linux指令集,快速查找指令，使用很方便。

touch screen driver.

s3c2410的触摸屏控制器驱动，调试过，正常运行。-S3C2410-driven touch-screen controller, debug, and normal operation.

Linux 设备驱动 Edition 3.chm-Linux Device Driver Edition 3.chm

linux下字符设备的驱动程序.2.4 内核通过-character device driver through 1.2.4 kernel

pthreads jacobi iteration

esc/pos指令集的打印机的usb驱动，-esc/pos指令集的打印机的usb驱动

在Linux系统的/etc目录下有这样一个文件passwd，该文件里包含系统中所有用户信息的记录，记录里包含每个用户的如下信息：用户名、密码、用户ID、组ID、用户全名、用户主目录和用户登录所用的shell。请设计一个脚本（shell）程序能实现增加、删除、查找和显示特定用户信息的功能。你们可以通过创建一些UNIX/LINUX shell 脚本文件来满足以上需求。-In the Linux system,/etc directory there is such a file passwd, this file contains all the user information system, records, record where each user that contains the following information: user name, password, user ID, group ID, user" s full name , the user" s home directory and the user logged in with the shell. Please design a script (shell) program enables to add, delete, search and display information on a specific user function. You can by creating a number of UNIX/LINUX shell script file to meet the above requirements.

带宽测量算法spruce源代码，能够实现对网络带宽的测量-Bandwidth measurement algorithm spruce source code, be able to achieve the measurement of network bandwidth

使用消息队列的例子 -The example for using message q

at91rm9200 第一极boot源代码-AT91RM9200 first polar boot source code