Documentation/iio/ad4030.rst

Source file repositories/reference/linux-study-clean/Documentation/iio/ad4030.rst

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System: Linux kernel
Corpus path: Documentation/iio/ad4030.rst
Extension: .rst
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Domain: Support Tooling And Documentation
Bucket: Documentation
Inferred role: Support Tooling And Documentation: documentation
Status: atlas-only

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Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

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Annotated Snippet

.. SPDX-License-Identifier: GPL-2.0-only

=============
AD4030 driver
=============

ADC driver for Analog Devices Inc. AD4030 and similar devices. The module name
is ``ad4030``.


Supported devices
=================

The following chips are supported by this driver:

* `AD4030-24 <https://www.analog.com/AD4030-24>`_
* `AD4032-24 <https://www.analog.com/AD4032-24>`_
* `AD4630-16 <https://www.analog.com/AD4630-16>`_
* `AD4630-24 <https://www.analog.com/AD4630-24>`_
* `AD4632-16 <https://www.analog.com/AD4632-16>`_
* `AD4632-24 <https://www.analog.com/AD4632-24>`_

IIO channels
============

Each "hardware" channel as described in the datasheet is split in 2 IIO
channels:

- One channel for the differential data
- One channel for the common byte.

The possible IIO channels depending on the numbers of "hardware" channel are:

+------------------------------------+------------------------------------+
| 1 channel ADC                      | 2 channels ADC                     |
+====================================+====================================+
| - voltage0-voltage1 (differential) | - voltage0-voltage1 (differential) |
| - voltage2 (common-mode)           | - voltage2-voltage3 (differential) |
|                                    | - voltage4 (common-mode)           |
|                                    | - voltage5 (common-mode)           |
+------------------------------------+------------------------------------+

Labels
------

For ease of use, the IIO channels provide a label. For a differential channel,
the label is ``differentialN`` where ``N`` is the "hardware" channel id. For a
common-mode channel, the label is ``common-modeN`` where ``N`` is the
"hardware" channel id.

The possible labels are:

+-----------------+-----------------+
| 1 channel ADC   | 2 channels ADC  |
+=================+=================+
| - differential0 | - differential0 |
| - common-mode0  | - differential1 |
|                 | - common-mode0  |
|                 | - common-mode1  |
+-----------------+-----------------+

Supported features
==================

SPI wiring modes
----------------

The driver currently supports the following SPI wiring configurations:

One lane mode

Annotation

Atlas domain: Support Tooling And Documentation / Documentation.
Implementation status: atlas-only.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.