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目录 [隐藏]I. IntroductionII. Structure of a driverIII. Structure of the frameworkstruct v4l2_devicestruct v4l2_subdevstruct video_devicestruct v4l2_fhV4L2 events Overview of the V4L2 driver frameworkThis text documents the various structures provided by the V4L2 framework and their relations...

目录 [隐藏]I. 术语解释II. 启动流程III. 驱动框架kernel spaceuserspace v4l2 drvier framework code reviewI. 术语解释术语解释vfevideo front end driverccicamera control interfacecsicamera serial interfaceII. 启动流程$dmesg -T |egrep -i 'vfe|ov5640|v4l|csi|cci'如上启动顺序csi、cci、mipi 等外设初始化；vfe控制 v4l2 启动；vfe在初始化 v4l2-device...