Acpi Prp0001 0 -

Hardware engineers can wire a new I2C or SPI sensor to an x86 motherboard. Instead of hacking the BIOS to make the OS recognize it, they can load a tiny ACPI overlay containing PRP0001 and the sensor's Device Tree name. 3. Better ARM Server Support

Traditional ACPI expects devices to be known in advance by the OS (using _HID ). But what if you have a sensor or peripheral that ACPI doesn't natively recognize? This is where PRP0001 comes in. acpi prp0001 0