sensors: Add optional close_data_source call
Change-Id: I591afea509ee055211a4beeaa83b12692e251f67
Signed-off-by: Mike Lockwood <lockwood@android.com>
diff --git a/include/hardware/sensors.h b/include/hardware/sensors.h
index 3be07b3..f59f938 100644
--- a/include/hardware/sensors.h
+++ b/include/hardware/sensors.h
@@ -293,7 +293,16 @@
* @return a native_handle_t if successful, NULL on error
*/
native_handle_t* (*open_data_source)(struct sensors_control_device_t *dev);
-
+
+ /**
+ * Releases any resources that were created by open_data_source.
+ * This call is optional and can be NULL if not implemented
+ * by the sensor HAL.
+ *
+ * @return 0 if successful, < 0 on error
+ */
+ int (*close_data_source)(struct sensors_control_device_t *dev);
+
/** Activate/deactivate one sensor.
*
* @param handle is the handle of the sensor to change.