*handlesPresent = 0;
#if ACPI_CA_VERSION < 0x20091112
acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX, nv_acpi_find_methods, NULL, NULL);
#else
ACPI_UINT32_MAX, nv_acpi_find_methods, NULL, NULL, NULL);
#endif
if (nvif_handle)
{