Request for debian linux

We were experiencing difficulties with the recognition of the webcam on the SAMSUNG laptop on debian linux O/S.
And the webcam is currently recognized at the kernel driver level, but we require detailed debugging logs to analyze the cause of the webcam not working.
So, we kindly request information on how to configure the CamHAL library to output LV1 debug messages, as demonstrated in the sample reference below.

Reference (https://github.com/intel/icamerasrc/issues/23). When checking the contents of the URL, we found detailed debug message output from the CamHAL library.
[10-30 10:41:06.613] CamHAL[LV1] ENTER-int icamera::camera_device_open(int)
[10-30 10:41:06.613] CamHAL[LV1] @deviceOpen
[10-30 10:41:06.613] CamHAL[LV1] @CameraDevice
[10-30 10:41:06.613] CamHAL[LV1] @V4l2DeviceFactory
[10-30 10:41:06.613] CamHAL[LV1] @BufferProducer BufferProducer 0x55d1dbab52d0 created mMemType: 1
[10-30 10:41:06.613] CamHAL[LV1] CaptureUnit
[10-30 10:41:06.613] CamHAL[LV1] CaptureUnit, mFlushFd [8-9]
[10-30 10:41:06.613] CamHAL[LV1] SofSource: SofSource is constructed
[10-30 10:41:06.613] CamHAL[LV1] reset
[10-30 10:41:06.613] CamHAL[LV1] Failed to find devname for cameraId: 2, use default setting instead
[10-30 10:41:06.613] CamHAL[LV1] createSensorCtrl create a dummy sensor ctrl for camera id:2
[10-30 10:41:06.613] CamHAL[LV1] @SensorHwCtrl
[10-30 10:41:06.613] CamHAL[LV1] @createI3AControl
[10-30 10:41:06.613] CamHAL[LV1] AiqEngine
[10-30 10:41:06.615] CamHAL[LV1] @registerListener eventType: 5, listener: 0x55d1dba3bd10
[10-30 10:41:06.615] CamHAL[LV1] EXIT-int icamera::camera_device_open(int) 0:00:00.032185113 117883 0x55d1dbc482d0 ERROR icamerasrc gstcamerasrc.cpp:2845:gst_camerasrc_start: CameraId=2 failed to open libcamhal device.
[10-30 10:41:06.615] CamHAL[LV1] ENTER-int icamera::camera_hal_deinit()
[10-30 10:41:06.615] CamHAL[LV1] @deinit
[10-30 10:41:06.615] CamHAL[LV1] @releaseInstance
[10-30 10:41:06.615] CamHAL[LV1] @~PlatformData
[10-30 10:41:06.618] CamHAL[LV1] @~AiqInitData
[10-30 10:41:06.618] CamHAL[LV1] ~AiqData, aiqd file name /usr/share/defaults/etc/camera/hm11b1.aiqb
[10-30 10:41:06.618] CamHAL[LV1] @~AiqInitData
[10-30 10:41:06.618] CamHAL[LV1] ~AiqData, aiqd file name /usr/share/defaults/etc/camera/ov01a1s.aiqb
[10-30 10:41:06.618] CamHAL[LV1] @~AiqInitData
[10-30 10:41:06.618] CamHAL[LV1] ~AiqData, aiqd file name /usr/share/defaults/etc/camera/hm11b1.aiqb
[10-30 10:41:06.618] CamHAL[LV1] EXIT-int icamera::camera_hal_deinit() 0:00:00.034912553 117883 0x55d1dbc482d0 WARN CamBaseSrc gstcambasesrc.cpp:4192:gst_cam_base_src_activate_push: Failed to start in push mode 0:00:00.034920413 117883 0x55d1dbc482d0 WARN GST_PADS gstpad.c:1141:gst_pad_set_active:camerasrc0:src Failed to activate pad