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https://issues.apache.org/jira/browse/MYNEWT-881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16373454#comment-16373454
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ASF subversion and git services commented on MYNEWT-881:
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Commit 4e7537bbecf15d0b47adaf52807218ceb12dbedb in mynewt-core's branch 
refs/heads/master from [~vrahane]
[ https://gitbox.apache.org/repos/asf?p=mynewt-core.git;h=4e7537b ]

Merge pull request #718 from vrahane/lis2dh12_thresholds_fix

MYNEWT-881: SensorAPI: Add sensor_clear_high/low_thresh() API and LIS2DH12 set 
threshold cb fix

> SensorAPI: Add sensor_unset_thresh() API and LIS2DH12 set threshold cb fix
> --------------------------------------------------------------------------
>
>                 Key: MYNEWT-881
>                 URL: https://issues.apache.org/jira/browse/MYNEWT-881
>             Project: Mynewt
>          Issue Type: Improvement
>      Security Level: Public(Viewable by anyone) 
>          Components: Drivers, Sensor Framework
>    Affects Versions: v1_3_0_rel
>         Environment: ruuvitag-revb2
>            Reporter: Vipul Rahane
>            Assignee: Vipul Rahane
>            Priority: Major
>              Labels: core
>             Fix For: v1_4_0_rel
>
>
> There are two issues for calling the lis2dh12_sensor_set_trigger_thresh() :
> 1. gpio irq was not being released before doing a re-initialization
>  2. srec was malloced and calling the function multiple times would have 
> malloced additional memory without freeing it.
> Solution:
>  1. Release the gpio irq
>  2. Remove the malloc and add a ptr for the sensor in each type trait so that 
> a sensor read could be performed in the irq handler.
> Also, sensor_unset_thresh() API was added to unset thresholds 
> triggers/interrupts.



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