Documentation/hwmon/pt5161l.rst

Source file repositories/reference/linux-study-clean/Documentation/hwmon/pt5161l.rst

File Facts

System: Linux kernel
Corpus path: Documentation/hwmon/pt5161l.rst
Extension: .rst
Size: 1115 bytes
Lines: 43
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 pt5161l
=====================

Supported chips:

  * Astera Labs PT5161L

    Prefix: 'pt5161l'

    Addresses scanned: I2C 0x20 - 0x27

    Datasheet: Not publicly available.

Authors: Cosmo Chou <cosmo.chou@quantatw.com>

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

This driver implements support for temperature monitoring of Astera Labs
PT5161L series PCIe retimer chips.

This driver implementation originates from the CSDK available at
https://github.com/facebook/openbmc/tree/helium/common/recipes-lib/retimer-v2.14
The communication protocol utilized is based on the I2C/SMBus standard.

Sysfs entries
----------------

================ ==============================================
temp1_input      Measured temperature (in millidegrees Celsius)
================ ==============================================

Debugfs entries
----------------

================ ===============================
fw_load_status   Firmware load status
fw_ver           Firmware version of the retimer
heartbeat_status Heartbeat status
================ ===============================

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.