RK3568 OpenHarmony3.2 Camera介绍（MIPI、USB）

Question

RK3568 OpenHarmony3.2 Camera介绍（MIPI、USB）
其中，关于USB Camera的介绍可以再详细一些吗？
例如：
1.USB camera除了PID，VID需要添加在uvc_driver.c，还有没有其他的需要适配修改的？
2.如果仅有一个usb camera，那mipi部分的dts配置是否有影响，如果有，该如何配置mipi和rkisp相关的节点？
3.如果mipi camera和usb camera同时接上，打开camera的应用，系统是如何选择其中的一个camera为优先的呢？
4. 如果单独使用一个usb camera，有发现start时候提示find V4L2 devname fail，是为什么，这里cameraID.c_str()是rkisp_v5
07-20 10:28:30.212 2154 2218 I C02500/camera_service_test: StartStream() start stream [id:2] begin
07-20 10:28:30.212 2154 2218 I C02500/camera_service_test: Start() Start
07-20 10:28:30.212 2154 2218 E C02500/camera_service_test: start() error:find V4L2 devname fail
07-20 10:28:30.212 2154 2218 E C02500/camera_service_test: GetCurrentFd() error: GetCurrentFd no camera fd
07-20 10:28:30.212 2154 2218 E C02500/camera_service_test: ConfigSys() ConfigSys: GetCurrentFd error
07-20 10:28:30.212 2154 2218 E C02500/camera_service_test: GetCurrentFd() error: GetCurrentFd no camera fd
07-20 10:28:30.212 2154 2218 E C02500/camera_service_test: ReqBuffers() error: ReqBuffers: GetCurrentFd error
07-20 10:28:30.212 2154 2218 I C02500/camera_service_test: SetNodeCallBack() SensorController SetNodeCallBack entry
07-20 10:28:30.212 2154 2218 E C02500/camera_service_test: SetCallback() SetCallback myBuffers_ is NULL
07-20 10:28:30.212 2154 2218 I C02500/camera_service_test: StartCollectBuffers() SourceNode::PortHandler::StartCollectBuffers
07-20 10:28:30.213 2154 2218 I C02500/camera_service_test: Start() ForkNode::Start streamId = 2
07-20 10:28:30.213 2154 2218 I C02500/camera_service_test: Start() fork buffer get buffer streamId = 1
07-20 10:28:30.213 2154 2218 I C02500/camera_service_test: Start() RKCodecNode::Start streamId = 2
07-20 10:28:30.213 2154 2218 I C02500/camera_service_test: StartStream() start stream [id:2] end