Acpi 80860f14 File

ACPI\80860F14 (often listed as ACPI\VEN_8086&DEV_0F14) identifies the Intel SD Host Controller, a hardware component primarily found in mobile and low-power devices powered by Intel "Bay Trail" or "Cherry Trail" processors. This controller manages communication between the system and its internal storage (eMMC) or external SD card slots. Device Identification & Function Hardware Name: Intel SD Host Controller.

The Hardware Behind the ID: Intel's Low-Power I2C Controller

Bay Trail and Cherry Trail Architectures

Between 2013 and 2016, Intel released the Bay Trail (e.g., Atom Z3700 series, Celeron N2800/J1900) and later Cherry Trail (Atom x5/x7) platforms. These system-on-chips (SoCs) were designed for tablets, low-cost laptops, and embedded devices. To save power and physical space, Intel moved many peripheral controllers—such as I2C, SPI, and UART—onto the SoC itself, exposing them via ACPI instead of traditional PCIe. Acpi 80860f14

sudo dmesg | grep -i "sst"
sudo i2cdetect -l (if i2c-tools installed)

DefinitionBlock ("DSDT.aml", "DSDT", 2, "INTEL", "80860F14", 0)
On Bay Trail, this device often acts as a GPIO/I2C bridge for touchscreens, sensors, and other peripheral control. DefinitionBlock ("DSDT
The primary role of this controller is to manage the interface between the operating system and SD (Secure Digital) storage 0)
 On Bay Trail
This specific identifier refers to the Intel SD Host Controller. When it fails, your eMMC internal storage, microSD card slot, and often your WiFi (which usually runs over the SDIO bus) simply vanish. Here is how to identify and fix the issue. Why is ACPI 80860F14 a problem?
Example ASL code