unix环境下write函数同步和异步读写效率的比较

这是基于hfa3841、hfa3842的无线网卡linux驱动程序源代码-hfa3841, hfa3842 wireless LAN linux driver source code

《Linux Kernel核心中文手册 》――硬件基础知识、软件基础、内存管理、进程、进程间通讯机制、PCI- Linux Kernel core Chinese manual - basic knowledge of hardware, software infrastructure, memory management, process, inter-process communication mechanism, PCI

可扩展消息出席协议（XMPP）的完全讲解，文档附带例子，通俗易懂。-Extensible Messaging and present Protocol (XMPP) fully explain, the document with examples, easy to understand.

此代码是ARM嵌入式系统下的一个VFD的驱动程序-This code is the ARM embedded system under a VFD driver

这是为微型GUI编写的2D位图处理代码 贴图(选区贴图,半透明贴图,alpha贴图) 直线(直接画线,异或画线,透明画线) 裁剪(凸四边形裁剪,线段裁剪,覆盖分割) 变换(平移,缩放,错切,旋转,对称) 所有代码都经过彻底调试和初步优化了 采用标准C语言编写,linux-gcc编译调试 -This is a mini-GUI prepared 2D bitmap handle code mapping (constituency mapping, semi-transparent textures, alpha maps) a straight line (direct painting lines XOR painting line, transparent painting line) cutting (convex quadrilateral cutting, line cutting, covering partition) transform (translation, scaling, shear, rotation, symmetry) all of the code are examined thoroughly debug and optimize the initial standard C language, linux-gcc compiler debugging

minicom操作指南，对于学习嵌入式尤其是linux的人来说是很有用的-minicom operation guide for learning embedded Linux in particular who is a very useful

小xml开发软件TinyXml是一个简单的、小的、易于使用的C xml解析器

Cadence SPW 4.8.2下3780点FFT的源码，运用混合基算法，对数字电视地面广播有用，对其它基于FFT的系统有参考价值。-Cadence SPW 4.8.2 under the 3780-point FFT source code, Mixed-use algorithm, the terrestrial digital TV broadcasting useful to the other FFT-based systems reference value.

linux目录架构，linux系统下所有目录详细描述-linux

unicon2,linux下的中文输入法必装的包-unicon2, linux under the Chinese input method packages must be installed