sang981113

I faced this problem too. It shows preview right when the app restart.

2022-08-25 17:10:09.674 2252-2252/com.jiangdg.ausbc I/AUSBC: Thread: main 2022-08-25 17:10:09.674 2252-2252/com.jiangdg.ausbc I/AUSBC: ++++++++Info->USBMonitor###UsbControlBlock#close: 2022-08-25 17:10:09.674 2252-2252/com.jiangdg.ausbc D/UsbDeviceConnectionJNI: close 2022-08-25 17:10:09.675 2252-2252/com.jiangdg.ausbc I/AUSBC: Thread: main 2022-08-25 17:10:09.677 2252-2252/com.jiangdg.ausbc I/AUSBC: ++++++++Info->CameraUvcStrategy###onDisconnect device = UsbDevice[mName=/dev/bus/usb/001/002,mVendorId=46694,mProductId=61447,mClass=239,mSubclass=2,mProtocol=1,mManufacturerName=null,mProductName=HD...

when i deleted problem codes that contains usb device's serial nums and etc, app didn't crash but camera preview was not shown.

I think some bugs on UsbDevice.java(sdk). That library doesn't give correct result. It just call getSerialNumber method by device but sdk invoke error.

yes you could do that. but do you have the datasets to train the model?