HP Business-Class PCs To Provide Hardware Sensors Reporting With Linux 6.5

Written by Michael Larabel in Hardware on 5 June 2023 at 06:14 AM EDT. 8 Comments
For those running HP or HP-Compaq business-class systems whether they be desktops or laptops, improved hardware sensor reporting is expected for the upcoming Linux 6.5 kernel thanks to a new HP WMI Sensors driver set to be mainlined.

The "hp-wmi-sensors" driver configured via the new SENSORS_HP_WMI Kconfig option allows for the Windows Management Instrumentation (WMI) sensors found on business-grade HP computers to be exposed under Linux via the hardware monitoring (HWMON) subsystem. The most common sensors are for exposing the computer temperature and fan speed data while on some systems it is also able to report the current (milliAmperes), voltages, and chassis intrusion alarm indicator.

This HP WMI Sensors driver was authored by James Seo and based in part on some HP client documentation published back in 2005. This driver has been tested so far on various systems like the HP Z420, HP EliteOne 800 G1, and HP Compaq Elite 8300 SFF.

This HP WMI Sensors driver was queued into HWMON's hwmon-next branch making it material for the next Linux kernel cycle. The Linux 6.5 merge window will be opening up in a few weeks following the v6.4 release.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.

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