Documentation/hwmon/ds1621.rst

Source file repositories/reference/linux-study-clean/Documentation/hwmon/ds1621.rst

File Facts

System: Linux kernel
Corpus path: Documentation/hwmon/ds1621.rst
Extension: .rst
Size: 6981 bytes
Lines: 218
Domain: Support Tooling And Documentation
Bucket: Documentation
Inferred role: Support Tooling And Documentation: documentation
Status: atlas-only

Why This File Exists

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.

Dependency Surface

No C-style include directives detected by the generator.

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

Kernel driver ds1621
====================

Supported chips:

  * Dallas Semiconductor / Maxim Integrated DS1621

    Prefix: 'ds1621'

    Addresses scanned: none

    Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/DS1621.pdf

  * Dallas Semiconductor DS1625

    Prefix: 'ds1625'

    Addresses scanned: none

    Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/DS1620.pdf

  * Maxim Integrated DS1631

    Prefix: 'ds1631'

    Addresses scanned: none

    Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/DS1631-DS1731.pdf

  * Maxim Integrated DS1721

    Prefix: 'ds1721'

    Addresses scanned: none

    Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/DS1721.pdf

  * Maxim Integrated DS1731

    Prefix: 'ds1731'

    Addresses scanned: none

    Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/DS1631-DS1731.pdf

Authors:
      - Christian W. Zuckschwerdt <zany@triq.net>
      - valuable contributions by Jan M. Sendler <sendler@sendler.de>
      - ported to 2.6 by Aurelien Jarno <aurelien@aurel32.net>
	with the help of Jean Delvare <jdelvare@suse.de>

Module Parameters
------------------

* polarity int
  Output's polarity:

  * 0 = active high,
  * 1 = active low

Description
-----------

The DS1621 is a (one instance) digital thermometer and thermostat. It has
both high and low temperature limits which can be user defined (i.e.
programmed into non-volatile on-chip registers). Temperature range is -55
degree Celsius to +125 in 0.5 increments. You may convert this into a
Fahrenheit range of -67 to +257 degrees with 0.9 steps. If polarity
parameter is not provided, original value is used.

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.