1 files changed, 15 insertions, 0 deletions
diff --git a/Ryujinx.HLE/HOS/Services/Settings/ISystemSettingsServer.cs b/Ryujinx.HLE/HOS/Services/Settings/ISystemSettingsServer.cs
index 66b768ee..1a437289 100644
--- a/Ryujinx.HLE/HOS/Services/Settings/ISystemSettingsServer.cs
+++ b/Ryujinx.HLE/HOS/Services/Settings/ISystemSettingsServer.cs
@@ -7,6 +7,7 @@ using LibHac.FsSystem.NcaUtils;
 using Ryujinx.Common.Logging;
 using Ryujinx.HLE.FileSystem;
 using Ryujinx.HLE.HOS.SystemState;
+using Ryujinx.HLE.Utilities;
 using System;
 using System.IO;
 using System.Text;
@@ -271,6 +272,20 @@ namespace Ryujinx.HLE.HOS.Services.Settings
             return ResultCode.Success;
         }
 
+        [CommandHipc(90)]
+        // GetMiiAuthorId() -> nn::util::Uuid
+        public ResultCode GetMiiAuthorId(ServiceCtx context)
+        {
+            // NOTE: If miiAuthorId is null ResultCode.NullMiiAuthorIdBuffer is returned.
+            //       Doesn't occur in our case.
+
+            UInt128 miiAuthorId = Mii.Helper.GetDeviceId();
+
+            miiAuthorId.Write(context.ResponseData);
+
+            return ResultCode.Success;
+        }
+
         public byte[] GetFirmwareData(Switch device)
         {
             const ulong SystemVersionTitleId = 0x0100000000000809;