Acpi Prp0001 0 2021 May 2026

The ACPI ID PRP0001 is a special "generic" identifier used primarily in Linux to allow the operating system to use Device Tree (DT) style device drivers even when the system firmware (BIOS/UEFI) uses ACPI.  What it Means 

Command line or overlay syntax (less common): acpi prp0001 0

• Embedded Controllers: Often used for custom embedded controllers on laptops.
• GPIO/Platform Drivers: Used when firmware authors follow the "Linux Device Tree" style bindings inside ACPI.
• Sensors: Ambient light sensors or accelerometers often use this ID.

Examine ACPI namespace at runtime:

Part 3: The Counterintuitive – acpi prp0001 0

So what does acpi prp0001 0 do?

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Part 4: Why Does This Appear on My System?

You might see acpi prp0001 0 on:

Normally, ACPI and Devicetree (the system used by Linux on ARM/mobile devices) are two completely different ways for a computer to talk to its hardware. is a special "virtual" ID that tells the operating system: The ACPI ID PRP0001 is a special "generic"