Documentation/hwmon/emc6w201.rst

File Facts

System

Linux kernel

Corpus path

Documentation/hwmon/emc6w201.rst

Extension

.rst

Size

1339 bytes

Lines

48

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 emc6w201
======================

Supported chips:

  * SMSC EMC6W201

    Prefix: 'emc6w201'

    Addresses scanned: I2C 0x2c, 0x2d, 0x2e

    Datasheet: Not public

Author: Jean Delvare <jdelvare@suse.de>


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

From the datasheet:

"The EMC6W201 is an environmental monitoring device with automatic fan
control capability and enhanced system acoustics for noise suppression.
This ACPI compliant device provides hardware monitoring for up to six
voltages (including its own VCC) and five external thermal sensors,
measures the speed of up to five fans, and controls the speed of
multiple DC fans using three Pulse Width Modulator (PWM) outputs. Note
that it is possible to control more than three fans by connecting two
fans to one PWM output. The EMC6W201 will be available in a 36-pin
QFN package."

The device is functionally close to the EMC6D100 series, but is
register-incompatible.

The driver currently only supports the monitoring of the voltages,
temperatures and fan speeds. Limits can be changed. Alarms are not
supported, and neither is fan speed control.


Known Systems With EMC6W201
---------------------------

The EMC6W201 is a rare device, only found on a few systems, made in
2005 and 2006. Known systems with this device:

* Dell Precision 670 workstation
* Gigabyte 2CEWH mainboard

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.