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Merge "Sensor: HAL guideline clarification upon activation request"

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Peng Xu 2017-08-29 20:36:09 +00:00 committed by Gerrit Code Review
commit 0b2872c784
1 changed files with 5 additions and 4 deletions
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9
include/hardware/sensors.h
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@ -578,10 +578,11 @@ typedef struct sensors_poll_device_1 {
* sensor_handle is the handle of the sensor to change.
* enabled set to 1 to enable, or 0 to disable the sensor.
*
* After sensor de-activation, existing sensor events that have not
* been picked up by poll() should be abandoned immediately so that
* subsequent activation will not get stale sensor events (events
* that is generated prior to the latter activation).
* Before sensor activation, existing sensor events that have not
* been picked up by poll() should be abandoned so that application
* upon new activation request will not get stale events.
* (events that are generated during latter activation or during
* data injection mode after sensor deactivation)
*
* Return 0 on success, negative errno code otherwise.
*/