The identifier ACPI\80860F14 refers to the Intel SD Host Controller
, a hardware component primarily found in systems using Intel Atom "Bay Trail" processors. Key Details
: This controller allows the operating system to interface with SD (Secure Digital) cards , microSD slots, and eMMC flash storage. Hardware IDs
: It is commonly listed in Device Manager or system logs under several identifiers, including ACPI\VEN_8086&DEV_0F14 and its compatible ID Common Devices
: You will typically see this device in budget laptops and tablets like the Acer Aspire ES1-131 ASUS T100/T101 series HP Pavilion x2 Arch Linux Forums Common Issues and Solutions
If this device appears with a yellow exclamation mark in Windows or fails to work in Linux: Driver Missing : In Windows, you need the Intel SD Host Controller driver
. Without it, the system will not recognize inserted SD cards or its own internal eMMC storage. Linux Boot Issues
: On some Linux distributions, this controller can cause "timeout" errors or power management bugs. Users often resolve this by adding kernel parameters like intel_idle.max_cstate=1 OS Support
: Older kernels (e.g., pre-4.13) or 32-bit UEFI systems might require specific patches to properly mount the storage driven by this controller. Porteus forum Are you trying to fix a "Missing Driver" error in Windows, or are you troubleshooting an SD card not showing up in Linux?
Arch Linux and SDIO WiFi on a Bay Trail tablet | «WatchMySys» Blog 13 Dec 2015 —
Troubleshooting ACPI 80860F14: Fixing Storage and WiFi on Intel Bay Trail Devices
If you’ve ever tried to install Linux on an older Intel Atom "Bay Trail" device—like an Intel Compute Stick, a budget Acer Aspire, or a Microsoft Surface 3—you’ve likely hit a wall with the ACPI 80860F14 device ID.
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?
The 80860F14 device is part of Intel’s Low Power Subsystem (LPSS). In many Linux distributions, the kernel either lacks the specific configuration to talk to this controller or gets confused by how the BIOS presents it. This leads to:
Missing Storage: Your hard drive (/dev/mmcblk0) doesn't show up during boot.
No WiFi: Since the WiFi chip (often the Realtek RTL8723BS) relies on this SDIO controller, it won't be detected even if you have the drivers.
Read-Only SD Cards: Sometimes the card is found but stuck in read-only mode. Step 1: Check your Kernel Config
If you are compiling your own kernel (common for Arch or Gentoo users), ensure you have Intel LPSS support enabled. Specifically, look for: CONFIG_X86_INTEL_LPSS CONFIG_MMC_SDHCI_ACPI
Users on Stack Exchange have noted that including these options allows the MMC block and core drivers to finally see the storage device. Step 2: The DSDT Override (Advanced)
Some BIOS implementations "hide" the hardware under non-standard names. A known fix for devices like the Acer Switch 10E involves dumping the ACPI tables and manually editing the DSDT (Differentiated System Description Table).
Dump the table: sudo cat /sys/firmware/acpi/tables/DSDT > dsdt.aml
Decompile: Use iasl -d dsdt.aml to get a readable .dsl file.
The Edit: Find the device SDHB or SDHC and ensure the _HID (Hardware ID) is correctly set to "80860F14".
Recompile & Load: Recompile the table and tell GRUB to load your custom ACPI override at boot. Step 3: Kernel Parameters Acpi 80860f14
Before you start hacking your BIOS tables, try simple kernel boot parameters. Some users found success adding these to their GRUB configuration: intel_idle.max_cstate=1 (fixes stability on Bay Trail) acpi_osi=Linux Summary of Affected Devices
If you own one of these, you are likely dealing with the 80860F14 controller: Arch Linux and SDIO WiFi on a Bay Trail tablet - WatchMySys
Title: Handling ACPI 80860F14 (Intel Bay Trail I2C Controller) on Linux
Post:
I'm encountering the ACPI device ID 80860F14 on an Intel Atom Bay Trail (e.g., Z3735F, Z3736G) based system.
Context:
80860F14pinctrl-baytrail or designware_i2c (dw_i2c).Symptoms:
dmesg shows: i2c_designware 80860F14:00: Unknown Synopsys I2C bus typeCONFIG_I2C_DESIGNWARE_PLATFORM=y.Root Cause: The ACPI driver binding for this ID requires specific handling because the Bay Trail I2C controllers are not fully compliant with the standard Synopsys DesignWare I2C IP block. They need a "semaphore" mechanism to coordinate with the P-unit (Power Management unit).
Fix / Workaround:
Kernel Configuration: Ensure these options are enabled (not just modular):
CONFIG_I2C_DESIGNWARE_CORE=y
CONFIG_I2C_DESIGNWARE_PLATFORM=y
CONFIG_I2C_DESIGNWARE_BAYTRAIL=y # Critical for this ID
Kernel Command Line (if still failing):
Add intel_idle.max_cstate=1 to grub. This prevents the P-unit from entering deep C-states that break the I2C semaphore.
Check ACPI Status:
ls /sys/bus/acpi/devices/80860F14:00/
cat /sys/bus/acpi/devices/80860F14:00/status
Expected status: 15 (present, enabled, shown, functioning).
Final note: On mainline kernels 5.10+, this ID should be automatically handled by dw_i2c via the baytrail_sem_platform quirk. If you still see errors, check your DSDT for custom modifications or consider updating your firmware.
Does anyone have a device tree or ACPI overlay for this ID to manually assign the pinctrl-single properties?
The hardware ID ACPI\80860F14 refers to the Intel SD Host Controller
, a component typically found in Intel Atom "Bay Trail" and "Cherry Trail" systems. This controller is essential for managing eMMC internal storage and MicroSD card slots. Home Assistant Community Quick Fix Guide
If you see this as an "Unknown Device" in Device Manager, follow these steps to install the correct driver: 1. Check Windows Update Before manual installation, try letting Windows find it: Right-click the button and select Device Manager
Find the device under "Other devices" (usually listed with a yellow exclamation mark). Right-click it and select Update driver Search automatically for updated driver software 2. Manual Driver Installation
If Windows Update fails, you can download the driver manually from your device manufacturer (OEM) support page. Common systems using this ID include: : Models like the Steps for Manual Install: Download the Intel Serial IO Driver Intel SD Host Controller Driver for your specific laptop model. Extract the ZIP file. Device Manager , right-click the unknown device and choose Browse my computer for drivers Point it to the extracted folder and click 3. Advanced: Linux Troubleshooting
On Linux systems (e.g., Ubuntu, Mint), this hardware is often handled by the sdhci_acpi kernel module. Update Kernel : Ensure you are running kernel 5.19 or later for the best support. Kernel Parameters : If your storage isn't detected, you may need to add intel_idle.max_cstate=1 snd_intel_dspcfg.dsp_driver=3
to your GRUB configuration to resolve power management conflicts. Linux Mint Device Details 8086 (Intel) Intel SD / eMMC Host Controller Compatibility Windows 7, 8, 10, 11 (64-bit) Are you trying to install a specific operating system like Windows 7 or a Linux distro on this device? "NUC" missing MMC kernel modules · Issue #1112 - GitHub
I can’t provide a full copyrighted paper. I can instead: The identifier ACPI\80860F14 refers to the Intel SD
Which would you like?
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.
Primary Role: It acts as the interface for eMMC flash memory and microSD/SD card readers.
Common Platforms: This identifier is frequently seen in 2-in-1 tablets, budget laptops, and mini PCs, such as the Microsoft Surface 3, ASUS E202SA, and Beelink BT3 Pro. Troubleshooting & Common Issues
If you are seeing this ID in your Device Manager with a yellow exclamation mark, it typically means the driver is missing or failing.
Missing Storage: If this driver fails, your computer may not recognize its internal hard drive (if it uses eMMC) or the SD card slot. Operating System Support:
Windows: Drivers are usually included in "Intel Chipset" or "Intel Serial IO" driver packages provided by your device manufacturer (OEM). You can find specific versions for Dell, Acer, and Lenovo on their support sites.
Linux: Modern kernels generally support this device via the sdhci_acpi module, though some older "Bay Trail" devices may require specific kernel parameters like sdhci_acpi.force_probe=80860F14:02 to detect the SD slot correctly. How to Install the Driver
Check Manufacturer Support: Visit the support page for your specific laptop or tablet model and look for "Chipset" or "Serial IO" drivers.
Windows Update: Often, "Optional Updates" in the Windows Update menu will contain the necessary Intel driver.
Intel Support: You can use the Intel Driver & Support Assistant to automatically scan for and install the latest compatible drivers for your chipset.
Are you trying to fix a specific error (like "Device not recognized") or
MicroSD Slot Not Recognized on Intel Compute Stick ... - GitHub
ACPI\80860F14 (also known as ACPI\VEN_8086&DEV_0F14 ) is the hardware identifier for the Intel SD Host Controller
found in Intel Atom "Bay Trail" and "Cherry Trail" processors. Review of the Intel SD Host Controller (ACPI\80860F14)
The ACPI\80860F14 device is a critical component for budget laptops and tablets—such as the Lenovo ideapad 100S Asus E200HA Asus Transformer
series—as it manages the internal eMMC storage and microSD card slots. Driver Compatibility
: While natively supported in Windows 10, this device is notorious for being difficult to configure on older or lightweight operating systems like Windows 7 32-bit Windows Thin PC
. Users often have to hunt for specific Intel "SOC" or "Sideband" driver packages from manufacturers like Linux Support Challenges
: On Linux distributions, this device frequently causes headaches. Common issues include the card reader failing to "wake up" after suspend or failing to detect cards entirely. In some cases, developers have had to create custom patches to bypass "dependency checking" in the Linux kernel to get the SDHCI-ACPI driver to initialize correctly. Hardware Limitations
: Because this controller is often paired with slower eMMC storage (which behaves like an internal SD card) rather than a true SSD, it can lead to bottlenecked system performance. Users on Reddit's linuxhardware forum
note that while functional, it results in slower application load times compared to standard SATA or NVMe drives.
: The ACPI\80860F14 is a functional but temperamental piece of hardware. It works well within its original Windows 10 environment, but if you are planning to install Linux or an older Windows version, be prepared to manually troubleshoot driver dependencies and power management settings. Are you trying to fix a missing driver for this device, or are you troubleshooting a card reader that isn't working? Title: Handling ACPI 80860F14 (Intel Bay Trail I2C
The hardware ID ACPI\80860F14 refers to the Intel Serial IO I2C Controller.
Here is a detailed breakdown of what this device is, why it appears in your Device Manager (usually as an "Unknown Device"), and how to fix it.
You will find this ACPI ID inside the following popular (and obscure) devices:
If you own any of these devices and run Linux, ACPI 80860F14 is likely the sole barrier to functional onboard audio.
Bay Trail is a system-on-chip designed for tablets, netbooks, embedded systems, and IoT devices. Unlike traditional PC architectures, many peripherals (I2C, SPI, UART, GPIO) are not connected via a legacy PCI bus but are instead enumerated as ACPI devices.
i2c_designware_platform.By demystifying this ACPI identifier, you have taken an important step toward mastering low-level hardware management on Intel-based embedded systems.
The identifier ACPI\80860F14 refers to the Intel SD Host Controller, a critical hardware component found in many Intel Atom-based devices like the Microsoft Surface 3, Lenovo IdeaPad 100S, and various Acer Aspire models.
If you are looking for a "helpful essay" or guide on this specific device ID, it usually relates to troubleshooting driver issues during a fresh OS installation. Below is a breakdown of why this hardware matters and how to manage it. What is the Intel SD Host Controller?
The 80860F14 device is part of the Bay Trail or Cherry Trail platform. Its primary job is to act as the bridge between your operating system and flash storage devices, specifically:
eMMC Storage: Often the main "hard drive" in budget laptops and tablets.
SD Card Readers: Used for expandable storage via microSD or SD cards. Common Issues
Most users encounter this ID as an "Unknown Device" in the Windows Device Manager after reinstalling Windows. Without the correct driver:
The system may not recognize the internal eMMC drive, preventing you from installing an OS or booting into it. The SD card slot will not function. The device might appear as ACPI\VEN_8086&DEV_0F14. Finding the Right Driver
Because this is an Intel component, the specific driver you need often depends on your laptop manufacturer. You can find official downloads through:
Manufacturer Support Pages: Search for your specific model (e.g., Acer Aspire ES1-131
or ASUS X441SA) and look for "Intel Serial IO" or "Chipset" drivers.
Intel Driver & Support Assistant: This tool can sometimes identify and update these controllers automatically.
Microsoft Update Catalog: 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
If your laptop is "missing" its hard drive during a Windows setup, or your SD card isn't working, the 80860F14 driver is the likely culprit. Ensure you install the Intel Serial IO or Sideband Fabric Device drivers provided by your laptop's manufacturer to restore functionality.
Are you currently having trouble with an "Unknown Device" error, or do you need help finding a specific driver version for your laptop?
Intel SD Host Controller drivers / Acer Aspire ES1-131 - DriverIdentifier
The Linux kernel has supported Intel SST since version 3.14, but Bay Trail support has been notoriously finicky. The problem is rarely the kernel itself—it is the ACPI BIOS.
On Bay Trail tablets and embedded boards, OEMs hardcode the audio codec and its connections into the ACPI DSDT using custom methods. While Windows drivers are tolerant and use a fallback mechanism, the Linux snd_soc_sst driver requires exact matching between the ACPI ID and a known machine driver (e.g., bytcr_rt5640, bytcr_rt5651).
The 80860F14 entry tells the OS: "There is an SST Audio DSP here, and it is connected to a codec at I2C address 0x1A." However, the ACPI tables often fail to properly provide:
Thus, the kernel sees 80860F14, initializes the DSP, but then fails to find the codec. This results in the dreaded "failed to add I2C device" error.
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