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# Copyright 2021 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
description: ALS driver data
compatible: "cros-ec,accelgyro-als-drv-data"
child-binding:
description: ALS calibration data
properties:
scale:
type: int
required: true
description: |
Scale, uscale, and offset are used to correct the raw 16 bit ALS data
and then to convert it to 32 bit using the following equations
raw_value += offset;\n
adjusted_value = raw_value * scale + raw_value * uscale / 10000;
uscale:
type: int
required: true
description: uscale
offset:
type: int
required: true
description: offset
#
# examples:
# als-drv-data {
# compatible = "cros-ec,accelgyro-als-drv-data";
# als-cal {
# scale = <1>;
# uscale = <0>;
# offset = <0>;
# als-channel-scale {
# compatible = "cros-ec,accelgyro-als-channel-scale";
# k-channel-scale = <1>;
# cover-scale = <1>;
# };
# };
# };
#
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