cat /sys/kernel/debug/sof/status
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. Acpi 80860f14
The primary internal "hard drive" for most budget Windows/Linux tablets. many peripherals (I2C