acpi_scan
if (acpi_scan(&handle, ba->ba_acpipbase, 16) != NULL) {
if ((ptr = acpi_scan(&handle, ebda, 1024)))
if ((ptr = acpi_scan(&handle, ACPI_BIOS_RSDP_WINDOW_BASE,
u_int8_t *acpi_scan(struct acpi_mem_map *, paddr_t, size_t);
if ((ptr = acpi_scan(&handle, ebda, 1024)))
if ((ptr = acpi_scan(&handle, ACPI_BIOS_RSDP_WINDOW_BASE,
u_int8_t *acpi_scan(struct acpi_mem_map *, paddr_t, size_t);