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for additional ways besides system property Bug: 326227403 Test: atest android.hardware.biometrics.common.ConfigTest Change-Id: Id0aa4961cc732c23f5da140eca81470316834b70
Biometric HALs
Overview:
The interfaces within the biometrics.* HAL tree are used by the Android Biometric Services (e.g. FingerprintService, FaceService) to discover and operate biometric sensors on the device.
More details and versioning information can be found within each particular HAL.
More complete information about the Android Biometric HALs and subsystem can be found at source.android.com.