Documentation/hwmon/nct7802.rst

Source file repositories/reference/linux-study-clean/Documentation/hwmon/nct7802.rst

File Facts

System: Linux kernel
Corpus path: Documentation/hwmon/nct7802.rst
Extension: .rst
Size: 1486 bytes
Lines: 55
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 nct7802
=====================

Supported chips:

  * Nuvoton NCT7802Y

    Prefix: 'nct7802'

    Addresses scanned: I2C 0x28..0x2f

    Datasheet: Available from Nuvoton web site

Authors:

	Guenter Roeck <linux@roeck-us.net>

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

This driver implements support for the Nuvoton NCT7802Y hardware monitoring
chip. NCT7802Y supports 6 temperature sensors, 5 voltage sensors, and 3 fan
speed sensors.

Smart Fan™ speed control is available via pwmX_auto_point attributes.

Sysfs Attributes
----------------

Sysfs attributes unique to this chip are documented below. For common
attributes, see Documentation/hwmon/sysfs-interface.rst.

step_up_time
			Time interval between successive duty cycle increases
			when in Smart Fan mode. Specified in milliseconds and
			rounded to intervals of 100 in the range 100-25500.

step_down_time
			Time interval between successive duty cycle decreases
			when in Smart Fan mode. Specified in milliseconds and
			rounded to intervals of 100 in the range 100-25500.

Tested Boards and BIOS Versions
-------------------------------

The driver has been reported to work with the following boards and
BIOS versions.

======================= ===============================================
Board			BIOS version
======================= ===============================================
Kontron COMe-bSC2	CHR2E934.001.GGO
Kontron COMe-bIP2	CCR2E212
======================= ===============================================

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.