Change device scan method for v4l privacy driver #679

Job	Run time
pre-commit (check-toml)	1m 8s
pre-commit (check-yaml)	1m 2s
pre-commit (check-merge-conflict)	45m 47s
pre-commit (check-case-conflict)	1m 20s
pre-commit (detect-private-key)	43m 17s
pre-commit (mixed-line-ending)	58s
pre-commit (trailing-whitespace)	43m 16s
pre-commit (cspell)	1m 23s
pre-commit (typos)	44m 15s
pre-commit (cargo-fmt)	58s
pre-commit (cargo-clippy)	2m 11s
pre-commit (cargo-test)	2m 47s
pre-commit (verify_icon_files)	48s
	3h 9m 10s

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