Page Comparison

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1. The camera module registers as a video device after the system boots up.

2. Video capture by V4L2-ctl tool.

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First, it is necessary to confirm that the camera module has been properly initialized and the image capture is successful. This part refer to the camera module documentation. For example: Using Video Camera OV5640 on SP7350 Platforms - C3V Documentation - Confluence

NTP service working is preferred.

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[Unit]
Description=v4l2 camera device init and capture auto test service

[Service]
StandardOutput=journal+console
Type=forking
ExecStart=/etc/init.d/v4l2_dev_test.sh
#StandardOutput=tty # console output
#StandardError=tty # console output
StandardOutput=append:/var/v4l2_dev_test_standard_output.log  
StandardError=append:/var/v4l2_dev_test_standard_error.log  

[Install]
WantedBy=multi-user.target

n In the default configuration, the standard output will be output to /var/v4l2_dev_test_standard_output.log.

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