service: nfc: Read tag protocol only for nfc backend

1 files changed, 6 insertions, 2 deletions

diff --git a/src/core/hle/service/nfc/nfc_interface.cpp b/src/core/hle/service/nfc/nfc_interface.cpp
index 48405f6f2..130fb7f78 100644
--- a/src/core/hle/service/nfc/nfc_interface.cpp
+++ b/src/core/hle/service/nfc/nfc_interface.cpp
@@ -142,9 +142,13 @@ void NfcInterface::AttachAvailabilityChangeEvent(HLERequestContext& ctx) {
 void NfcInterface::StartDetection(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
-    const auto tag_protocol{rp.PopEnum<NfcProtocol>()};
-    LOG_INFO(Service_NFC, "called, device_handle={}, nfp_protocol={}", device_handle, tag_protocol);
+    auto tag_protocol{NfcProtocol::All};
+
+    if (backend_type == BackendType::Nfc) {
+        tag_protocol = rp.PopEnum<NfcProtocol>();
+    }
 
+    LOG_INFO(Service_NFC, "called, device_handle={}, nfp_protocol={}", device_handle, tag_protocol);
     auto result = GetManager()->StartDetection(device_handle, tag_protocol);
     result = TranslateResultToServiceError(result);