EcSpaceHandler
static ACPI_STATUS EcSpaceHandler(UINT32 Function,
&EcSpaceHandler, &EcSpaceSetup, sc);
EcSpaceHandler);
status = EcSpaceHandler(ACPI_READ, addr, width * 8, val, sc, NULL);
status = EcSpaceHandler(ACPI_WRITE, addr, width * 8, &val, sc, NULL);