If present, you’ll see the device’s compatible string and its driver binding.
The PRP0001 ID tells the Linux kernel: "Look inside this device's properties for a standard Linux 'compatible' string to find the right driver." 🛠️ Performance & Functionality
Missing chipset drivers, specifically Intel Serial IO drivers (I2C/SPI), or proprietary driver packages for Chromebooks/Steam Deck running on Windows.
Example from an ACPI table (SSDT):
To understand this ID, you must look at how modern computers find and configure integrated hardware. Traditionally, the computing world split into two firmware configuration mechanisms:
“ACPI device with HID PRP0001 and instance 0.”
Define the device with its official ACPI _HID as the primary identifier and use _CID = "PRP0001" for fallback only: acpi prp0001 0
: Manufacturers often use ACPI evaluation to toggle custom properties.
To avoid writing redundant drivers, PRP0001 was introduced to allow these drivers to bind to ACPI-enumerated devices. This means you can use the same drivers for both DT-based ARM devices and ACPI-based x86/ARM devices. 3. How PRP0001 Works technically
In short, it is a bridge. It allows standard PC firmware (ACPI) to use drivers written for embedded systems. If present, you’ll see the device’s compatible string
: If you used a custom BIOS (like MrChromebox), check the CoolStar or Chrultrabook community for specific firmware-compliant drivers. Verify Hardware IDs :
The 0 is just the . If you had multiple devices using PRP0001 , you'd see PRP0001:0 , PRP0001:1 , etc.
The device is defined in the AML (ACPI Machine Language) code. Tells the OS "this is a device with specific properties". Traditionally, the computing world split into two firmware
This difference creates a challenge. If a developer wants to use a simple I2C sensor on an x86 ACPI system, they have two options:
The figure behind her dissolved. The lights returned to full brightness. The fans spun up to their normal whine. Lin's phone buzzed again. This time, it was a calendar invite for 2:47 AM next Tuesday.