Acpi Prp0001 0 -

Example: drivers/iio/pressure/bmp280.c includes:

ACPI is the standard for device discovery, power management, and configuration in x86 systems (and increasingly ARM servers). When a PC boots, the BIOS/UEFI provides the OS with ACPI tables (DSDT, SSDT, etc.). These tables contain AML (ACPI Machine Language) bytecode that describes every device on the motherboard: PCIe slots, UARTs, I2C controllers, GPIOs, and more. acpi prp0001 0

[ 0.987654] ACPI: PRP0001:00: PRP0001 device Or a related error: Example: drivers/iio/pressure/bmp280

Thus, acpi prp0001 0 is not going away; it remains a vital “back door” for flexible device description. The string acpi prp0001 0 unlocks a fascinating corner of the Linux kernel’s driver model. It tells a story of hardware abstraction bridging two worlds: the rigid, BIOS-centric ACPI and the flexible, open-source-friendly Device Tree. "PRP0001") Name (_DSD

Name (_HID, "PRP0001") Name (_DSD, Package () ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"), Package () Package () "compatible", "bosch,bme280" , Package () "reg", 0x77 , // I2C address ) For a PRP0001 device to work, the kernel driver must support both Device Tree and ACPI PRP0001. The driver typically uses the MODULE_DEVICE_TABLE macro with of_match_ptr and an ACPI match table.

ls /sys/bus/i2c/devices/