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-rw-r--r--Documentation/ABI/testing/sysfs-bus-iio-cros-ec10
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diff --git a/Documentation/ABI/testing/sysfs-bus-iio-cros-ec b/Documentation/ABI/testing/sysfs-bus-iio-cros-ec
index 297b9720f024..0e95c2ca105c 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-cros-ec
+++ b/Documentation/ABI/testing/sysfs-bus-iio-cros-ec
@@ -16,3 +16,13 @@ Description:
the motion sensor is placed. For example, in a laptop a motion
sensor can be located on the base or on the lid. Current valid
values are 'base' and 'lid'.
+
+What: /sys/bus/iio/devices/iio:deviceX/id
+Date: Septembre 2017
+KernelVersion: 4.14
+Contact: linux-iio@vger.kernel.org
+Description:
+ This attribute is exposed by the CrOS EC legacy accelerometer
+ driver and represents the sensor ID as exposed by the EC. This
+ ID is used by the Android sensor service hardware abstraction
+ layer (sensor HAL) through the Android container on ChromeOS.