摄像头抓图程序

代码说明：

  ARM的USB视频采集源程序 抽取出来了三个文件：vidcat.c v4l.c v4l.h 搞定了它的编译，生成了一个60k的vidcat可执行文件，拷贝到2410上后工作正常(Video capture source program of ARM USB draw following 3 file: vidcat.c v41.c v41.h to finish its compile and build about 60K vidcat executable file and work after copying on 2410.)