efi_lookup_devpath
EFI_DEVICE_PATH *efi_lookup_devpath(EFI_HANDLE);
devpath = efi_lookup_devpath(h);
devpath = efi_lookup_devpath(condev);
devpath = efi_lookup_devpath(handles[index]);
devpath = efi_lookup_devpath(handles[i]);
text = efi_devpath_name(efi_lookup_devpath(h));
if ((devpath = efi_lookup_devpath(hin[i])) == NULL)
text = efi_devpath_name(efi_lookup_devpath(h));
devpath = efi_lookup_devpath(handle);
devpath = efi_lookup_devpath(h);