几种图像格式之间的转换

锁屏软件 需要输入密码 密码见源代码内 -Lock screen software requires a password in your password, see the source code

LINUX内核2.4.20-2.6.18升级用，用了这个很容易升级的-LINUX kernel 2.4.20-2.6.18 upgrade with the upgrade very easy

在linux下把串口映射成TCP/IP端口- Maps under linux the string mouth the TCP/IP port

用系统调用signal()让父进程捕捉键盘上来的中断信号（按Ctrl-C键）；当捕捉到中断信号后，父进程用系统调用kill()向两个子进程发出信号，子进程捕捉到信号后分别输出下列信息后终止： 　Child Process 1 is Killed by Parent! 　Child Process 2 is Killed by Parent! 父进程等待两个子进程终止后，输出如下的信息后终止： Parent Process is Killed!-with system call signal () so that the process of capturing the father onto the keyboard interrupt signal (Ctrl-C bond); When the interrupt signal capture, the father of the process of using system calls kill () to process two signals son, the child process to capture the signal output respectively after the termination of the following information : Process is a Child Killed by Parent! Process 2 Child is Killed by Parent! the process of waiting for the father of two-after the termination process, the following information output after termination : Parent Process is Killed!

Java 12345678901234567

pxa270下利用mmap函数实现LED控制的函数，直接在用户层操作具体的IO口来控制LED，推荐！-pxa270 next LED control function implementation using mmap functions operate directly on the user level of specific IO port to control the LED, recommended!

界面库- Contact surface storehouse

非常好的一个ARM BOOTLOADER ,由于本人粗略的看了一些，难免有错。-Very good ARM BOOTLOADER, rough, since I read some, inevitable mistake.

jtager调试技术-jtager Debugging

增强Linux 安全的几个基本步骤-enhance Linux security a few basic steps