v4l.c摄像头采集驱动程序，包括各种函数，以及yuv转为bmp文件的函数-v4l.c camera capture driver, including a variety of functions, as well as the yuv into the function of the bmp file

使用framebuffer编程，使得能够较好的显示bmp图像，对代码的适当优化使显示动图成为可能-to show a picture via the framebuffer,the code is well designed that show several picture in a short time is possible

BMP转YUV，支持多种格式转换。输出为数组。-RGB to YUV, supports a variety of formats.