Acpi Prp0001 0 Work Info

Point Windows to the folder where you unzipped the downloaded driver.

For an I2C device, ensure the I2C controller driver is bound:

The ACPI node is missing the compatible property, so the kernel doesn't know which driver to load. The device is ignored. acpi prp0001 0

If you see acpi PRP0001:00 in your kernel logs, it is not necessarily a cause for alarm. It simply indicates that an ACPI device is being enumerated with the magic PRP0001 ID. The device name, such as i2c-PRP0001:00 , will vary depending on the bus.

A significant issue arose when a driver had both an acpi_match_table and an of_match_table . In such a scenario, acpi_device_get_match_data() would look at the driver's ACPI table, find no entry for PRP0001 , and return NULL, even though the device was successfully matched via the DT table. A 2019 patch from Intel's Andy Shevchenko was among the first to respect PRP0001 in this path. Later, in 2026, this was further refined by a patch that explicitly checks for PRP0001 and fetches the correct match data from the driver's of_match_table . Point Windows to the folder where you unzipped

The device string typically appears in Linux system logs (such as dmesg or /sys paths) and refers to a generic ACPI device node .

In Linux kernel development, is a special ACPI Hardware ID (HID) used to enable Device Tree (DT) compatibility If you see acpi PRP0001:00 in your kernel

PRP0001 is a special, Microsoft-defined (CID). Its definition:

As the official Linux kernel documentation explains: