Documentation/iio/adxl380.rst
Source file repositories/reference/linux-study-clean/Documentation/iio/adxl380.rst
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.. SPDX-License-Identifier: GPL-2.0
===============
ADXL380 driver
===============
This driver supports Analog Device's ADXL380/382 on SPI/I2C bus.
1. Supported devices
====================
* `ADXL380 <https://www.analog.com/ADXL380>`_
* `ADXL382 <https://www.analog.com/ADXL382>`_
The ADXL380/ADXL382 is a low noise density, low power, 3-axis accelerometer with
selectable measurement ranges. The ADXL380 supports the ±4 g, ±8 g, and ±16 g
ranges, and the ADXL382 supports ±15 g, ±30 g, and ±60 g ranges.
2. Device attributes
====================
Accelerometer measurements are always provided.
Temperature data are also provided. This data can be used to monitor the
internal system temperature or to improve the temperature stability of the
device via calibration.
Each IIO device, has a device folder under ``/sys/bus/iio/devices/iio:deviceX``,
where X is the IIO index of the device. Under these folders reside a set of
device files, depending on the characteristics and features of the hardware
device in questions. These files are consistently generalized and documented in
the IIO ABI documentation.
The following tables show the adxl380 related device files, found in the
specific device folder path ``/sys/bus/iio/devices/iio:deviceX``.
+---------------------------------------------------+----------------------------------------------------------+
| 3-Axis Accelerometer related device files | Description |
+---------------------------------------------------+----------------------------------------------------------+
| in_accel_scale | Scale for the accelerometer channels. |
+---------------------------------------------------+----------------------------------------------------------+
| in_accel_filter_high_pass_3db_frequency | Low pass filter bandwidth. |
+---------------------------------------------------+----------------------------------------------------------+
| in_accel_filter_high_pass_3db_frequency_available | Available low pass filter bandwidth configurations. |
+---------------------------------------------------+----------------------------------------------------------+
| in_accel_filter_low_pass_3db_frequency | High pass filter bandwidth. |
+---------------------------------------------------+----------------------------------------------------------+
| in_accel_filter_low_pass_3db_frequency_available | Available high pass filter bandwidth configurations. |
+---------------------------------------------------+----------------------------------------------------------+
| in_accel_x_calibbias | Calibration offset for the X-axis accelerometer channel. |
+---------------------------------------------------+----------------------------------------------------------+
| in_accel_x_raw | Raw X-axis accelerometer channel value. |
+---------------------------------------------------+----------------------------------------------------------+
| in_accel_y_calibbias | y-axis acceleration offset correction |
+---------------------------------------------------+----------------------------------------------------------+
| in_accel_y_raw | Raw Y-axis accelerometer channel value. |
+---------------------------------------------------+----------------------------------------------------------+
| in_accel_z_calibbias | Calibration offset for the Z-axis accelerometer channel. |
+---------------------------------------------------+----------------------------------------------------------+
| in_accel_z_raw | Raw Z-axis accelerometer channel value. |
+---------------------------------------------------+----------------------------------------------------------+
+----------------------------------+--------------------------------------------+
| Temperature sensor related files | Description |
+----------------------------------+--------------------------------------------+
| in_temp_raw | Raw temperature channel value. |
+----------------------------------+--------------------------------------------+
| in_temp_offset | Offset for the temperature sensor channel. |
+----------------------------------+--------------------------------------------+
| in_temp_scale | Scale for the temperature sensor channel. |Annotation
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Implementation Notes
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