Introduction - If you have any usage issues, please Google them yourself
V4L2 greater than V4L changes, and has become the standard interface 2.6, cover the video \ dvb \ FM ..., most drivers have migrated to the V4l2. Better understanding of the application V4L2 start start, and then deep into the core in combination with physical device/interface to the realization of the corresponding drive. This article first on the V4L2 video capture or camera in the application framework.