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Add IBiometricsFace#userActivity

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Fixes: 116821097

Test: builds
Change-Id: I88363e186a41ce65665122606b357c7d31d8c18d
This commit is contained in:
Kevin Chyn
2018-09-28 16:37:45 -07:00
parent c9816c691f
commit ba9ec8795a
1 changed files with 17 additions and 1 deletions
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18
biometrics/face/1.0/IBiometricsFace.hal
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@@ -225,7 +225,10 @@ interface IBiometricsFace {
* Authenticates the active user.
*
* An optional operationId can be specified as a token from the transaction
* being authorized.
* being authorized. The hardware may enter a standby state during
* authentication, where the device is idle to conserve power while
* authenticating, e.g. after 3 seconds without finding a face. See
* IBiometricsFace#userActivity() for more info.
*
* @param operationId A non-zero operation id associated with a crypto
* object instance; or 0 if not being used.
@@ -233,4 +236,17 @@ interface IBiometricsFace {
*/
@callflow(next={"cancel", "generateChallenge", "remove"})
authenticate(uint64_t operationId) generates (Status status);
/**
* A hint to the HAL to continue looking for faces.
*
* This method should only be used when the HAL is in the authenticating
* or standby state. Using this method when the HAL is not in one of the
* mentioned states must return OPERATION_NOT_SUPPORTED. Calling this
* method while the HAL is already authenticating may extend the duration
* where it's looking for a face.
*
* @return status The status of this method call.
*/
userActivity() generates (Status status);
};