Function Index 0: Query Implemented Functions

This _DSM Interface for Byte Addressable Energy Backed Function Class (Function Interface 1) function returns the set of supported function indexes.

Function 0 of every _DSM is a query function that returns the set of supported function indexes, and is always required. For the definition of Function 0, see section 9.14.1, "_DSM (Device Specific Method)" in the ACPI 6.0 specification.

Arguments (ARG 3)

None.

Returns

This function returns an ACPI Buffer containing the following byte values in order: 0xFF, 0xFF, 0xFF, & 0xFF.