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The new fields provide additional information to the HAL about the touch events originating from the framework. Bug: 205915651 Test: m android.hardware.biometrics.common-update-api Test: m android.hardware.biometrics.fingerprint-update-api Test: lunch cf_x86_phone-userdebug && m Change-Id: I987e26ac03e3268eea30feb9bbddffe6ca8d0035
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.