四个继电器输出，基于2.4个驱动程序和测试程序。

44B0平台下开发的程序，MAKEFILE。-44B0 platform developed under the program, MAKEFILE.

Vi/Vim作为linux下最常用的编辑器，是在linux系统下工作的人必不可少的工具，掌握其基本命令就很重要。-Vi/Vim is a one of the most frequent-used editor,and it is a necessary tool for people who work under linux-system,so it is very important to master the basic commands.

linux下蓝牙的驱动程序，方便用户基于此对蓝牙设备进行操作-Bluetooth drivers under linux, user-friendly Bluetooth devices based on this right to operate

picocom 是一款linux下的串口调试工具，很想minicom，比minicom精巧的多，编译好后， 我输入 picocom -b 115200 /dev/ttyS0 就可以调试我的arm板了-picocom A linux is the serial debugging tools, like minicom. minicom sophisticated than many good compiler, I enter picocom- 115200 b/dev/ttyS0 I can debug the arm of the plate

NS与网络模拟 pdf书 及书中完整例子源码-NS and network simulation pdf file and source code pack

UNIX环境高级编程。使用LINUX或者UNIX的朋友不可错过。讲解了很多基础知识，全面。-UNIX high-level programming environment. LINUX or UNIX using friends can not afford to miss. Explain a lot of basic knowledge and comprehensive.

读者―写者问题的读写操作限制(包括读者优先和写者优先)： 1)写―写互斥，即不能有两个写者同时进行写操作。 2)读―写互斥，即不能同时有一个线程在读，而另一个线程在写。 3)读―读允许，即可以有一个或多个读者在读。 -readers-the problem was the restrictions on reading and writing operations (including readers wrote priority and priority) : 1) write-write mutex, and that is not written there were two parallel write. 2) read-write exclusive, and that is not also a thread reading, and writing in another thread. 3) Reading-time permitting, there may be one or more readers in Reading.

VIA EtherSwitch Firmware 的源代码-VIA EtherSwitch Firmware source code

LUFS 是一个混合用户空间文件系统框架，支持不定数量的对用户透明的文件系统（localfs, sshfs, ftpfs, httpfs, socketfs, freenetfs, 和nutellafs)。它可以被看作和VFS（虚拟文件系统转换）完成同样的内核功能：它是一个转换器，分布文件系统调用到支持它的文件系统。然而，LUFS文件系统是在用户空间中实现的。-driver is a mixed user-space file system framework, support for variable amounts of transparent to users of File System (localfs, sshfs, ftpfs, httpfs, socketfs, freenetfs and nutellafs). It can be seen and VFS (virtual file system) completion of the same core functions : it is a converter, called Distributed File System to support its file system. However, the driver file system is the user space to achieve.

本代码是一个linux内核的微代码，对初学linux内核很有参考价值。-This code is a linux kernel microcode for beginner linux kernel valuable.