80860f14 — Acpi

ACPI ID 80860F14 represents a key transitional period in Intel's strategy to extend its x86 architecture into the low-power mobile market. The Bay Trail and Braswell SoCs were successors to the Clover Trail platform and laid the foundational design for the Cherry Trail, Apollo Lake, and Gemini Lake platforms that followed.

A major issue soon surfaced: on some devices, the physical SD card slot simply wouldn't work. This was fixed by a patch titled mmc: sdhci-acpi: Fix broken card detect for ACPI HID 80860F14 . The root cause was that "some 80860F14 devices do not support card detect and must rely completely on GPIO" (General Purpose Input/Output pins on the SoC). This fix forced the kernel to use the GPIO signal for card detection instead of the controller's broken native method, making the SD card slots work reliably.

The Intel Management Engine Interface (MEI) is a communication interface that enables the operating system to interact with the Intel Management Engine (ME), a small, isolated processor integrated into Intel chipsets. The ME provides various functions, including: Acpi 80860f14

The most interesting feature of the is its "dual identity" in system firmware, which often leads to a tech-support mystery for Linux users:

Popular legacy hardware like the Microsoft Surface 3 Go to product viewer dialog for this item. Lenovo Miix 2 10 Go to product viewer dialog for this item. ACPI ID 80860F14 represents a key transitional period

This tool can sometimes identify and update these controllers automatically.

For older versions like Windows 7, finding a 32-bit driver for this specific hardware can be difficult, as these platforms were primarily designed for 64-bit Windows 8.1 and 10. Key Takeaway This was fixed by a patch titled mmc:

Understanding what the hardware ID stands for makes diagnosing and fixing driver conflicts straightforward:

Device (I2C4)

: The exact device ID representing the Intel Secure Digital (SD) Host Controller architecture. Common Affected Devices