Documentation/hwmon/tmp464.rst

Source file repositories/reference/linux-study-clean/Documentation/hwmon/tmp464.rst

File Facts

System: Linux kernel
Corpus path: Documentation/hwmon/tmp464.rst
Extension: .rst
Size: 1621 bytes
Lines: 74
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

Kernel driver tmp464
====================

Supported chips:

  * Texas Instruments TMP464

    Prefix: 'tmp464'

    Addresses scanned: I2C 0x48, 0x49, 0x4a and 0x4b

    Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp464.html

  * Texas Instruments TMP468

    Prefix: 'tmp468'

    Addresses scanned: I2C 0x48, 0x49, 0x4a and 0x4b

    Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp468.html

Authors:

	Agathe Porte <agathe.porte@nokia.com>
	Guenter Roeck <linux@roeck-us.net>

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

This driver implements support for Texas Instruments TMP464 and TMP468
temperature sensor chips. TMP464 provides one local and four remote
sensors. TMP468 provides one local and eight remote sensors.
Temperature is measured in degrees Celsius. The chips are wired over
I2C/SMBus and specified over a temperature range of -40 to +125 degrees
Celsius. Resolution for both the local and remote channels is 0.0625
degree C.

The chips support only temperature measurements. The driver exports
temperature values, limits, and alarms via the following sysfs files:

**temp[1-9]_input**

**temp[1-9]_max**

**temp[1-9]_max_hyst**

**temp[1-9]_max_alarm**

**temp[1-9]_crit**

**temp[1-9]_crit_alarm**

**temp[1-9]_crit_hyst**

**temp[2-9]_offset**

**temp[2-9]_fault**

Each sensor can be individually disabled via Devicetree or from sysfs
via:

**temp[1-9]_enable**

If labels were specified in Devicetree, additional sysfs files will
be present:

**temp[1-9]_label**

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.