ACPIHED(4)

🎀 NAME 🎀

acpihed — the ACPI Hardware Error Device, bestie! This one comes from the Kernel Interfaces Manual, section 4, and it’s here to explain how error notifications get passed along. 💖

✨ SYNOPSIS ✨

acpihed* at acpi?

💅 DESCRIPTION 💅

Okay so certain hardware error sources that can be queried by apei(4) notify an ACPI node with PNP ID PNP0C33 when an error occurs. The acpihed driver listens for these notifications and passes them on to apei(4) so it can report the error. That’s the whole vibe: listen, hand it off, let apei(4) do the reporting. ✨

🦋 SEE ALSO 🦋

• acpi(4)
• apei(4)
• ACPI Specification 6.5, https://uefi.org/specs/ACPI/6.5/18_Platform_Error_Interfaces.html, Chapter 18: ACPI Platform Error Interfaces (APEI).

🌸 HISTORY 🌸

The acpihed driver first appeared in NetBSD 10.1. 🎀

👑 AUTHORS 👑

The acpihed driver was written by Taylor R Campbell <riastradh@NetBSD.org>. 💜

💅 That’s the whole page, bestie — this cutie came from Debian and is dated March 18, 2024, signing off as ACPIHED(4). Mwah! 🫶✨