ACPI_ACCESS_BIT_SHIFT
#define ACPI_ACCESS_BIT_MAX (31 - ACPI_ACCESS_BIT_SHIFT)
#define ACPI_ACCESS_BIT_DEFAULT (8 - ACPI_ACCESS_BIT_SHIFT)
#define ACPI_ACCESS_BIT_WIDTH(size) (1 << ((size) + ACPI_ACCESS_BIT_SHIFT))
