1What: /sys/bus/iio/devices/iio:deviceX/calibrate 2Date: July 2015 3KernelVersion: 4.7 4Contact: linux-iio@vger.kernel.org 5Description: 6 Writing '1' either perform a FOC (Fast Online Calibration) or 7 enter calibration mode. 8 Writing '0` exits calibration mode. It is a NOP for FOC enabled 9 sensors. 10 The corresponding calibration offsets can be read from `*_calibbias` 11 entries. 12 13What: /sys/bus/iio/devices/iio:deviceX/id 14Date: September 2017 15KernelVersion: 4.14 16Contact: linux-iio@vger.kernel.org 17Description: 18 This attribute is exposed by the CrOS EC sensors driver and 19 represents the sensor ID as exposed by the EC. This ID is used 20 by the Android sensor service hardware abstraction layer (sensor 21 HAL) through the Android container on ChromeOS. 22