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This additional metadata can optionally be used by the HAL to make optimizations when an operation is started. Bug: 246363169 Test: N/A (builds) Change-Id: I493cba04f54d09f976b31a68661a18397af02ce9
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.