不错的JPEG学习资料和代码，适合嵌入式系统开发的不错资料，值得收藏。-JPEG learning materials and good code, good for embedded systems development information, worthy of collection.

1、开发环境linux2.6.362、交叉编译器gcc 4.2.33、本代码为s3c64xx GPIO驱动，代码中有完整的Makefile、Kconfig文件，和GPIO测试代码，可以和内核一起编译，方便移植。本代码已在飞凌嵌入式板子OK6410上测试通过。-(1) devolop enviroment base on linux 2.6.36 (2) cross compiler is gcc 4.2.3(3) this code is for s3c64xx GPIO driver, and

检测/监控嵌入式LINUX有没有插入USB设备，此代码主要是在应用程序启动后不能通过socket来获得消息的情况下使用。-Detection/monitoring of embedded LINUX there is no USB device, this code is primarily in the application starts, can not get the message through the socket to the case of use.