串口程序，一个很好的Linux、Unix的串行、并行的源代码

linux 下的sgip 协议实现, 能够从server 接受短信内容, 并且能够发送短信给手机用户-sgip under the agreements achieved, can accept messages from the server, and can send text messages to mobile phone users

QT安全系统，结合于QT，能实现SSL、TLS等高端加密协议-QT security system, combined with the in QT, to achieve SSL, TLS encryption, such as high-end agreement

Linux下C编程之文件系统编程，需要用到的可以下载-C Programming under Linux

linux下的ipv6防火墙过滤函数源代码-the ipv6 firewall filtering function source code

Linux 命令全集－－本手册共收录了366个命令，注释详尽是你学习linux的好帮手！-Linux command Collection- This manual contains a total of 366 commands, comments in detail you learn linux is a good helper!

LINUX下，蓝牙协议栈 包括SDP HCI 等完整的代码-LINUX, the Bluetooth protocol stack including the SDP HCI, such as a complete code

UNIX下字体研究-UNIX fonts under study

linux的文件系统的ls命令，包括加入功能-a等选项，完善的ls命令-linux file system of the ls command, including adding features such as option-a perfect ls command

PAX270 linux键盘驱动，以中断方式驱动矩阵键盘-PAX270 driver of keyboard

linux 下的人脸识别代码，编译的时候需要配置好IDE-face detection