Before opening the log of each module, it is recommended to close the selinux permission first, and make sure that the camera logD has been printed. If there is no print, you can use the following command to open it:
adb shell setenforce 0
adb shell setprop persist.vendor.mtk.camera.log_level 3
adb shell pkill camera*
Then open the log of the corresponding module as follows:
1. Open MTK Camera2 APP log
adb root
adb shell setprop vendor.debug.mtkcam.loglevel 3
2. 开camera device hal3 log
log tag: mtkcam-dev3
adb root
adb shell setprop debug.camera.log.CameraDevice3 2