Documentation/hwmon/max6620.rst
Source file repositories/reference/linux-study-clean/Documentation/hwmon/max6620.rst
File Facts
- System
- Linux kernel
- Corpus path
Documentation/hwmon/max6620.rst- Extension
.rst- Size
- 1468 bytes
- Lines
- 47
- 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
.. SPDX-License-Identifier: GPL-2.0-or-later
Kernel driver max6620
=====================
Supported chips:
Maxim MAX6620
Prefix: 'max6620'
Addresses scanned: none
Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/max6620.pdf
Authors:
- L\. Grunenberg <contact@lgrunenberg.de>
- Cumulus Networks <support@cumulusnetworks.com>
- Shuotian Cheng <shuche@microsoft.com>
- Arun Saravanan Balachandran <Arun_Saravanan_Balac@dell.com>
Description
-----------
This driver implements support for Maxim MAX6620 fan controller.
The driver configures the fan controller in RPM mode. To give the readings more
range or accuracy, the desired value can be set by a programmable register
(1, 2, 4, 8, 16 or 32). Set higher values for larger speeds.
The driver provides the following sensor access in sysfs:
================ ======= =====================================================
fan[1-4]_alarm ro Fan alarm.
fan[1-4]_div rw Sets the nominal RPM range of the fan. Valid values
are 1, 2, 4, 8, 16 and 32.
fan[1-4]_input ro Fan speed in RPM.
fan[1-4]_target rw Desired fan speed in RPM.
================ ======= =====================================================
Usage notes
-----------
This driver does not auto-detect devices. You will have to instantiate the
devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
details.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.