这是一个Linux下的V4L2的官方文档，主要用于Linux下的多媒体编程。比较有用的！-This is a Linux under V4L2 official documents, mainly used for multimedia programming under Linux. Comparison useful!

v4l2驱动的详解 ,是入门的好材料,比那个API的那个要简单明了些-Detailed v4l2-driven is a good entry materials, than the API that should be more simple