Documentation/iio/adis16480.rst

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.. SPDX-License-Identifier: GPL-2.0

================
ADIS16480 driver
================

This driver supports Analog Device's IMUs on SPI bus.

1. Supported devices
====================

* `ADIS16375 <https://www.analog.com/ADIS16375>`_
* `ADIS16480 <https://www.analog.com/ADIS16480>`_
* `ADIS16485 <https://www.analog.com/ADIS16485>`_
* `ADIS16486 <https://www.analog.com/ADIS16486>`_
* `ADIS16487 <https://www.analog.com/ADIS16487>`_
* `ADIS16488 <https://www.analog.com/ADIS16488>`_
* `ADIS16489 <https://www.analog.com/ADIS16489>`_
* `ADIS16490 <https://www.analog.com/ADIS16490>`_
* `ADIS16495 <https://www.analog.com/ADIS16495>`_
* `ADIS16497 <https://www.analog.com/ADIS16497>`_
* `ADIS16545 <https://www.analog.com/ADIS16545>`_
* `ADIS16547 <https://www.analog.com/ADIS16547>`_

Each supported device is a complete inertial system that includes a triaxial
gyroscope and a triaxial accelerometer. Each inertial sensor in device combines
with signal conditioning that optimizes dynamic performance. The factory
calibration characterizes each sensor for sensitivity, bias, and alignment. As
a result, each sensor has its own dynamic compensation formulas that provide
accurate sensor measurements.

2. Device attributes
====================

Accelerometer, gyroscope measurements are always provided. Furthermore, the
driver offers the capability to retrieve the delta angle and the delta velocity
measurements computed by the device.

The delta angle measurements represent a calculation of angular displacement
between each sample update, while the delta velocity measurements represent a
calculation of linear velocity change between each sample update.

Finally, temperature data are provided which show a coarse measurement of
the temperature inside of the IMU device. This data is most useful for
monitoring relative changes in the thermal environment.

ADIS16480 and ADIS16488 also provide access to barometric pressure data and
triaxial magnetometer measurements.

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 adis16480 related device files, found in the
specific device folder path ``/sys/bus/iio/devices/iio:deviceX``.

**Available only for ADIS16480 and ADIS16488:**

+------------------------------------------+---------------------------------------------------------+
| 3-Axis Magnetometer related device files | Description                                             |
+------------------------------------------+---------------------------------------------------------+
| in_magn_scale                            | Scale for the magnetometer channels.                    |
+------------------------------------------+---------------------------------------------------------+
| in_magn_x_calibbias                      | Calibration offset for the X-axis magnetometer channel. |
+------------------------------------------+---------------------------------------------------------+
| in_magn_x_filter_low_pass_3db_frequency  | Bandwidth for the X-axis magnetometer channel.          |
+------------------------------------------+---------------------------------------------------------+
| in_magn_x_raw                            | Raw X-axis magnetometer channel value.                  |

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