After extensive research, cross-referencing with Intel’s reference documentation, and analyzing Linux kernel source code (specifically the drivers/platform/x86 and drivers/i2c directories), we arrive at a clear conclusion:
: This controller allows the operating system to interface with SD (Secure Digital) cards , microSD slots, and eMMC flash storage. Hardware IDs Acpi 80860f14
On Debian/Ubuntu: sudo apt install firmware-intel-sound After extensive research
A typical ACPI device scope looks like: