(Older kernels accept both; modern kernels prefer acpi.prp0001=0 )
In Linux, the ACPI PRP0001 device is supported by the acpi kernel module. The acpi module provides a framework for interacting with ACPI devices, including the PRP0001. Linux distributions often use the acpi module to manage power consumption and configuration of ACPI devices. acpi prp0001 0
Here is a partial copy and paste of the driver setup information file which shows driver support for the hardware ID you posted: % HP Support Community (Older kernels accept both; modern kernels prefer acpi
For kernel developers, PRP0001 is part of the "Unified Device Property API." It allows you to define device properties in ACPI using a special _DSD (Device Specific Data) object. This permits the kernel to match the device to a driver using a compatible string (like atmel,24c256 ) even though it's on an ACPI platform. Here is a partial copy and paste of
PRP0001 is a special, Microsoft-defined (CID). Its definition:
Threshold? Ghost write? She traced the function enable_ghost_write . It didn't touch PCI, memory, or I/O ports. It wrote a single byte to a reserved MSR (Model Specific Register) that Intel's documentation claimed was "unused."