演示DIFxAPI和SetupAPI的典型用例。 * [README](./windows/drvinst/README.md) * [(原创)Windows设备和驱动的安装](./windows/drvinst/device-and-driver-installation.md) - osrusbfx2 - WDK的osrusbfx2例子，经过修改适配CY001。 * [README](./windows/osrusbfx2/README.md) * [(原创)学习笔记-Developing Drivers with the Microsoft Windows Driver Foundation](./windows/osrusbfx2/doc/note-DDMWDF.md) * [(原创)Step by Step, 为OSRFX2创建一个KMDF驱动程序](./windows/osrusbfx2/doc/Building-KMDF-Driver-for-OSRFX2.md): 一个基于osrusbfx2例子的小教程。 + linux - Linux版本的源代码和相关文件。 - doc - 文档 * [(原创)Linux USB 设备驱动](./linux/doc/ludd.ppt):小教程-如何开发一个主机侧的内核USB设备驱动 * [(原创)学习笔记-Linux Device Drivers, 3rd Edition](./linux/doc/learning-ldd3/notes.md) - driver - 最终的驱动(TBD) - exe - osrfx2的测试应用程序 - include - 公共头文件 - scripts - 脚本形式的测试程序(python/shell) - step1 ~ step5 - Step by Step的示例代码 - [README](./linux/README.md) 更详细的说明可以参考各分目录下的说明文件。 # 联系方式 / Contact **Email: unicorn_wang@outlook.com** **Blog: http://unicornx.gitcafe.io/** # 下载和访问 / Download 该项目的所有文档和代码都上传到GitHub，大家如果熟悉GitHub可以上Github观赏并联机提出宝贵意见。地址是: https://github.com/unicornx/osrusbfx2 下载该项目的方法 / Download Method： mkdir yourworkspacefolder cd yourworkspacefolder git clone https://github.com/unicornx/osrusbfx2.git 该项目另一个发布的平台（another publish window）在“图灵社区” - "osrusbfx2 - Step by Step USB驱动开发" http://www.ituring.com.cn/minibook/726 enjoy it! :)