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+|- style="border-top: double"
−| 0-1 || Pid
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= fsp-ldr =
+This is "nn::fssrv::sf::IFileSystemProxyForLoader".
+
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 0 || [[#OpenCodeFileSystem]]
+|-
+| 1 || [[#IsArchivedProgram]]
+|-
+| 2 || [4.0.0+] [[#SetCurrentProcess]]
+|}
+
+== OpenCodeFileSystem ==
+Takes a type-0x19 input buffer containing a [[#FspPath]] and an input [[NCM_services#ProgramId|ProgramId]]. Returns an [[#IFileSystem]].
+
+[10.0.0+] This now takes an additional type-0x1A output buffer.
+
+[16.0.0+] This now takes an additional input [[#ContentAttributes]].
+
+[17.0.0+] This now takes a type-0x6 output buffer instead of a type-0x1A output buffer.
+
+== IsArchivedProgram ==
+Takes an input u64 ProcessId. Returns a bool (1 if the process id's [[#FspPath]] ends in ".nca").
+
+== SetCurrentProcess ==
+Takes an input u64 ProcessId. No output.
+
+= fsp-pr =
+This is "nn::fssrv::sf::IProgramRegistry".
+
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 0 || [[#RegisterProgram]]
+|-
+| 1 || [[#UnregisterProgram]]
+|-
+| 2 || [4.0.0+] [[#SetCurrentProcess]]
+|-
+| 256 || [1.0.0-9.2.0] [[#SetEnabledProgramVerification]]
+|}
+
+== RegisterProgram ==
+Takes a [[NCM_services#StorageId|StorageId]], an u64 ProcessId, a [[NCM_services#ProgramId|ProgramId]], a 0x1C type-A buffer for the [[NPDM#FS_Access_Header| FS Access Header]], and a 0x2C type-A buffer for the [[NPDM#FS_Access_Control| FS Access Control]]
+
+Final FS permissions are stored as (ACI0_perms & ACID_perms). Will panic(svcBreak) when buffer sizes from ipc-rawdata are invalid.
+
+== UnregisterProgram ==
+Takes a pid. Removes registered FS permissions for that PID.
+
+== SetEnabledProgramVerification ==
+Seems to sets a global flag to inputval & 1.
+
+When the flag is zero, it will set ret=0 instead of ret={error} when verifying the fixed-key [[NPDM]] ACID signature fails. This also skips verifying the [[NCA_Format|NCA Header]] signature using the ACID key. Note that if verifying the fixed-key ACID signature is successful, and verifying the ACID-key NCA header signature fails, it will throw an error and abort.
+
+[10.0.0+] This was moved to [[Loader_services|Loader]].
+
= fsp-srv =
= fsp-srv =
+This is "nn::fssrv::sf::IFileSystemProxy".
+
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
! Cmd || Name
|-
|-
−| 1 || [[#Initialize]]
+| 0 || [1.0.0] [[#OpenFileSystem]]
+|-
+| 1 || [[#SetCurrentProcess]]
+|-
+| 2 || OpenDataFileSystemByCurrentProcess
+|-
+| 7 || [2.0.0+] [[#OpenFileSystemWithPatch]]
+|-
+| 8 || [16.0.0+] [[#OpenFileSystemWithIdObsolete]] ([2.0.0-15.0.1] OpenFileSystemWithId)
+|-
+| 9 || [3.0.0+] OpenDataFileSystemByProgramId
+|-
+| 10 || [16.0.0+] [[#OpenFileSystemWithId]]
+|-
+| 11 || [[#OpenBisFileSystem]]
+|-
+| 12 || [[#OpenBisStorage]]
+|-
+| 13 || InvalidateBisCache
+|-
+| 17 || OpenHostFileSystem
+|-
+| 18 || OpenSdCardFileSystem
+|-
+| 19 || [2.0.0+] FormatSdCardFileSystem
+|-
+| 21 || [[#DeleteSaveDataFileSystem]]
+|-
+| 22 || [[#CreateSaveDataFileSystem]]
+|-
+| 23 || [[#CreateSaveDataFileSystemBySystemSaveDataId]]
+|-
+| 24 || RegisterSaveDataFileSystemAtomicDeletion
+|-
+| 25 || [2.0.0+] DeleteSaveDataFileSystemBySaveDataSpaceId
+|-
+| 26 || [2.0.0+] FormatSdCardDryRun
+|-
+| 27 || [2.0.0+] IsExFatSupported
+|-
+| 28 || [4.0.0+] DeleteSaveDataFileSystemBySaveDataAttribute
+|-
+| 29 || [19.0.0+] IsInitializationMode
+|-
+| 30 || [[#OpenGameCardStorage]]
+|-
+| 31 || [[#OpenGameCardFileSystem]]
+|-
+| 32 || [3.0.0+] ExtendSaveDataFileSystem
+|-
+| 33 || [5.0.0+] DeleteCacheStorage
+|-
+| 34 || [5.0.0+] GetCacheStorageSize
+|-
+| 35 || [6.0.0+] [[#CreateSaveDataFileSystemWithHashSalt]]
+|-
+| 36 || [9.0.0+] OpenHostFileSystemWithOption
+|-
+| 37 || [14.0.0+] CreateSaveDataFileSystemWithCreationInfo2
+|-
+| 51 || [[#OpenSaveDataFileSystem]]
+|-
+| 52 || [[#OpenSaveDataFileSystemBySystemSaveDataId]]
+|-
+| 53 || [2.0.0+] [[#OpenReadOnlySaveDataFileSystem]]
+|-
+| 57 || [3.0.0+] [[#ReadSaveDataFileSystemExtraDataBySaveDataSpaceId]]
+|-
+| 58 || [[#ReadSaveDataFileSystemExtraData]]
+|-
+| 59 || [2.0.0+] WriteSaveDataFileSystemExtraData
|-
|-
−| 2 || MountRomFs
+| 60 || [[#OpenSaveDataInfoReader]]
|-
|-
−| 7 || Returns an [[#IFileSystem]].
+| 61 || [[#OpenSaveDataInfoReaderBySaveDataSpaceId]]
|-
|-
−| 8 || MountContent
+| 62 || [5.0.0+] OpenSaveDataInfoReaderOnlyCacheStorage
|-
|-
−| 11 || Returns an [[#IFileSystem]].
+| 64 || [5.0.0+] OpenSaveDataInternalStorageFileSystem
|-
|-
−| 12 || OpenBisPartition
+| 65 || [5.0.0+] UpdateSaveDataMacForDebug
|-
|-
−| 13 ||
+| 66 || [5.0.0+] WriteSaveDataFileSystemExtraDataWithMask
|-
|-
−| 17 || OpenHostFileSystemImpl
+| 67 || [6.0.0+] [[#FindSaveDataWithFilter]]
|-
|-
−| 18 || MountSdCard
+| 68 || [6.0.0+] [[#OpenSaveDataInfoReaderWithFilter]]
|-
|-
−| 19 || FormatSdCard
+| 69 || [8.0.0+] ReadSaveDataFileSystemExtraDataBySaveDataAttribute
|-
|-
−| 21 || DeleteSaveData
+| 70 || [8.0.0+] WriteSaveDataFileSystemExtraDataWithMaskBySaveDataAttribute
|-
|-
−| 22 ||
+| 71 || [10.0.0+] ReadSaveDataFileSystemExtraDataWithMaskBySaveDataAttribute
|-
|-
−| 23 || CreateSystemSaveData
+| 80 || OpenSaveDataMetaFile
|-
|-
−| 24 || RegisterSaveDataAtomicDeletion
+| 81 || [4.0.0+] [[#OpenSaveDataTransferManager]]
|-
|-
−| 25 ||
+| 82 || [5.0.0+] [[#OpenSaveDataTransferManagerVersion2]]
|-
|-
−| 26 || FormatSdCardDryRun
+| 83 || [6.0.0+] [[#OpenSaveDataTransferProhibiter]]
|-
|-
−| 27 ||
+| 84 || [6.0.0+] [[#ListAccessibleSaveDataOwnerId]]
|-
|-
−| 30 ||
+| 85 || [9.0.0+] [[#OpenSaveDataTransferManagerForSaveDataRepair]]
|-
|-
−| 31 || MountGameCardPartition
+| 86 || [10.0.0+] [[#OpenSaveDataMover]]
|-
|-
−| 51 || Returns an [[#IFileSystem]].
+| 87 || [11.0.0+] [[#OpenSaveDataTransferManagerForRepair]]
|-
|-
−| 52 || MountSystemSaveData
+| 100 || OpenImageDirectoryFileSystem
|-
|-
−| 53 || Returns an [[#IFileSystem]].
+| 101 || [11.0.0+] OpenBaseFileSystem
|-
|-
−| 58 || ReadSaveDataFileSystemExtraData
+| 102 || [12.0.0+] FormatBaseFileSystem
|-
|-
−| 59 ||
+| 110 || [[#OpenContentStorageFileSystem]]
|-
|-
−| 60 || Returns an [[#ISaveDataInfoReader]].
+| 120 || [6.0.0-9.2.0] [[#OpenCloudBackupWorkStorageFileSystem]]
|-
|-
−| 61 || OpenSaveDataIterator
+| 130 || [7.0.0+] [[#OpenCustomStorageFileSystem]]
|-
|-
−| 80 || Returns an [[#IFile]].
+| 200 || OpenDataStorageByCurrentProcess
|-
|-
−| 100 || MountImageDirectory
+| 201 || [3.0.0+] OpenDataStorageByProgramId
|-
|-
−| 110 || Returns an [[#IFileSystem]].
+| 202 || [[#OpenDataStorageByDataId]]
|-
|-
−| 200 || OpenRomFsStorage
+| 203 || OpenPatchDataStorageByCurrentProcess
|-
|-
−| 202 || OpenDataStorageByDataId
+| 204 || [7.0.0+] [[#OpenDataFileSystemWithProgramIndex]]
|-
|-
−| 203 || Returns an [[#IStorage]].
+| 205 || [7.0.0+] [[#OpenDataStorageWithProgramIndex]]
+|-
+| 206 || [13.0.0+] OpenDataStorageByPath
+|-
+| 207 || [15.0.0+] OpenDataFileSystemByDataId
|-
|-
| 400 || [[#OpenDeviceOperator]]
| 400 || [[#OpenDeviceOperator]]
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| 501 || [[#OpenGameCardDetectionEventNotifier]]
| 501 || [[#OpenGameCardDetectionEventNotifier]]
|-
|-
−| 600 ||
+| 503 || [19.0.0+] OpenGameCardAwakenReadyEventNotifier
+|-
+| 510 || [5.0.0+] OpenSystemDataUpdateEventNotifier
+|-
+| 511 || [5.0.0+] NotifySystemDataUpdateEvent
+|-
+| 520 || [6.0.0+] [[#SimulateDeviceDetectionEvent]]
+|-
+| 600 || [1.0.0-3.0.2] SetCurrentPosixTime
+|-
+| 601 || QuerySaveDataTotalSize
+|-
+| 602 || [[#VerifySaveDataFileSystem]]
+|-
+| 603 || CorruptSaveDataFileSystem
+|-
+| 604 || CreatePaddingFile
+|-
+| 605 || DeleteAllPaddingFiles
+|-
+| 606 || [2.0.0+] GetRightsId
+|-
+| 607 || [2.0.0+] RegisterExternalKey
+|-
+| 608 || [2.0.0+] UnregisterAllExternalKey
+|-
+| 609 || [2.0.0-15.0.1] GetRightsIdByPath
+|-
+| 610 || [3.0.0+] GetRightsIdAndKeyGenerationByPath
+|-
+| 611 || [4.0.0+] SetCurrentPosixTimeWithTimeDifference
+|-
+| 612 || [4.0.0+] GetFreeSpaceSizeForSaveData
+|-
+| 613 || [4.0.0+] VerifySaveDataFileSystemBySaveDataSpaceId
+|-
+| 614 || [4.0.0+] CorruptSaveDataFileSystemBySaveDataSpaceId
+|-
+| 615 || [5.0.0+] QuerySaveDataInternalStorageTotalSize
|-
|-
−| 601 ||
+| 616 || [6.0.0+] [[#GetSaveDataCommitId]]
|-
|-
−| 602 ||
+| 617 || [7.0.0+] UnregisterExternalKey
|-
|-
−| 603 ||
+| 618 || [17.0.0+] GetProgramId
|-
|-
−| 604 ||
+| 620 || [2.0.0+] [[#SetSdCardEncryptionSeed]]
|-
|-
−| 605 ||
+| 630 || [4.0.0+] SetSdCardAccessibility
|-
|-
−| 606 ||
+| 631 || [4.0.0+] IsSdCardAccessible
|-
|-
−| 607 || RegisterExternalKey
+| 632 || [19.0.0+] TestExternalKey
|-
|-
−| 608 || UnregisterExternalKey
+| 640 || [4.0.0-7.0.1] IsSignedSystemPartitionOnSdCardValid
|-
|-
−| 609 ||
+| 700 || [5.0.0+] [[#OpenAccessFailureDetectionEventNotifier]]
|-
|-
−| 620 ||
+| 701 || [5.0.0+] GetAccessFailureDetectionEvent
|-
|-
−| 800 ||
+| 702 || [5.0.0+] IsAccessFailureDetected
|-
|-
−| 1000 ||
+| 710 || [5.0.0+] ResolveAccessFailure
|-
|-
−| 1001 ||
+| 720 || [5.0.0+] AbandonAccessFailure
|-
|-
−| 1002 ||
+| 800 || [2.0.0+] GetAndClearErrorInfo
+|-
+| 810 || [7.0.0+] RegisterProgramIndexMapInfo
+|-
+| 820 || [19.0.0+] GetContentStorageInfoIndex
+|-
+| 1000 || [1.0.0-9.2.0] SetBisRootForHost
+|-
+| 1001 || [[#SetSaveDataSize]]
+|-
+| 1002 || [[#SetSaveDataRootPath]]
|-
|-
| 1003 || DisableAutoSaveDataCreation
| 1003 || DisableAutoSaveDataCreation
|-
|-
−| 1004 ||
+| 1004 || [[#SetGlobalAccessLogMode]]
+|-
+| 1005 || [[#GetGlobalAccessLogMode]]
+|-
+| 1006 || [[#OutputAccessLogToSdCard]]
+|-
+| 1007 || [4.0.0+] RegisterUpdatePartition
+|-
+| 1008 || [4.0.0+] OpenRegisteredUpdatePartition
+|-
+| 1009 || [4.0.0+] GetAndClearMemoryReportInfo
+|-
+| 1010 || [5.1.0-6.2.0] SetDataStorageRedirectTarget
+|-
+| 1011 || [7.0.0+] [[#GetProgramIndexForAccessLog]]
+|-
+| 1012 || [9.0.0+] GetFsStackUsage
+|-
+| 1013 || [9.0.0+] UnsetSaveDataRootPath
+|-
+| 1014 || [10.0.0-10.2.0] OutputMultiProgramTagAccessLog
+|-
+| 1016 || [11.0.0+] FlushAccessLogOnSdCard
+|-
+| 1017 || [11.0.0+] OutputApplicationInfoAccessLog
+|-
+| 1018 || [13.0.0+] SetDebugOption
+|-
+| 1019 || [13.0.0+] UnsetDebugOption
+|-
+| 1020 || [18.0.0+] OpenMemoryStressor
+|-
+| 1100 || [4.0.0-17.0.1] OverrideSaveDataTransferTokenSignVerificationKey
+|-
+| 1101 || [18.0.0+] OverrideSaveDataTransferKeyForTest
+|-
+| 1110 || [6.0.0+] CorruptSaveDataFileSystemByOffset
+|-
+| 1200 || [6.0.0+] [[#OpenMultiCommitManager]]
+|-
+| 1300 || [10.0.0+] [[#OpenBisWiper]]
+|-
+| 1400 || [15.0.0+] NotifyErrorContextServiceReady
+|}
+== Permissions ==
+Every time permissions are checked, the process registration [[#fsp-pr]] is loaded using the session processID. The permission data is populated with data from the [[NPDM]].
+If the processID is <= 6 (which happens only for built-in sysmodules), it will use a hardcoded registration data. The default mask in this case is 0x8000000000000000.
+Note that the functions check whether or not at least one bit is set in the mask. This means that, you don't need to set 0xFFFFFFFFFFFFFFFF to get all permissions: it suffices to set 0x8000000000000000.
+If the code were to request an invalid input type, panic. But this never happens.
+The output values for [[#ReadWrite]] CanMountRegisteredUpdatePartition and [[#Call]] CanRegisterUpdatePartition are masked with the cached value of [[SMC#IsDebugMode|DebugMode]].
+=== ReadWrite ===
+{| class="wikitable" border="1"
+|-
+! AccessibilityType || Name || Mask || Permission || Used by
+|-
+| 0x0 || CanMountLogo || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
+|-
+| 0x1 || CanMountContentMeta || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
+|-
+| 0x2 || CanMountContentControl || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
+|-
+| 0x3 || CanMountContentManual || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
+|-
+| 0x4 || CanMountContentData || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
+|-
+| 0x5 || CanMountApplicationPackage || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
+|-
+| 0x6 || CanMountSaveDataStorage || 0x8000000000000000 || RW ||
+|-
+| 0x7 || CanMountContentStorage || 0x8000000000000800 || RW || [[#OpenContentStorageFileSystem]]
+|-
+| 0x8 || CanMountImageAndVideoStorage ||0x8000000000001000 || RW || [[#OpenImageDirectoryFileSystem]]
+|-
+| 0x9 || CanMountCustomStorage0 || 0x8000000000000000 || RW || OpenCustomStorageFileSystem
+|-
+| 0xA || CanMountBisCalibrationFile || 0x8000000000000084 || RW || [[#OpenBisFileSystem]]
+|-
+| 0xB || CanMountBisSafeMode || 0x8000000000000080 || RW || [[#OpenBisFileSystem]]
+|-
+| 0xC || CanMountBisUser || 0x8000000000008080 || RW || [[#OpenBisFileSystem]]
+|-
+| 0xD || CanMountBisSystem || 0x8000000000008080 || RW || [[#OpenBisFileSystem]]
+|-
+| 0xE || CanMountBisSystemProperEncryption || 0x8000000000000080 || RW || [[#OpenBisFileSystem]]
+|-
+| 0xF || CanMountBisSystemProperPartition || 0x8000000000000080 || RW || [[#OpenBisFileSystem]]
+|-
+| 0x10 || CanMountSdCard || 0xC000000000200000 || RW || [[#OpenSdCardFileSystem]]
+|-
+| 0x11 || CanMountGameCard || 0x8000000000000010 || R- || [[#OpenGameCardFileSystem]]
+|-
+| 0x12 || CanMountDeviceSaveData || 0x8000000000040020 || RW || [[#OpenSaveDataFileSystem]]
+|-
+| 0x13 || CanMountSystemSaveData || 0x8000000000000028 || RW || [[#OpenSaveDataFileSystemBySystemSaveDataId]]
+|-
+| 0x14 || CanMountOthersSaveData || 0x8000000000000020 || RW || [[#OpenSaveDataFileSystem]]
+|-
+| 0x15 || CanMountOthersSystemSaveData || 0x8000000000000020 || RW || [[#OpenSaveDataFileSystemBySystemSaveDataId]]
+|-
+| 0x16 || CanOpenBisPartitionBootPartition1Root || 0x8000000000010082 || RW || [[#OpenBisStorage]]
+|-
+| 0x17 || CanOpenBisPartitionBootPartition2Root || 0x8000000000010080 || RW || [[#OpenBisStorage]]
+|-
+| 0x18 || CanOpenBisPartitionUserDataRoot || 0x8000000000000080 || RW || [[#OpenBisStorage]]
+|-
+| 0x19 || CanOpenBisPartitionBootConfigAndPackage2Part1 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
+|-
+| 0x1A || CanOpenBisPartitionBootConfigAndPackage2Part2 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
+|-
+| 0x1B || CanOpenBisPartitionBootConfigAndPackage2Part3 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
+|-
+| 0x1C || CanOpenBisPartitionBootConfigAndPackage2Part4 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
+|-
+| 0x1D || CanOpenBisPartitionBootConfigAndPackage2Part5 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
+|-
+| 0x1E || CanOpenBisPartitionBootConfigAndPackage2Part6 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
+|-
+| 0x1F || CanOpenBisPartitionCalibrationBinary || 0x8000000000000084 || RW || [[#OpenBisStorage]]
+|-
+| 0x20 || CanOpenBisPartitionCalibrationFile || 0x8000000000000084 || RW || [[#OpenBisStorage]]
+|-
+| 0x21 || CanOpenBisPartitionSafeMode || 0x8000000000000080 || RW || [[#OpenBisStorage]]
+|-
+| 0x22 || CanOpenBisPartitionUser || 0x8000000000000080 || RW || [[#OpenBisStorage]]
+|-
+| 0x23 || CanOpenBisPartitionSystem || 0x8000000000000080 || RW || [[#OpenBisStorage]]
+|-
+| 0x24 || CanOpenBisPartitionSystemProperEncryption || 0x8000000000000080 || RW || [[#OpenBisStorage]]
+|-
+| 0x25 || CanOpenBisPartitionSystemProperPartition || 0x8000000000000080 || RW || [[#OpenBisStorage]]
+|-
+| 0x26 || CanOpenBisPartitionDeviceTreeBlob || 0x8000002000000080 || RW || [[#OpenBisStorage]]
+|-
+| [3.0.0+] 0x27 || CanOpenSdCardStorage || 0xC000000000200000 || RW ||
+|-
+| [3.0.0+] 0x28 || CanOpenGameCardStorage || 0x8000000000000100 || RW || [[#OpenGameCardStorage]], [[#EraseGameCard]] (bit1), [[#WriteToGameCard]] (bit1), [[#GetGameCardErrorInfo]] (bit1), [[#EraseAndWriteParamDirectly]] (bit1), [[#ReadParamDirectly]] (bit1), [[#ForceEraseGameCard]] (bit1)
+|-
+| [4.0.0+] 0x29 || CanMountSystemDataPrivate || 0x8000000000100008 || R- || [[#OpenFileSystem]], [[#OpenDataStorageByDataId]]
+|-
+| [5.0.0+] 0x2A || CanMountHost || 0xC000000000400000 || RW || [[#OpenHostFileSystem]]
+|-
+| [6.0.0+] 0x2B || CanMountRegisteredUpdatePartition || 0x8000000000010000 || R- || [[#OpenRegisteredUpdatePartition]]
+|-
+| [7.0.0+] 0x2C || CanOpenSaveDataInternalStorage || 0x8000000000000000 || RW || [[#OpenSaveDataInternalStorageFileSystem]]
+|-
+| [7.0.0+] 0x2D || CanMountTemporaryDirectory || 0xC000000000000000 || RW ||
|-
|-
−| 1005 || GetGlobalAccessLogMode
+| [11.0.0+] 0x2E || CanMountAllBaseFilesystem || 0x8000000000000000 || RW || OpenBaseFileSystem
|-
|-
−| 1006 || OutputAccessLogToSdCard
+| [15.0.0+] 0x2F || CanNotMount || 0x0000000000000000 || -- || OpenCustomStorageFileSystem
|}
|}
−== Initialize ==
+=== Call ===
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
−! Word || Value
+! OperationType || Name || Mask || Used by
+|-
+| 0x0 || CanInvalidateBisCache || 0x8000000000000080 || [[#InvalidateBisCache]]
+|-
+| 0x1 || CanEraseMmc || 0x8000000000000080 || EraseMmc
+|-
+| 0x2 || CanGetGameCardDeviceCertificate || 0x8000000000000010 || GetGameCardDeviceCertificate
+|-
+| 0x3 || CanGetGameCardIdSet || 0x8000000000000010 || GetGameCardIdSet
+|-
+| 0x4 || CanFinalizeGameCardDriver || 0x8000000000000200 || FinalizeGameCardDriver
+|-
+| 0x5 || CanGetGameCardAsicInfo || 0x8000000000000200 || GetGameCardAsicInfo
+|-
+| 0x6 || CanGetGameCardAsicCertificate || 0x8000000000000200 || GetGameCardAsicCertificate
+|-
+| 0x7 || CanCreateSaveData || 0x8000000000002020 || [[#CreateSaveDataFileSystem]]
+|-
+| 0x8 || CanDeleteSaveData || 0x8000000000000060 || [[#DeleteSaveDataFileSystem]], RegisterSaveDataFileSystemAtomicDeletion
+|-
+| 0x9 || CanCreateSystemSaveData || 0x8000000000000028 || CreateSaveDataFileSystemBySystemSaveDataId
+|-
+| 0xA || CanCreateOthersSystemSaveData || 0x8000000000000020 || CreateSaveDataFileSystemBySystemSaveDataId
+|-
+| 0xB || CanDeleteSystemSaveData || 0x8000000000004028 || [[#DeleteSaveDataFileSystem]], RegisterSaveDataFileSystemAtomicDeletion
+|-
+| 0xC || CanOpenSaveDataInfoReader || 0x8000000000000060 || [[#OpenSaveDataInfoReaderBySaveDataSpaceId]], [[#OpenSaveDataInfoReader]]
+|-
+| 0xD || CanOpenSaveDataInfoReaderForSystem || 0x8000000000004020 || [[#OpenSaveDataInfoReaderBySaveDataSpaceId]], [[#OpenSaveDataInfoReader]]
+|-
+| 0xE || CanOpenSaveDataInfoReaderForInternal || 0x8000000000000040 || [[#OpenSaveDataInfoReaderWithFilter]]
+|-
+| 0xF || CanOpenSaveDataMetaFile || 0x8000000000020000 || OpenSaveDataMetaFile
+|-
+| 0x10 || CanSetCurrentPosixTime || 0x8000000000000400 || SetCurrentPosixTime, SetCurrentPosixTimeWithTimeDifference
+|-
+| 0x11 || CanReadSaveDataFileSystemExtraData || 0x8000000000004060 || [[#ReadSaveDataFileSystemExtraData]]
+|-
+| 0x12 || CanSetGlobalAccessLogMode || 0x8000000000080000 || [[#SetGlobalAccessLogMode]]
+|-
+| 0x13 || CanSetSpeedEmulationMode || 0x8000000000080000 || SetSpeedEmulationMode
+|-
+| 0x14 || CanDebug || 0xC000000000000000 ||
+|-
+| 0x15 || CanFillBis || 0xC000000000800000 || CreatePaddingFile, DeleteAllPaddingFiles
+|-
+| [2.0.0+] 0x16 || CanCorruptSaveData || 0xC000000001000000 || CorruptSaveDataFileSystem, CorruptSaveDataFileSystemBySaveDataSpaceId
+|-
+| [2.0.0+] 0x17 || CanCorruptSystemSaveData || 0x8000000001000060 || CorruptSaveDataFileSystem, CorruptSaveDataFileSystemBySaveDataSpaceId
+|-
+| [2.0.0+] 0x18 || CanVerifySaveData || 0x8000000000000060 || [[#VerifySaveDataFileSystem]], VerifySaveDataFileSystemBySaveDataSpaceId
+|-
+| [2.0.0+] 0x19 || CanDebugSaveData || 0xC000000002000000 || [[#CreateSaveDataFileSystem]], [[#OpenSaveDataFileSystem]], [[#SetSaveDataRootPath]]
+|-
+| [2.0.0+] 0x1A || CanFormatSdCard || 0x8000000004000000 || FormatSdCardFileSystem
+|-
+| [3.0.0+] 0x1B || CanGetRightsId || 0x8000000008000000 || GetRightsId, GetRightsIdAndKeyGenerationByPath, GetRightsIdByPath
+|-
+| [3.0.0+] 0x1C || CanRegisterExternalKey || 0x8000000010000000 || RegisterExternalKey, UnregisterAllExternalKey
+|-
+| [4.0.0+] 0x1D || CanSetEncryptionSeed || 0x8000000000000800 || [[#SetSdCardEncryptionSeed]]
+|-
+| [4.0.0+] 0x1E || CanWriteSaveDataFileSystemExtraDataTimeStamp || 0x8000000000000020 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
+|-
+| [4.0.0+] 0x1F || CanWriteSaveDataFileSystemExtraDataFlags || 0x8000000000004020 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
+|-
+| [4.0.0+] 0x20 || CanWriteSaveDataFileSystemExtraDataCommitId || 0x8000000000000020 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
+|-
+| [5.0.0+] 0x21 || CanWriteSaveDataFileSystemExtraDataAll || 0x8000000000000000 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
+|-
+| [5.0.0+] 0x22 || CanExtendSaveData || 0x8000000000002020 || ExtendSaveDataFileSystem
+|-
+| [5.0.0+] 0x23 || CanExtendSystemSaveData || 0x8000000000000028 || ExtendSaveDataFileSystem
+|-
+| [5.0.0+] 0x24 || CanExtendOthersSystemSaveData || 0x8000000000000020 || ExtendSaveDataFileSystem
+|-
+| [5.0.0+] 0x25 || CanRegisterUpdatePartition || 0x8000000020000000 || RegisterUpdatePartition
+|-
+| [5.0.0+] 0x26 || CanOpenSaveDataTransferManager || 0x8000000040000000 || [[#OpenSaveDataTransferManager]]
+|-
+| [5.0.0+] 0x27 || CanOpenSaveDataTransferManagerVersion2 || 0x8000000200000000 || [[#OpenSaveDataTransferManagerVersion2]]
+|-
+| [5.0.0+] 0x28 || CanOpenSaveDataTransferManagerForSaveDataRepair || 0x8000000200000000 || OpenSaveDataTransferManagerForSaveDataRepair
+|-
+| [5.0.0+] 0x29 || CanOpenSaveDataTransferManagerForSaveDataRepairTool || 0x8000000000000000 || OpenSaveDataTransferManagerForSaveDataRepair
+|-
+| [5.0.0+] 0x2A || CanOpenOpenSaveDataTransferProhibiter || 0x8000000200002000 || [[#OpenSaveDataTransferProhibiter]]
+|-
+| [5.0.0+] 0x2B || CanOpenSaveDataMover || 0x8000001000000000 || [[#OpenSaveDataMover]]
+|-
+| [5.0.0+] 0x2C || CanOpenBisWiper || 0x8000000000000800 || [[#OpenBisWiper]]
+|-
+| [5.0.0+] 0x2D || CanListAccessibleSaveDataOwnerId || 0x8000000240002000 || [[#ListAccessibleSaveDataOwnerId]]
+|-
+| [5.0.0+] 0x2E || CanControlMmcPatrol || 0x8000000000000000 || SuspendMmcPatrol, ResumeMmcPatrol
+|-
+| [5.0.0+] 0x2F || CanOverrideSaveDataTransferTokenSignVerificationKey || 0x8000000000000000 || OverrideSaveDataTransferTokenSignVerificationKey
+|-
+| [5.1.0+] 0x30 || CanOpenSdCardDetectionEventNotifier || 0x8000000080200000 || [[#OpenSdCardDetectionEventNotifier]]
+|-
+| [6.0.0+] 0x31 || CanOpenGameCardDetectionEventNotifier || 0x8000000080000110 || [[#OpenGameCardDetectionEventNotifier]]
+|-
+| [6.0.0+] 0x32 || CanOpenSystemDataUpdateEventNotifier || 0x8000000000100008 || OpenSystemDataUpdateEventNotifier
+|-
+| [6.0.0+] 0x33 || CanNotifySystemDataUpdateEvent || 0x8000000000010000 || NotifySystemDataUpdateEvent
+|-
+| [6.0.0+] 0x34 || CanOpenAccessFailureDetectionEventNotifier || 0x8000000100000000 || [[#OpenAccessFailureDetectionEventNotifier]]
+|-
+| [6.0.0+] 0x35 || CanGetAccessFailureDetectionEvent || 0x8000000100000000 || GetAccessFailureDetectionEvent
+|-
+| [6.0.0+] 0x36 || CanIsAccessFailureDetected || 0x8000000100000000 || IsAccessFailureDetected
+|-
+| [6.0.0+] 0x37 || CanResolveAccessFailure || 0x8000000100000000 || ResolveAccessFailure
+|-
+| [6.0.0+] 0x38 || CanAbandonAccessFailure || 0x8000000100000000 || AbandonAccessFailure
+|-
+| [8.0.0+] 0x39 || CanQuerySaveDataInternalStorageTotalSize || 0x8000000040000000 || QuerySaveDataInternalStorageTotalSize
+|-
+| [9.0.0+] 0x3A || CanGetSaveDataCommitId || 0x8000000200000020 || [[#GetSaveDataCommitId]]
+|-
+| [9.0.0+] 0x3B || CanSetSdCardAccessibility || 0x8000000000200000 || SetSdCardAccessibility
+|-
+| [9.0.0+] 0x3C || CanSimulateDevice || 0x4000000000000000 || SimulateDeviceDetectionEvent, SetSimulationEvent, ClearSimulationEvent
+|-
+| [9.0.0+] 0x3D || CanCreateSaveDataWithHashSalt || 0x8000000000000000 || [[#CreateSaveDataFileSystem]], [[#CreateSaveDataFileSystemWithHashSalt]]
+|-
+| [9.0.0+] 0x3E || CanRegisterProgramIndexMapInfo || 0x8000000400000000 || RegisterProgramIndexMapInfo
+|-
+| [9.0.0+] 0x3F || CanChallengeCardExistence || 0x8000000000000010 || ChallengeCardExistence
+|-
+| [9.0.0+] 0x40 || CanCreateOwnSaveData || 0x8000000800000000 || [[#CreateSaveDataFileSystem]], CreateSaveDataFileSystemWithHashSalt
+|-
+| [9.0.0+] 0x41 || CanDeleteOwnSaveData || 0x8000000800000000 || [[#DeleteSaveDataFileSystem]]
|-
|-
−| 0 || 0x00000004
+| [10.0.0+] 0x42 || CanReadOwnSaveDataFileSystemExtraData || 0x8000000800000000 || [[#ReadSaveDataFileSystemExtraData]]
|-
|-
−| 1 || 0x8000000E
+| [10.0.0+] 0x43 || CanExtendOwnSaveData || 0x8000000800000000 || ExtendSaveDataFileSystem
|-
|-
−| 2 || 0x00000001
+| [10.2.0+] 0x44 || CanOpenOwnSaveDataTransferProhibiter || 0x8000000800000000 || [[#OpenSaveDataTransferProhibiter]]
−|- style="border-top: double"
−| 0 || Always. 0x18000001
|-
|-
−| 1 || Always. 0
+| [11.0.0+] 0x45 || CanFindOwnSaveDataWithFilter || 0x8000000800000000 || [[#FindSaveDataWithFilter]]
|-
|-
−| 2 || "SCFI"
+| [13.0.0+] 0x46 || CanOpenSaveDataTransferManagerForRepair || 0x8000000000000020 || [[#OpenSaveDataTransferManagerForRepair]]
|-
|-
−| 3 || 0x00000001
+| [13.0.0+] 0x47 || CanSetDebugConfiguration || 0x8000000000000000 || SetDebugOption, UnsetDebugOption
|-
|-
−| 4 || Always 0.
+| [15.0.0+] 0x48 || CanOpenDataStorageByPath || 0x8000000000000000 || OpenDataStorageByPath
+|-
+| [17.0.0+] 0x49 || CanNotifyErrorContextServiceReady || 0x8000004000000000 || NotifyErrorContextServiceReady
+|-
+| [17.0.0+] 0x4A || CanGetProgramId || 0x8000000008000000 || GetProgramId
|}
|}
+
+== OpenFileSystem ==
+Takes a type-0x19 input buffer containing a [[#FspPath]] and an input [[#FileSystemProxyType]]. Returns an [[#IFileSystem]].
+
+[2.0.0+] This function was removed.
+
+== SetCurrentProcess ==
+Takes an input u64 ProcessId. No output.
+
+== OpenFileSystemWithPatch ==
+Takes an input [[#FileSystemProxyType]] and an input [[NCM_services#ProgramId|ProgramId]]. Returns an [[#IFileSystem]].
+
+Web-applet loads the [[#FileSystemProxyType]] (which must be '''Manual''') from u32_table[inparam].
+
+Note: web-applet strings refer to both this cmd and [[#OpenFileSystemWithId]] as "MountContent", but official nn_sf_sync symbols use "OpenXX" names.
+
+== OpenFileSystemWithIdObsolete ==
+Takes a type-0x19 input buffer containing a [[#FspPath]], an input [[#FileSystemProxyType]] and an input [[NCM_services#ProgramId|ProgramId]]. Returns an [[#IFileSystem]].
+
+The [[#IFileSystem]] must be '''Meta''' if the NCA type is 0.
+
+The input buffer is the output string path from [[NS_Services#GetApplicationContentPath|GetApplicationContentPath]].
+
+May return errors when attempting to access NCA-paths for an update-title with a gamecard, when the gamecard isn't inserted. May return error 0x7D402 in some cases with update-titles. Non-val2 in32 values with NCA-type1 are unusable, even for normal titles.
+
+The official "MountApplicationPackage" func uses this with in64=0 and [[#FileSystemProxyType]] '''Package'''.
+
+After the [[#FileSystemProxyType]] specific permissions are checked, it then gets the func retval for permissions-type 0x25 and func0.
+
+When [[#FileSystemProxyType]] is '''Meta''', it uses in64=0xffffffffffffffff internally, otherwise it checks if in64 is set to 0xffffffffffffffff then throws an error if so. When the in64 used internally is not 0xffffffffffffffff, it's compared with the NCA [[NCM_services#ProgramId|ProgramId]], then an error is thrown on mismatch.
+
+== OpenFileSystemWithId ==
+Takes a type-0x19 input buffer containing a [[#FspPath]], an input [[#ContentAttributes]], an input [[#FileSystemProxyType]] and an input [[NCM_services#ProgramId|ProgramId]]. Returns an [[#IFileSystem]].
+
+== OpenBisFileSystem ==
+Takes a type-0x19 input buffer containing a [[#FspPath]] and an input [[#BisPartitionId]]. Returns an [[#IFileSystem]].
+
+Official user-process code sets instr[0] = 0 normally.
+
+Only partitionIDs for FAT partitions are usable with this, otherwise error 0x2EE202 is returned. Seems to be about the same as [[#OpenBisStorage]] except this mounts the partition filesystem instead of allowing direct access to the partition sectors.
+
+== OpenBisStorage ==
+Takes a u32 partition ID, returns 0x2EE202 for partitions which do not exist, 0x320002 for partitions which cannot be opened and a valid [[#IStorage]] handle otherwise.
+
+== InvalidateBisCache ==
+Seems to invalidate the Bis cache for MBR/GPT after overwriting that data via the OpenBisStorage IStorage. Used by [[SystemInitializer]].
+
+== DeleteSaveDataFileSystem ==
+Takes an input u64.
+
+== CreateSaveDataFileSystem ==
+Takes a 0x40-byte [[#SaveDataAttribute]], a 0x40-byte [[#SaveDataCreationInfo]], and a 0x10-byte input struct which governs creation of a saveMeta file.
+
+Only the first 0x5-bytes in the 0x10-byte struct are initialized: all-zero when automatically creating savedata during savecommon mount by official user-processes. In the dedicated save-creation code in official user-processes: +0 u32 = 0x40060 meta file size, +4 u8 = 1 meta index which dictates meta file name.
+
+Creates non-system savedata.
+
+== CreateSaveDataFileSystemBySystemSaveDataId ==
+Takes a 0x40-byte [[#SaveDataAttribute]] and a 0x40-byte [[#SaveDataCreationInfo]].
+
+Creates savedata in the SYSTEM [[Flash_Filesystem|NAND]] partition.
+
+== OpenGameCardStorage ==
+Takes two input u32s (gamecard handle, partition ID), and returns an [[#IStorage]] for the [[Gamecard_Format|partition]].
+
+== OpenGameCardFileSystem ==
+Takes two input u32s, with the second u32 located at +4 in rawdata after the first u32. Returns an [[#IFileSystem]].
+
+Mounts a [[Gamecard_Partition|gamecard partition]].
+
+== CreateSaveDataFileSystemWithHashSalt ==
+Takes a total of 0xB0-bytes of input, no output.
+
+== OpenSaveDataFileSystem ==
+Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte [[#SaveDataAttribute]]. Official user-process code is only known to use value 1 for the u8.
+
+Returns an [[#IFileSystem]].
+
+Permissions aren't checked until the specified save is successfully found.
+
+Only one process (specifically only one [[#IFileSystem]] session) can mount a given savedata at any given time (this includes SystemSaveData).
+
+== OpenSaveDataFileSystemBySystemSaveDataId ==
+Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte [[#SaveDataAttribute]]. Web-applet only uses value0 for the input u8.
+
+Returns an [[#IFileSystem]].
+
+Mounts savedata in the SYSTEM [[Flash_Filesystem|NAND]] partition.
+
+== OpenReadOnlySaveDataFileSystem ==
+Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte [[#SaveDataAttribute]], and returns an [[#IFileSystem]].
+
+Mounts SaveData as ReadOnly.
+
+== ReadSaveDataFileSystemExtraDataBySaveDataSpaceId ==
+Takes an input u8 [[#SaveDataSpaceId]], an input u64 saveID, and a type-0x6 output buffer containing the [[#SaveDataFileSystemExtraData]].
+
+== ReadSaveDataFileSystemExtraData ==
+Takes an input u64 saveID and a type-0x6 output buffer containing the [[#SaveDataFileSystemExtraData]].
+
+== OpenSaveDataInfoReader ==
+No input, returns an output [[#ISaveDataInfoReader]].
+
+== OpenSaveDataInfoReaderBySaveDataSpaceId ==
+Takes an input u8 [[#SaveDataSpaceId]], returns an output [[#ISaveDataInfoReader]].
+
+== FindSaveDataWithFilter ==
+Takes a total of 0x50-bytes of input, returns 8-bytes of output and a type-0x6 output buffer.
+
+== OpenSaveDataInfoReaderWithFilter ==
+Takes a total of 0x50-bytes of input, returns an [[#ISaveDataInfoReader]].
+
+== OpenSaveDataTransferManager ==
+No input, returns an [[#ISaveDataTransferManager]].
+
+== OpenSaveDataTransferManagerVersion2 ==
+No input, returns an [[#ISaveDataTransferManagerWithDivision]].
+
+== OpenSaveDataTransferProhibiter ==
+Takes an input u64, returns an [[#ISaveDataTransferProhibiter]].
+
+== ListAccessibleSaveDataOwnerId ==
+Takes a total of 0x10-bytes of input, returns 4-bytes of output and a type-0x6 output buffer.
+
+== OpenSaveDataTransferManagerForSaveDataRepair ==
+No input, returns an output [[#ISaveDataTransferManagerForSaveDataRepair]].
+
+== OpenSaveDataMover ==
+Takes 2 input [[#SaveDataSpaceId]], an input u64 size and a TransferMemory handle. Returns an output [[#ISaveDataMover]].
+
+== OpenSaveDataTransferManagerForRepair ==
+No input, returns an output [[#ISaveDataTransferManagerForRepair]].
+
+== OpenContentStorageFileSystem ==
+Takes a [[#ContentStorageId]]. Invalid values return 0x2EE202.
+
+Returns an [[#IFileSystem]] with NCA files. The read data from these files is identical to the data read by [[NCM_services#ReadContentIdFile]].
+
+== OpenCloudBackupWorkStorageFileSystem ==
+Takes 4-bytes of input, returns an [[#IFileSystem]].
+
+== OpenCustomStorageFileSystem ==
+Takes a [[#CustomStorageId]]. Invalid values return 0x2EE202.
+
+Returns an [[#IFileSystem]] from either User:/CustomStorage0 or Sdcard:/Nintendo/CustomStorage0. If on the SD card, an AesXtsFileSystem is created using a key source specifically for custom storage.
+
+== OpenDataStorageByDataId ==
+Takes a [[NCM_services#StorageId|StorageID]] and a [[NCM_services#DataId|DataId]].
+
+Returns a [[IPC_Marshalling#Domain_message|domain object ID]] implementing the [[#IStorage]] interface for data archives.
+
+== OpenDataFileSystemWithProgramIndex ==
+Takes an input u8, returns an [[#IFileSystem]].
+
+== OpenDataStorageWithProgramIndex ==
+Takes an input u8, returns an [[#IStorage]].
== OpenDeviceOperator ==
== OpenDeviceOperator ==
Line 145:
Line 768:
== OpenGameCardDetectionEventNotifier ==
== OpenGameCardDetectionEventNotifier ==
This command returns a session to a port implementing the [[#IEventNotifier]] interface.
This command returns a session to a port implementing the [[#IEventNotifier]] interface.
+
+== SimulateDeviceDetectionEvent ==
+Takes a total of 0xC-bytes of input, no output.
+
+== VerifySaveDataFileSystem ==
+Takes an unknown input u64 and a type-0x6 output buffer.
+
+The input u64 high-byte must be non-zero, otherwise an [[Error_codes|error]] is returned(0xE02).
+
+== GetSaveDataCommitId ==
+Takes an input u8 and u64, returns an output u64.
+
+== SetSdCardEncryptionSeed ==
+Takes in the 0x10 byte SD card encryption seed, and loads it into FS-module state.
+
+[[NS_Services|NS]]-module reads the 0x10 bytes from SdCard:/Nintendo/Contents/private, and compares them to the first 0x10 bytes of the ns_appman:/private (in [[Flash_Filesystem#System_Savegames|system savedata]] 0x8000000000000043). If they match, NS calls this command using bytes 0x10-0x20 from ns_appman:/private. The rest of this file (0x1F0 bytes total) is all-zero except for the byte at offset 0x20. This byte is set to 1 by NS if the SD card has been mounted successfully and is subsequently passed to SetSdCardAccessibility.
+
+== OpenAccessFailureDetectionEventNotifier ==
+Takes 8-bytes of input and returns an [[#IEventNotifier]].
+
+[8.0.0+] Now takes an additional 8-bytes of input.
+
+== SetSaveDataSize ==
+Takes two input u64s "size" and "journal_size", and writes them to fsp-srv object member variables.
+
+These variables are normally initialized with 32 MiB (0x2000000) and 16 MiB (0x1000000), respectively.
+
+These variables don't seem to be actually used anywhere else (?)
+
+== SetSaveDataRootPath ==
+Takes an input path, and does snprintf(<fsp-srv object>->m_save_data_root_path, FS_MAX_PATH-1, "/%s", input_path);
+
+This path is normally all-zero. When this path is non-zero, the internal OpenSaveDataFileSystem function will create a DirectorySaveDataFileSystem if the target save is a user-save + a directory exists, instead of the normal savedata filesystem object.
+
+== SetGlobalAccessLogMode ==
+Takes an input u32.
+
+== SetGlobalAccessLogMode ==
+Takes an input u32.
+
+== GetGlobalAccessLogMode ==
+Returns an output u32.
+
+GlobalAccessLogMode is normally 0.
+
+== OutputAccessLogToSdCard ==
+Takes a type-0x5 input buffer.
+
+The input buffer is the string to output to the log. User-processes normally include a newline at the end.
+
+User-processes only use this when the value previously loaded from [[#GetGlobalAccessLogMode]] has bit1 set.
+
+When bit1 in GlobalAccessLogMode is clear, FS-module will just return 0 for OutputAccessLogToSdCard. However even with that set the log doesn't show up SD, unknown why.
+
+The input buffer is written to the "$FsAccessLog:/FsAccessLog.txt" file, where "$FsAccessLog" is the SD-card mount-name. It's written to the current end of the file(appended).
+
+== GetProgramIndexForAccessLog ==
+No input, returns two 32-bit values "version" and "program_index".
+
+== OpenMultiCommitManager ==
+No input, returns an output [[#IMultiCommitManager]].
+
+== OpenBisWiper ==
+Takes an input u64 size and a TransferMemory handle. Returns an output [[#IWiper]].
= IStorage =
= IStorage =
+This is "nn::fssrv::sf::IStorage".
+
+This is the interface for a raw device, usually a block device.
+
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
! Cmd || Name
|-
|-
−| 0 || Read
+| 0 || [[#Read]]
+|-
+| 1 || [[#Write]]
|-
|-
−| 1 ||
+| 2 || [[#Flush]]
|-
|-
−| 2 ||
+| 3 || [[#SetSize]]
|-
|-
−| 3 ||
+| 4 || [[#GetSize]]
|-
|-
−| 4 ||
+| 5 || [4.0.0+] OperateRange
|}
|}
+
+== Read ==
+Takes a type-0x46 buffer, an offset and length.
+
+== Write ==
+Takes a type-0x45 buffer, an offset and length.
+
+== Flush ==
+No input.
+
+== SetSize ==
+Takes a size.
+
+== GetSize ==
+Returns a size.
= IFileSystem =
= IFileSystem =
+This is "nn::fssrv::sf::IFileSystem".
+
There are two main implementations of this interface:
There are two main implementations of this interface:
−* '''RomFS''': Filesystem implementation statically linked in the binary. Uses an [[#IStorage]] interface as underlying raw device.
+* '''nn::fs::fsa::IFileSystem''': The main IFileSystem implementation. Filesystem classes implement this interface, and FS code usually operates on this interface.
−* '''IPC proxy''': Used for all non-RomFS filesystems. In this case, actual filesystem implementation is in the FS process.
+* '''nn::fssrv::sf::IFileSystem''': Used for sending an IFileSystem over IPC. Not used outside of IPC code.
+There are two adapter classes to convert between these interfaces:
+* '''nn::fssrv::detail::FileSystemInterfaceAdapter''': Allows access to an nn::fs::fsa::IFileSystem via the nn::fssrv::sf::IFileSystem interface.
+* '''nn::fs::detail::FileSystemServiceObjectAdapter''': Allows access to an nn::fssrv::sf::IFileSystem via the nn::fs::fsa::IFileSystem interface.
+When the FS process returns a filesystem, it will wrap the filesystem object in a FileSystemInterfaceAdapter to return it over IPC.
+Then when FS application code receives that filesystem, it will wrap the nn::fssrv::sf::IFileSystem object in a FileSystemServiceObjectAdapter before using it.
{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 178:
Line 896:
| 2 || CreateDirectory
| 2 || CreateDirectory
|-
|-
−| 3 || DeleteDirectory?
+| 3 || DeleteDirectory
|-
|-
| 4 || DeleteDirectoryRecursively
| 4 || DeleteDirectoryRecursively
Line 184:
Line 902:
| 5 || RenameFile
| 5 || RenameFile
|-
|-
−| 6 ||
+| 6 || RenameDirectory
+|-
+| 7 || [[#GetEntryType]]
+|-
+| 8 || [[#OpenFile]]
+|-
+| 9 || [[#OpenDirectory]]
+|-
+| 10 || [[#Commit]]
|-
|-
−| 7 || GetEntryType
+| 11 || [[#GetFreeSpaceSize]]
|-
|-
−| 8 || OpenFile
+| 12 || [[#GetTotalSpaceSize]]
|-
|-
−| 9 || OpenDirectory
+| 13 || [3.0.0+] [[#CleanDirectoryRecursively]]
|-
|-
−| 10 || CommitSaveData
+| 14 || [3.0.0+] [[#GetFileTimeStampRaw]]
|-
|-
−| 11 ||
+| 15 || [4.0.0+] QueryEntry
|-
|-
−| 12 ||
+| 16 || [15.0.0+] GetFileSystemAttribute
|}
|}
+
+== GetEntryType ==
+Takes a type-0x9 input buffer for the path and returns [[#DirectoryEntryType]] as an output u32.
+
+== OpenFile ==
+Takes a type-0x19 input buffer for the path, and an u32 '''mode'''. '''mode''' controls how the file is opened, based on which bits are set:
+
+* When bit 0 is set, the file is Readable: you can use the Read operation.
+* When bit 1 is set, the file is Writable: you can use the Write operation.
+* When bit 2 is set, the file is Appendable: unless this bit is set, you will not be able to write beyond the end of a file (such writes will result in an error 0x307202)
+
+== OpenDirectory ==
+Takes a type-0x9 input buffer for the path and an u64 '''filter_flags'''. '''filter_flags''' controls what type of entries are read by the [[#IDirectory]]: bitmask 0x1 = directories, bitmask 0x2 = files.
+
+== Commit ==
+Like [https://3dbrew.org/wiki/FS:ControlArchive 3DS], this has to be used after writing to savedata for the changes to take affect.
+
+== GetFreeSpaceSize ==
+Takes a type-0x9 input buffer for the path and returns an output byte-size u64 for the total free space with this FS.
+
+== GetTotalSpaceSize ==
+Takes a type-0x9 input buffer for the path and returns an output byte-size u64 for the total space available with this FS(free+used).
+
+== CleanDirectoryRecursively ==
+Takes a type-0x9 input buffer for the path and clears the contents of the directory specified in the path.
+
+== GetFileTimeStampRaw ==
+Takes a type-0x19 input buffer for the path and returns a 0x20-byte struct. This contains 3 u64s and an u8.
= IDirectory =
= IDirectory =
+This is "nn::fssrv::sf::IDirectory".
+
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
! Cmd || Name
|-
|-
−| 0 || ReadEntries
+| 0 || [[#Read]]
+|-
+| 1 || [[#GetEntryCount]]
+|}
+== Read ==
+Takes a type-0x6 output buffer. Returns an output u64(?) for the total number of read entries, this is 0 when no more entries are available.
+The output buffer contains the read array of [[#DirectoryEntry]]. This doesn't include entries for "." and "..".
+== GetEntryCount ==
+Returns an u64 for the total number of readable entries.
+= DirectoryEntry =
+This is "nn::fs::DirectoryEntry".
+{| class="wikitable" border="1"
+|-
+! Offset || Size || Description
+|-
+| 0x0 || 0x301 || Path
+|-
+| 0x301 || 0x1 || File attributes (bit 0 = is directory; bit 1 = archive bit)
+|-
+| 0x302 || 0x2 || Padding?
|-
|-
−| 1 || GetNumberOfEntries
+| 0x304 || 0x1 || [[#DirectoryEntryType]]
+|-
+| 0x305 || 0x3 || Padding?
+|-
+| 0x308 || 0x8 || Filesize, 0 for directories.
+|}
+= DirectoryEntryType =
+This is "nn::fs::DirectoryEntryType".
+An s8 value indicating a directory entry type. The current values are:
+{| class="wikitable" border="1"
+|-
+! Value || Description
+|-
+| 0 || Directory
+|-
+| 1 || File
|}
|}
= IFile =
= IFile =
+This is "nn::fssrv::sf::IFile".
+
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 0 || Read
+|-
+| 1 || Write
+|-
+| 2 || Flush
+|-
+| 3 || SetSize
+|-
+| 4 || GetSize
+|-
+| 5 || [4.0.0+] OperateRange
+|-
+| 6 || [12.0.0+] OperateRangeWithBuffer
+|}
= ISaveDataInfoReader =
= ISaveDataInfoReader =
+This is "nn::fssrv::sf::ISaveDataInfoReader".
+
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 0 || [[#ReadSaveDataInfo]]
+|}
+
+== ReadSaveDataInfo ==
+Takes a type-0x6 output buffer. Returns an output u64 for total output entries. This buffer contains an array of [[#SaveDataInfo]].
+
+This is used to get [[#SaveDataInfo]] for all savedata on the system (or all savedata for the current [[#SaveDataSpaceId]]). When used multiple times, it will resume reading where it left off, until no more entries are available (in that case the out u64 is value 0).
= IDeviceOperator =
= IDeviceOperator =
+This is "nn::fssrv::sf::IDeviceOperator".
+
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
! Cmd || Name
|-
|-
−| 0 || IsSdCardInserted
+| 0 || [[#IsSdCardInserted]]
+|-
+| 1 || [[#GetSdCardSpeedMode]]
+|-
+| 2 || [2.0.0+] [[#GetSdCardCid]]
+|-
+| 3 || [2.0.0+] [[#GetSdCardUserAreaSize]]
+|-
+| 4 || [2.0.0+] [[#GetSdCardProtectedAreaSize]]
+|-
+| 5 || [2.0.0+] [[#GetAndClearSdCardErrorInfo]]
+|-
+| 6 || [17.0.0+] [[#GetSdCardHostControllerStatus]]
+|-
+| 100 || [[#GetMmcCid]]
+|-
+| 101 || [[#GetMmcSpeedMode]]
+|-
+| 110 || [[#EraseMmc]]
+|-
+| 111 || [[#GetMmcPartitionSize]]
|-
|-
−| 1 ||
+| 112 || [2.0.0+] [[#GetMmcPatrolCount]]
|-
|-
−| 2 || GetSdCardCid
+| 113 || [2.0.0+] [[#GetAndClearMmcErrorInfo]]
|-
|-
−| 3 ||
+| 114 || [2.0.0+] [[#GetMmcExtendedCsd]]
|-
|-
−| 4 ||
+| 115 || [4.0.0+] [[#SuspendMmcPatrol]]
|-
|-
−| 5 ||
+| 116 || [4.0.0+] [[#ResumeMmcPatrol]]
|-
|-
−| 6 ||
+| 117 || [17.0.0+] [[#EraseMmcWithRange]]
|-
|-
−| 101 ||
+| 200 || [[#IsGameCardInserted]]
|-
|-
−| 110 ||
+| 201 || [[#EraseGameCard]]
|-
|-
−| 111 ||
+| 202 || [[#GetGameCardHandle]]
|-
|-
−| 112 ||
+| 203 || [[#GetGameCardUpdatePartitionInfo]]
|-
|-
−| 113 ||
+| 204 || [[#FinalizeGameCardDriver]]
|-
|-
−| 114 ||
+| 205 || [[#GetGameCardAttribute]]
|-
|-
−| 200 || IsGameCardInserted
+| 206 || [[#GetGameCardDeviceCertificate]]
|-
|-
−| 201 ||
+| 207 || [[#GetGameCardAsicInfo]]
|-
|-
−| 202 || GetGameCardHandle
+| 208 || [[#GetGameCardIdSet]]
|-
|-
−| 203 || GetGameCardUpdatePartitionInfo
+| 209 || [[#WriteToGameCardDirectly]]
|-
|-
−| 204 ||
+| 210 || [[#SetVerifyWriteEnalbleFlag]]
|-
|-
−| 205 || GetGameCardAttribute
+| 211 || [[#GetGameCardImageHash]]
|-
|-
−| 206 || GetGameCardDeviceCertificate
+| 212 || [2.0.0+] [[#GetGameCardDeviceIdForProdCard]]
|-
|-
−| 207 ||
+| 213 || [2.0.0+] [[#EraseAndWriteParamDirectly]]
|-
|-
−| 208 ||
+| 214 || [2.0.0+] [[#ReadParamDirectly]]
|-
|-
−| 209 ||
+| 215 || [2.0.0+] [[#ForceEraseGameCard]]
|-
|-
−| 210 ||
+| 216 || [2.0.0+] [[#GetGameCardErrorInfo]]
|-
|-
−| 211 ||
+| 217 || [2.1.0+] [[#GetGameCardErrorReportInfo]]
|-
|-
−| 212 ||
+| 218 || [3.0.0+] [[#GetGameCardDeviceId]]
|-
|-
−| 213 ||
+| 219 || [8.0.0+] [[#ChallengeCardExistence]]
|-
|-
−| 214 ||
+| 220 || [9.0.0+] [[#GetGameCardCompatibilityType]]
|-
|-
−| 215 ||
+| 221 || [17.0.0+] [[#GetGameCardAsicCertificate]]
|-
|-
−| 216 ||
+| 222 || [18.0.0+] [[#GetGameCardCardHeader]]
|-
|-
−| 300 ||
+| 223 || [19.0.0+] [[#SetGameCardSessionCreationDelay]]
|-
|-
−| 301 ||
+| 224 || [19.0.0+] [[#GetGameCardApplicationIdList]]
+|-
+| 300 || [[#SetSpeedEmulationMode]]
+|-
+| 301 || [[#GetSpeedEmulationMode]]
+|-
+| 302 || [18.0.0+] [[#SetApplicationStorageSpeed]]
+|-
+| 400 || [5.0.0+] [[#SuspendSdmmcControl]]
+|-
+| 401 || [5.0.0+] [[#ResumeSdmmcControl]]
+|-
+| 402 || [6.0.0+] [[#GetSdmmcConnectionStatus]]
+|-
+| 500 || [6.0.0+] [[#SetDeviceSimulationEvent]]
+|-
+| 501 || [6.0.0+] [[#ClearDeviceSimulationEvent]]
|}
|}
+
+== IsSdCardInserted ==
+No input. Returns an output bool.
+
+== GetSdCardSpeedMode ==
+No input. Returns an output [[#SdCardSpeedMode]].
+
+== GetSdCardCid ==
+Takes a type-0x6 output buffer and an input s64 '''BufferSize'''. No output.
+
+== GetSdCardUserAreaSize ==
+No input. Returns an output s64 '''SdCardUserAreaSize'''.
+
+== GetSdCardProtectedAreaSize ==
+No input. Returns an output s64 '''SdCardProtectedAreaSize'''.
+
+== GetAndClearSdCardErrorInfo ==
+Takes a type-0x6 output buffer '''LogBuffer''' and an input s64 '''LogBufferSize'''. Returns an output [[#StorageErrorInfo]] and an output s64 '''LogSize'''.
+
+== GetSdCardHostControllerStatus ==
+No input. Returns an output [[#HostControllerStatus]].
+
+== GetMmcCid ==
+Takes a type-0x6 output buffer and an input s64 '''BufferSize'''. No output.
+
+== GetMmcSpeedMode ==
+No input. Returns an output [[#MmcSpeedMode]].
+
+== EraseMmc ==
+Takes an input [[#MmcPartition]]. No output.
+
+== GetMmcPartitionSize ==
+Takes an input [[#MmcPartition]]. Returns an output s64 '''MmcPartitionSize'''.
+
+== GetMmcPatrolCount ==
+No input. Returns an output u32 '''MmcPatrolCount'''.
+
+== GetAndClearMmcErrorInfo ==
+Takes a type-0x6 output buffer '''LogBuffer''' and an input s64 '''LogBufferSize'''. Returns an output [[#StorageErrorInfo]] and an output s64 '''LogSize'''.
+
+== GetMmcExtendedCsd ==
+Takes a type-0x6 output buffer and an input s64 '''BufferSize'''. No output.
+
+== SuspendMmcPatrol ==
+No input/output.
+
+== ResumeMmcPatrol ==
+No input/output.
+
+== EraseMmcWithRange ==
+Takes an input [[#MmcPartition]] and two input u64s. No output.
+
+== IsGameCardInserted ==
+No input. Returns an output bool.
+
+== EraseGameCard ==
+Takes an input [[#GameCardSize]] and an input u64 '''NormalAreaSize'''. No output.
+
+== GetGameCardHandle ==
+No input. Returns an output [[#GameCardHandle]].
+
+== GetGameCardUpdatePartitionInfo ==
+Takes an input [[#GameCardHandle]]. Returns an output [[#GameCardUpdatePartitionInfo]].
+
+== FinalizeGameCardDriver ==
+No input/output.
+
+== GetGameCardAttribute ==
+Takes an input [[#GameCardHandle]]. Returns an output [[#GameCardAttribute]].
+
+== GetGameCardDeviceCertificate ==
+Takes a type-0x6 output buffer, an input s64 '''BufferSize''' and an input [[#GameCardHandle]]. No output.
+
+[19.0.0+] Now returns an output s64 '''OutSize''' which can be 0x200 or 0x400.
+
+== GetGameCardAsicInfo ==
+Takes a type-0x5 input buffer '''FwBuffer''', a type-0x6 output buffer containing [[#RmaInformation]] and two input s64s '''FwBufferSize''' and '''RmaInformationSize'''. No output.
+
+== GetGameCardIdSet ==
+Takes a type-0x6 output buffer containing a [[#GameCardIdSet]] and an input s64 '''BufferSize'''. No output.
+
+== WriteToGameCardDirectly ==
+Takes a type-0x6 output buffer and two input s64s '''Offset''' and '''BufferSize'''. No output.
+
+== SetVerifyWriteEnalbleFlag ==
+Takes an input bool. No output.
+
+== GetGameCardImageHash ==
+Takes a type-0x6 output buffer, an input s64 '''BufferSize''' and an input [[#GameCardHandle]]. No output.
+
+== GetGameCardDeviceIdForProdCard ==
+Takes a type-0x5 input buffer '''CardHeaderForDev''', a type-0x6 output buffer and two input s64s '''CardHeaderForDevSize''' and '''BufferSize'''. No output.
+
+== EraseAndWriteParamDirectly ==
+Takes a type-0x5 input buffer and an input s64 '''BufferSize'''. No output.
+
+== ReadParamDirectly ==
+Takes a type-0x6 output buffer and an input s64 '''BufferSize'''. No output.
+
+== ForceEraseGameCard ==
+No input/output.
+
+== GetGameCardErrorInfo ==
+No input. Returns an output [[#GameCardErrorInfo]].
+
+== GetGameCardErrorReportInfo ==
+No input. Returns an output [[#GameCardErrorReportInfo]].
+
+== GetGameCardDeviceId ==
+Takes a type-0x6 output buffer and an input s64 '''BufferSize'''. No output.
+
+== ChallengeCardExistence ==
+Takes a type-0x6 output buffer, two type-0x5 input buffers and an input [[#GameCardHandle]]. No output.
+
+[9.0.0+] The [[Account_services|account]] system module uses this as part of a new challenge-response mechanism for [[Network#aauth|application authentication]].
+
+== GetGameCardCompatibilityType ==
+Takes an input [[#GameCardHandle]]. Returns an output [[#GameCardCompatibilityType]].
+
+== GetGameCardAsicCertificate ==
+Takes a type-0x6 output buffer and an input s64 '''BufferSize'''. No output.
+
+== GetGameCardCardHeader ==
+Takes a type-0x6 output buffer, an input s64 '''BufferSize''' and an input [[#GameCardHandle]]. No output.
+
+== SetGameCardSessionCreationDelay ==
+Takes two input bools and an input u32. No output.
+
+== GetGameCardApplicationIdList ==
+Takes a type-0x6 output buffer, an input s64 '''BufferSize''' and an input [[#GameCardHandle]]. Returns an output u16.
+
+== SetSpeedEmulationMode ==
+Takes an input [[#SpeedEmulationMode]]. No output.
+
+== GetSpeedEmulationMode ==
+No input. Returns an output [[#SpeedEmulationMode]].
+
+== SetApplicationStorageSpeed ==
+Takes an input s32. No output.
+
+== SuspendSdmmcControl ==
+No input/output.
+
+== ResumeSdmmcControl ==
+No input/output.
+
+== GetSdmmcConnectionStatus ==
+Takes a total of 4-bytes of input. Returns a total of 8-bytes of output.
+
+== SetDeviceSimulationEvent ==
+Takes a total of 0x14-bytes of input. No output.
+
+== ClearDeviceSimulationEvent ==
+Takes a total of 4-bytes of input. No output.
= IEventNotifier =
= IEventNotifier =
+This is "nn::fssrv::sf::IEventNotifier".
+
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 0 || [[#GetEventHandle]]
+|}
+
+== GetEventHandle ==
+No input, returns an output Event handle. With official sw the EventClearMode is user-specified.
+
+= ISaveDataTransferManager =
+This is "nn::fssrv::sf::ISaveDataTransferManager".
+
+This was added with [[4.0.0]].
+
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 0 || [[#GetChallenge]]
+|-
+| 16 || [[#SetToken]]
+|-
+| 32 || [[#OpenSaveDataExporter]]
+|-
+| 64 || [[#OpenSaveDataImporter]]
+|}
+
+== GetChallenge ==
+No input/output, takes a type-0x6 output buffer.
+
+== SetToken ==
+No input/output, takes a type-0x5 input buffer.
+
+== OpenSaveDataExporter ==
+Takes an input u8 [[#SaveDataSpaceId]] and u64, returns an [[#ISaveDataExporter]].
+
+== OpenSaveDataImporter ==
+Takes an input u8 [[#SaveDataSpaceId]] and a 0x10-byte userID, and a type-0x5 input buffer. Returns an output u64 and an [[#ISaveDataImporter]].
+
+= ISaveDataTransferManagerForSaveDataRepair =
+This is "nn::fssrv::sf::ISaveDataTransferManagerForSaveDataRepair".
+
+This was added with [[9.0.0]].
+
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 0 || [[#GetChallenge]]
+|-
+| 16 || [[#SetKeyPackage]]
+|-
+| 80 || [[#OpenSaveDataExporterAndGetEncryptedKey]]
+|-
+| 81 || [[#PrepareOpenSaveDataImporter]]
+|-
+| 90 || [[#OpenSaveDataImporter]]
+|-
+| 91 || [[#OpenSaveDataImporter2]]
+|-
+| 100 || [[#OpenSaveDataExporterWithKey]]
+|-
+| 110 || [[#OpenSaveDataImporterWithKey]]
+|}
+
+== SetKeyPackage ==
+No input/output, takes a type-0x5 input buffer.
+
+== OpenSaveDataExporterAndGetEncryptedKey ==
+Takes a total of 0x10-bytes of input and a type-0x1A output buffer to receive a RsaEncryptedKey. Returns an [[#ISaveDataDivisionExporter]].
+
+== PrepareOpenSaveDataImporter ==
+Takes a type-0x1A output buffer to receive a RsaEncryptedKey.
+
+== OpenSaveDataImporter ==
+Takes a total of 0x18-bytes of input and two type-0x5 input buffers, returns an [[#ISaveDataDivisionImporter]].
+
+== OpenSaveDataImporter2 ==
+Takes a total of 0x18-bytes of input and a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
+
+== OpenSaveDataExporterWithKey ==
+Takes a total of 0x20-bytes of input, returns an [[#ISaveDataDivisionExporter]].
+
+== OpenSaveDataImporterWithKey ==
+Takes a total of 0x28-bytes of input and a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
+
+[17.0.0+] Now only takes 0x18-bytes of input and an additional type-0x5 input buffer.
+
+= ISaveDataMover =
+This is "nn::fssrv::sf::ISaveDataMover".
+
+This was added with [[10.0.0]].
+
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 8 || [[#Register]]
+|-
+| 16 || [[#Process]]
+|-
+| 18 || [[#Cancel]]
+|}
+
+== Register ==
+Takes an input u64, no output.
+
+== Process ==
+Takes an input u64, returns an output u64.
+
+== Cancel ==
+No input/output.
+
+= ISaveDataTransferManagerForRepair =
+This is "nn::fssrv::sf::ISaveDataTransferManagerForRepair".
+
+This was added with [[11.0.0]].
+
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 80 || [[#OpenSaveDataExporter]]
+|-
+| 90 || [[#OpenSaveDataImporter]]
+|}
+
+== OpenSaveDataExporter ==
+Takes a total of 0x10-bytes of input, returns an [[#ISaveDataDivisionExporter]].
+
+== OpenSaveDataImporter ==
+Takes 1-byte of input, a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
+
+= ISaveDataExporter =
+This is "nn::fssrv::sf::ISaveDataExporter".
+
+This was added with [[4.0.0]].
+
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 0 || [[#GetSaveDataInfo]]
+|-
+| 1 || [[#GetRestSize]]
+|-
+| 16 || [[#Pull]]
+|-
+| 17 || [[#PullInitialData]]
+|}
+
+== GetSaveDataInfo ==
+No input/output, takes a type-0x1A [[#SaveDataInfo]] output buffer.
+
+The actual name for this is the SaveDataExporter constructor. This is used automatically after [[#OpenSaveDataExporter]] by official sw.
+
+== GetRestSize ==
+No input, returns an output u64.
+
+== Pull ==
+Takes a type-0x6 output buffer, returns an output u64.
+
+== PullInitialData ==
+No input/output, takes a type-0x6 output buffer.
+
+= ISaveDataImporter =
+This is "nn::fssrv::sf::ISaveDataImporter".
+
+This was added with [[4.0.0]].
+
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 0 || [[#GetSaveDataInfo]]
+|-
+| 1 || [[#GetRestSize]]
+|-
+| 16 || [[#Push]]
+|-
+| 17 || [[#Finalize]]
+|}
+
+== GetSaveDataInfo ==
+No input/output, takes a type-0x1A [[#GetSaveDataInfo]] output buffer.
+
+The actual name for this is the SaveDataImporter constructor. This is used automatically after [[#OpenSaveDataImporter]] by official sw.
+
+== GetRestSize ==
+No input, returns an output u64.
+
+== Push ==
+No input/output, takes a type-0x5 input buffer.
+
+== Finalize ==
+No input/output.
+
+= ISaveDataTransferManagerWithDivision =
+This is "nn::fssrv::sf::ISaveDataTransferManagerWithDivision".
+
+This was added with [[5.0.0]].
+
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 0 || [[#GetChallenge]]
+|-
+| 8 || [18.0.0+] SetMode
+|-
+| 9 || [18.0.0+] SetAttribute
+|-
+| 16 || [[#SetKeySeedPackage]]
+|-
+| 32 || [[#OpenSaveDataExporter]]
+|-
+| 33 || [[#OpenSaveDataExporterForDiffExport]]
+|-
+| 34 || [6.0.0+] [[#OpenSaveDataExporterByContext]]
+|-
+| 63 || [17.0.0+] OpenSaveDataImporter
+|-
+| 64 || [6.0.0-17.0.1] [[#OpenSaveDataImporterDeprecated]] ([5.0.0-5.1.0] OpenSaveDataImporter)
+|-
+| 65 || [5.0.0-17.0.1] [[#OpenSaveDataImporterForDiffImport]]
+|-
+| 66 || [6.0.0-17.0.1] [[#OpenSaveDataImporterForDuplicateDiffImport]]
+|-
+| 67 || [6.0.0-16.1.0] [[#OpenSaveDataImporter]]
+|-
+| 68 || [6.0.0+] [[#OpenSaveDataImporterByContext]]
+|-
+| 69 || [6.0.0+] [[#CancelSuspendingImport]]
+|-
+| 70 || [10.0.0+] CancelSuspendingImportByAttribute
+|-
+| 80 || [11.0.0+] SwapSecondary
+|}
+
+== GetChallenge ==
+No input/output, takes a type-0x6 output buffer containing the '''Challenge'''.
+
+== SetKeySeedPackage ==
+No input/output, takes a type-0x5 input buffer containing the '''KeySeedPackage'''.
+
+== OpenSaveDataExporter ==
+Takes an input u8 [[#SaveDataSpaceId]] and u64. Returns an [[#ISaveDataDivisionExporter]].
+
+== OpenSaveDataExporterForDiffExport ==
+Takes an input u8 [[#SaveDataSpaceId]], an u64, and a type-0x5 input buffer [[#InitialDataVersion2]]. Returns an [[#ISaveDataDivisionExporter]].
+
+== OpenSaveDataExporterByContext ==
+No input/output, takes a type-0x5 input buffer, returns an [[#ISaveDataDivisionExporter]].
+
+== OpenSaveDataImporterDeprecated ==
+Takes an input u8 [[#SaveDataSpaceId]], a 0x10-byte userID, and a type-0x5 input buffer [[#InitialDataVersion2]]. Returns an [[#ISaveDataDivisionImporter]].
+
+== OpenSaveDataImporterForDiffImport ==
+Takes an input u8 [[#SaveDataSpaceId]], an u64, and a type-0x5 input buffer [[#InitialDataVersion2]], returns an [[#ISaveDataDivisionImporter]].
+
+== OpenSaveDataImporterForDuplicateDiffImport ==
+Takes an input u8 and an u64, and a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
+
+== OpenSaveDataImporter ==
+Takes an input u8, an u8(bool), a 0x10-byte struct, and a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
+
+== OpenSaveDataImporterByContext ==
+No input/output, takes a type-0x5 input buffer, returns an [[#ISaveDataDivisionImporter]].
+
+== CancelSuspendingImport ==
+Takes an input u64 and a 0x10-byte struct, no output.
+
+= ISaveDataDivisionExporter =
+This is "nn::fssrv::sf::ISaveDataDivisionExporter".
+
+This was added with [[5.0.0]].
+
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 0 || [[#SetDivisionCount]]
+|-
+| 1 || [6.0.0+] [[#ReadSaveDataExtraData]]
+|-
+| 16 || [[#OpenSaveDataDiffChunkIterator]]
+|-
+| 48 || [[#OpenSaveDataChunkExporter]]
+|-
+| 64 || [6.0.0-8.1.0] [[#FinalizeFullExport]]
+|-
+| 65 || [6.0.0-8.1.0] [[#FinalizeDiffExport]]
+|-
+| 66 || [6.0.0+] [[#CancelExport]]
+|-
+| 67 || [6.0.0+] [[#SuspendExport]]
+|-
+| 70 || [6.0.0-17.0.1] [[#GetKeySeed]]
+|-
+| 71 || [6.0.0+] [[#GetInitialDataMac]]
+|-
+| 72 || [6.0.0+] [[#FinalizeExport]]
+|-
+| 73 || [9.0.0+] [[#GetInitialDataMacKeyGeneration]]
+|-
+| 74 || [18.0.0+] [[#GetKeySeed]]
+|-
+| 80 || [6.0.0+] [[#GetImportInitialDataAad]]
+|-
+| 81 || [6.0.0+] [[#SetExportInitialDataAad]]
+|-
+| 96 || [6.0.0+] [[#GetReportInfo]]
+|}
+
+== SetDivisionCount ==
+Takes an input u32, no output.
+
+== OpenSaveDataChunkExporter ==
+Takes an input u32, returns an [[#ISaveDataChunkExporter]].
+
+== FinalizeFullExport ==
+No input, returns two 0x10-byte output structs.
+
+== FinalizeDiffExport ==
+No input, returns an output 0x10-byte struct.
+
+== CancelExport ==
+No input/output.
+
+== SuspendExport ==
+No input/output, takes a type-0x6 output buffer.
+
+== GetKeySeed ==
+No input, returns an output 0x10-byte struct.
+
+== GetInitialDataMac ==
+No input, returns an output 0x10-byte struct.
+
+== FinalizeExport ==
+No input/output.
+
+== SetExportInitialDataAad ==
+Takes an input 0x20-byte struct, no output.
+
+= ISaveDataDivisionImporter =
+This is "nn::fssrv::sf::ISaveDataDivisionImporter".
+
+This was added with [[5.0.0]].
+
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 0 || [6.0.0+] [[#ReadSaveDataExtraData]]
+|-
+| 16 || [[#OpenSaveDataDiffChunkIterator]]
+|-
+| 32 || [[#InitializeImport]]
+|-
+| 33 || [[#FinalizeImport]]
+|-
+| 34 || [6.0.0+] [[#CancelImport]]
+|-
+| 35 || [6.0.0+] [[#GetImportContext]]
+|-
+| 36 || [6.0.0+] [[#SuspendImport]]
+|-
+| 37 || [11.0.0+] FinalizeImportWithoutSwap
+|-
+| 48 || [[#OpenSaveDataChunkImporter]]
+|-
+| 64 || [6.0.0+] [[#GetImportInitialDataAad]]
+|-
+| 80 || [6.0.0+] [[#GetReportInfo]]
+|}
+
+== ReadSaveDataExtraData ==
+No input/output, takes a type-0x6 output buffer.
+
+== OpenSaveDataDiffChunkIterator ==
+No input, returns an [[#ISaveDataChunkIterator]].
+
+== InitializeImport ==
+No input, returns an output u64.
+
+== FinalizeImport ==
+No input/output.
+
+== CancelImport ==
+No input/output.
+
+== GetImportContext ==
+No input/output, takes a type-0x6 output buffer.
+
+== SuspendImport ==
+No input/output.
+
+== OpenSaveDataChunkImporter ==
+Takes an input u32, returns an [[#ISaveDataChunkImporter]].
+
+== GetImportInitialDataAad ==
+No input, returns an output 0x20-byte struct.
+
+== GetReportInfo ==
+No input, returns an output 0x20-byte struct.
+
+= ISaveDataChunkIterator =
+This is "nn::fssrv::sf::ISaveDataChunkIterator".
+
+This was added with [[5.0.0]].
+
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
! Cmd || Name
|-
|-
−| 0 || BindEvent
+| 0 || [[#Next]]
+|-
+| 1 || [[#IsEnd]]
+|-
+| 16 || [[#GetId]]
|}
|}
−= StorageId =
+== Next ==
+No input/output.
+== IsEnd ==
+No input, returns an output u8.
+== GetId ==
+No input, returns an output u32.
+= ISaveDataChunkExporter =
+This is "nn::fssrv::sf::ISaveDataChunkExporter".
+This was added with [[5.0.0]].
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 0 || [[#Pull]]
+|-
+| 16 || [6.0.0+] [[#GetRestRawDataSize]]
+|}
+== Pull ==
+Takes an input u64 and a type-0x6 output buffer, returns an output u64.
+== GetRestRawDataSize ==
+No input, returns an output u64.
+= ISaveDataChunkImporter =
+This is "nn::fssrv::sf::ISaveDataChunkImporter".
+This was added with [[5.0.0]].
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 0 || [[#Push]]
+|}
+== Push ==
+Takes an input u64 and a type-0x5 input buffer, no output.
+= ISaveDataTransferProhibiter =
+This is "nn::fssrv::sf::ISaveDataTransferProhibiter".
+This was added with [6.0.0+].
+This doesn't seem to handle any commands (?).
+= IMultiCommitManager =
+This is "nn::fssrv::sf::IMultiCommitManager".
+This was added with [6.0.0+].
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 1 || [[#Add]]
+|-
+| 2 || [[#Commit]]
+|}
+== Add ==
+Takes an input [[#IFilesystem]], no output.
+== Commit ==
+No input/output.
+= IWiper =
+This is "nn::fssrv::sf::IWiper".
+This was added with [[10.0.0]].
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| 0 || [[#Startup|Startup]]
+|-
+| 16 || [[#Process_2|Process]]
+|}
+== Startup ==
+No input. Returns an u64.
+== Process ==
+No input. Returns an u64.
+= IStorageDeviceManager =
+This is "nn::fssrv::storage::sf::IStorageDeviceManager".
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| N/A || IsInserted
+|-
+| N/A || IsHandleValid
+|-
+| N/A || OpenDetectionEvent
+|-
+| N/A || OpenOperator
+|-
+| N/A || OpenDevice
+|-
+| N/A || OpenStorage
+|-
+| N/A || Invalidate
+|}
+= IStorageDeviceOperator =
+This is "nn::fssrv::storage::sf::IStorageDeviceOperator".
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| N/A || Operate
+|-
+| N/A || OperateIn
+|-
+| N/A || OperateOut
+|-
+| N/A || OperateOut2
+|-
+| N/A || OperateInOut
+|-
+| N/A || OperateIn2Out
+|}
+= IStorageDevice =
+This is "nn::fssrv::storage::sf::IStorageDevice".
+{| class="wikitable" border="1"
+|-
+! Cmd || Name
+|-
+| N/A || GetHandle
+|-
+| N/A || IsHandleValid
+|-
+| N/A || OpenOperator
+|-
+| N/A || Read
+|-
+| N/A || Write
+|-
+| N/A || Flush
+|-
+| N/A || SetSize
+|-
+| N/A || GetSize
+|-
+| N/A || OperateRange
+|}
+= FileSystemProxyType =
+This is "nn::fs::FileSystemProxyType".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || Code
+|-
+| 1 || Rom
+|-
+| 2 || Logo
+|-
+| 3 || Control
+|-
+| 4 || Manual
+|-
+| 5 || Meta
+|-
+| 6 || Data
+|-
+| 7 || Package
+|-
+| 8 || [4.0.0+] RegisteredUpdate
+|}
+= ContentType =
+This is "nn::fs::ContentType".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || Meta
+|-
+| 1 || Control
+|-
+| 2 || Manual
+|-
+| 3 || Logo
+|-
+| 4 || Data
+|}
+= ContentAttributes =
+This is "nn::fs::ContentAttributes".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || None
+|-
+| 15 || All
+|}
+= ContentStorageId =
+This is "nn::fs::ContentStorageId".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || System
+|-
+| 1 || User
+|-
+| 2 || SdCard
+|-
+| 3 || [16.0.0+] System0
+|}
+= SaveDataSpaceId =
+This is "nn::fs::SaveDataSpaceId".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || System
+|-
+| 1 || User
+|-
+| 2 || SdSystem
+|-
+| 3 || [3.0.0+] Temporary
+|-
+| 4 || [4.0.0+] SdUser
+|-
+| 100 || [3.0.0+] ProperSystem
+|-
+| 101 || [3.0.0+] SafeMode
+|}
+Determines the storage where the savedata is stored.
+= SaveDataType =
+This is "nn::fs::SaveDataType".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || System
+|-
+| 1 || Account
+|-
+| 2 || Bcat
+|-
+| 3 || Device
+|-
+| 4 || [3.0.0+] Temporary
+|-
+| 5 || [3.0.0+] Cache
+|-
+| 6 || [4.0.0+] SystemBcat
+|}
+= SaveDataRank =
+This is "nn::fs::SaveDataRank".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || Primary
+|-
+| 1 || Secondary
+|}
+= SaveDataEnumerateOption =
+This is "nn::fs::SaveDataEnumerateOption".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 1 || AllRank
+|}
+= SaveDataFlags =
+This is "nn::fs::SaveDataFlags".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 1 || KeepAfterResettingSystemSaveData
+|-
+| 2 || KeepAfterRefurbishment
+|-
+| 4 || KeepAfterResettingSystemSaveDataWithoutUserSaveData
+|-
+| 8 || NeedsSecureDelete
+|}
+= SaveDataMetaType =
+This is "nn::fs::SaveDataMetaType".
+{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
Line 298:
Line 2,056:
| 0 || None
| 0 || None
|-
|-
−| 1 || Host
+| 1 || Thumbnail
+|-
+| 2 || ExtensionContext
+|}
+= ImageDirectoryId =
+This is "nn::fs::ImageDirectoryId".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || Nand
+|-
+| 1 || SdCard
+|}
+= CloudBackupWorkStorageId =
+This is "nn::fs::CloudBackupWorkStorageId".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || Nand
+|-
+| 1 || SdCard
+|}
+= CustomStorageId =
+This is "nn::fs::CustomStorageId".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || System
+|-
+| 1 || SdCard
+|}
+= Priority =
+This is "nn::fs::Priority".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || Realtime
+|-
+| 1 || Normal
+|-
+| 2 || Low
+|}
+= PriorityRaw =
+This is "nn::fs::PriorityRaw".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || Realtime
+|-
+| 1 || Normal
+|-
+| 2 || Low
+|-
+| 3 || Background
+|}
+= AbortSpecifier =
+This is "nn::fs::AbortSpecifier".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || Default
+|-
+| 1 || Abort
+|-
+| 2 || ReturnResult
+|}
+= OperationId =
+This is "nn::fs::OperationId".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || Clear
+|-
+| 1 || ClearSignature
+|-
+| 2 || InvalidateCache
+|-
+| 3 || QueryRange
+|}
+= MountHostOption =
+This is "nn::fs::MountHostOption".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 1 || PseudoCaseSensitive
+|}
+= BisPartitionId =
+This is "nn::fs::BisPartitionId".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || BootPartition1Root
+|-
+| 10 || BootPartition2Root
+|-
+| 20 || UserDataRoot
+|-
+| 21 || BootConfigAndPackage2Part1
+|-
+| 22 || BootConfigAndPackage2Part2
+|-
+| 23 || BootConfigAndPackage2Part3
+|-
+| 24 || BootConfigAndPackage2Part4
+|-
+| 25 || BootConfigAndPackage2Part5
+|-
+| 26 || BootConfigAndPackage2Part6
+|-
+| 27 || CalibrationBinary
+|-
+| 28 || CalibrationFile
+|-
+| 29 || SafeMode
+|-
+| 30 || User
+|-
+| 31 || System
+|-
+| 32 || SystemProperEncryption
+|-
+| 33 || SystemProperPartition
+|-
+| 34 || SignedSystemPartitionOnSafeMode
+|-
+| 35 || [16.0.0+] DeviceTreeBlob
+|-
+| 36 || [16.0.0+] System0
+|}
+= SdCardSpeedMode =
+This is "nn::fs::SdCardSpeedMode".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || Identification
+|-
+| 1 || DefaultSpeed
+|-
+| 2 || HighSpeed
+|-
+| 3 || Sdr12
+|-
+| 4 || Sdr25
+|-
+| 5 || Sdr50
+|-
+| 6 || Sdr104
+|-
+| 7 || Ddr50
+|-
+| 8 || Unknown
+|}
+= MmcSpeedMode =
+This is "nn::fs::MmcSpeedMode".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || Identification
+|-
+| 1 || LegacySpeed
+|-
+| 2 || HighSpeed
+|-
+| 3 || Hs200
+|-
+| 4 || Hs400
+|-
+| 5 || Unknown
+|}
+= MmcPartition =
+This is "nn::fs::MmcPartition".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || UserData
+|-
+| 1 || BootPartition1
+|-
+| 2 || BootPartition2
+|}
+= HostControllerStatus =
+This is "nn::sdcard::HostControllerStatus".
+{| class="wikitable" border="1"
+|-
+! Offset
+! Size
+! Description
+|-
+| 0x0
+| 0xC
+|
+|}
+= MemoryReportInfo =
+This is "nn::fs::MemoryReportInfo".
+{| class="wikitable" border="1"
+|-
+! Offset
+! Size
+! Description
+|-
+| 0x0
+| 0x8
+| PooledBufferFreeSizePeak
+|-
+| 0x8
+| 0x8
+| PooledBufferRetriedCount
+|-
+| 0x10
+| 0x8
+| PooledBufferReduceAllocationCount
+|-
+| 0x18
+| 0x8
+| BufferManagerFreeSizePeak
+|-
+| 0x20
+| 0x8
+| BufferManagerRetriedCount
+|-
+| 0x28
+| 0x8
+| ExpHeapFreeSizePeak
+|-
+| 0x30
+| 0x8
+| BufferPoolFreeSizePeak
+|-
+| 0x38
+| 0x8
+| PatrolReadAllocateBufferSuccessCount
+|-
+| 0x40
+| 0x8
+| PatrolReadAllocateBufferFailureCount
+|-
+| 0x48
+| 0x8
+| BufferManagerTotalAllocatableSizePeak
+|-
+| 0x50
+| 0x8
+| BufferPoolAllocateSizeMax
+|-
+| 0x58
+| 0x8
+| PooledBufferFailedIdealAllocationCountOnAsyncAccess
+|-
+| 0x60
+| 0x20
+| Reserved
+|}
+= StorageErrorInfo =
+This is "nn::fs::StorageErrorInfo".
+{| class="wikitable" border="1"
+|-
+! Offset
+! Size
+! Description
+|-
+| 0x0
+| 0x4
+| NumActivationFailures
+|-
+| 0x4
+| 0x4
+| NumActivationErrorCorrections
+|-
+| 0x8
+| 0x4
+| NumReadWriteFailures
+|-
+| 0xC
+| 0x4
+| NumReadWriteErrorCorrections
+|}
+= GameCardErrorInfo =
+This is "nn::fs::GameCardErrorInfo".
+{| class="wikitable" border="1"
+|-
+! Offset
+! Size
+! Description
+|-
+| 0x0
+| 0x2
+| GameCardCrcErrorCount
+|-
+| 0x2
+| 0x2
+| Reserved
+|-
+| 0x4
+| 0x2
+| AsicCrcErrorCount
+|-
+| 0x6
+| 0x2
+| Reserved
+|-
+| 0x8
+| 0x2
+| RefreshCount
+|-
+| 0xA
+| 0x2
+| Reserved
+|-
+| 0xC
+| 0x2
+| ReadRetryCount
+|-
+| 0xE
+| 0x2
+| TimeoutRetryErrorCount
+|}
+= GameCardErrorReportInfo =
+This is "nn::fs::GameCardErrorReportInfo".
+{| class="wikitable" border="1"
+|-
+! Offset
+! Size
+! Description
+|-
+| 0x0
+| 0x10
+| [[#GameCardErrorInfo|ErrorInfo]]
+|-
+| 0x10
+| 0x2
+| AsicReinitializeFailureDetail
+|-
+| 0x12
+| 0x2
+| InsertionCount
+|-
+| 0x14
+| 0x2
+| RemovalCount
+|-
+| 0x16
+| 0x2
+| AsicReinitializeCount
+|-
+| 0x18
+| 0x4
+| AsicInitializeCount
+|-
+| 0x1C
+| 0x2
+| AsicReinitializeFailureCount
+|-
+| 0x1E
+| 0x2
+| AwakenFailureCount
+|-
+| 0x20
+| 0x2
+| Reserved
+|-
+| 0x22
+| 0x2
+| RefreshCount
+|-
+| 0x24
+| 0x4
+| LastReadErrorPageAddress
+|-
+| 0x28
+| 0x4
+| LastReadErrorPageCount
+|-
+| 0x2C
+| 0x4
+| AwakenCount
+|-
+| 0x30
+| 0x4
+| ReadCountFromInsert
+|-
+| 0x34
+| 0x4
+| ReadCountFromAwaken
+|-
+| 0x38
+| 0x8
+| Reserved
+|}
+= GameCardHandle =
+This is "nn::fs::GameCardHandle". This is an u32.
+= GameCardPartition =
+This is "nn::fs::GameCardPartition".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || Update
+|-
+| 1 || Normal
+|-
+| 2 || Secure
+|-
+| 3 || [4.0.0+] Logo
+|}
+= GameCardPartitionRaw =
+This is "nn::fs::GameCardPartitionRaw".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || NormalReadOnly
+|-
+| 1 || SecureReadOnly
+|-
+| 2 || RootWriteOnly
+|}
+= GameCardAttribute =
+This is "nn::fs::GameCardAttribute".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 1 || AutoBootFlag
+|-
+| 2 || HistoryEraseFlag
+|-
+| 4 || [4.0.0+] RepairToolFlag
+|-
+| 8 || [9.0.0+] DifferentRegionCupToTerraDeviceFlag
+|-
+| 16 || [9.0.0+] DifferentRegionCupToGlobalDeviceFlag
+|}
+= GameCardAttribute2 =
+This is "nn::fs::GameCardAttribute2".
+= GameCardSize =
+This is "nn::fs::GameCardSize".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 1 || Size1GB
+|-
+| 2 || Size2GB
+|-
+| 4 || Size4GB
+|-
+| 8 || Size8GB
+|-
+| 16 || Size16GB
+|-
+| 32 || Size32GB
+|}
+= GameCardClockRate =
+This is "nn::fs::GameCardClockRate".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 25 || ClockRate25MHz
+|-
+| 50 || ClockRate50MHz
+|}
+= GameCardCompatibilityType =
+This is "nn::fs::GameCardCompatibilityType".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || Global
+|-
+| 1 || China
+|}
+= GameCardUpdatePartitionInfo =
+This is "nn::fs::GameCardUpdatePartitionInfo".
+{| class="wikitable" border="1"
+|-
+! Offset
+! Size
+! Description
+|-
+| 0x0
+| 0x4
+| Version
+|-
+| 0x4
+| 0x4
+| Reserved
+|-
+| 0x8
+| 0x8
+| Id
+|}
+= GameCardIdSet =
+This is "nn::gc::GameCardIdSet".
+{| class="wikitable" border="1"
+|-
+! Offset
+! Size
+! Description
+|-
+| 0x0
+| 0x4
+| [[#CardId1|Id1]]
+|-
+| 0x4
+| 0x4
+| [[#CardId2|Id2]]
+|-
+| 0x8
+| 0x4
+| [[#CardId3|Id3]]
+|}
+= CardId1 =
+This is "nn::gc::detail::CardId1".
+{| class="wikitable" border="1"
+|-
+! Offset
+! Size
+! Description
+|-
+| 0x0
+| 0x1
+| [[#MakerCodeForCardId1|MakerCode]]
+|-
+| 0x1
+| 0x1
+| [[#MemoryCapacity|MemoryCapacity]]
+|-
+| 0x2
+| 0x1
+| Reserved
+|-
+| 0x3
+| 0x1
+| [[#MemoryType|MemoryType]]
+|}
+= CardId2 =
+This is "nn::gc::detail::CardId2".
+{| class="wikitable" border="1"
+|-
+! Offset
+! Size
+! Description
+|-
+| 0x0
+| 0x1
+| [[#CardSecurityNumber|CardSecurityNumber]]
+|-
+| 0x1
+| 0x1
+| [[#CardType|CardType]]
+|-
+| 0x2
+| 0x2
+| Reserved
+|}
+= CardId3 =
+This is "nn::gc::detail::CardId3".
+{| class="wikitable" border="1"
+|-
+! Offset
+! Size
+! Description
+|-
+| 0x0
+| 0x4
+| Reserved
+|}
+= MakerCodeForCardId1 =
+This is "nn::gc::detail::MakerCodeForCardId1".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0xC2 || MegaChips
+|-
+| 0xAE || Lapis
+|-
+| 0x36 ||
+|}
+= MemoryCapacity =
+This is "nn::gc::detail::MemoryCapacity".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0xFA || 1GB
+|-
+| 0xF8 || 2GB
+|-
+| 0xF0 || 4GB
+|-
+| 0xE0 || 8GB
+|-
+| 0xE1 || 16GB
+|-
+| 0xE2 || 32GB
+|}
+= MemoryType =
+This is "nn::gc::detail::MemoryType".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0x1 || T1RomFast
+|-
+| 0x2 || T2RomFast
+|-
+| 0x9 || T1NandFast
+|-
+| 0xA || T2NandFast
+|-
+| 0x21 || T1RomLate
+|-
+| 0x22 || T2RomLate
+|-
+| 0x29 || T1NandLate
+|-
+| 0x2A || T2NandLate
+|}
+= CardSecurityNumber =
+This is "nn::gc::detail::CardSecurityNumber".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || 0
+|-
+| 1 || 1
+|-
+| 2 || 2
+|-
+| 3 || 3
+|-
+| 4 || 4
+|}
+= CardType =
+This is "nn::gc::detail::CardType".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || Rom
+|-
+| 1 || WritableDevT1
+|-
+| 2 || WritableProdT1
+|-
+| 3 || WritableDevT2
+|-
+| 4 || WritableProdT2
+|}
+= RmaInformation =
+This is "nn::gc::RmaInformation". This is a 0x200-byte struct.
+= GameCardCardHeader =
+This is a 0x600-byte struct.
+{| class="wikitable" border="1"
+|-
+! Offset
+! Size
+! Description
+|-
+| 0x0
+| 0x100
+| [[XCI#CardHeader|Signature]]
+|-
+| 0x100
+| 0x100
+| [[Lotus3#GetCardHeader|Header]]
+|-
+| 0x200
+| 0x400
+| [[XCI#NewCardHeaderCertArea|NewCardHeaderCertArea]]
+|}
+= GameCardAsicProductionFirmware =
+This is the [[Lotus3#AsicFirmware|firmware]] for reading production Gamecards.
+Embedded in "nn::gc::detail::EmbeddedDataHolder::g_FwReadBuffer" when in production mode.
+[4.0.0+] This firmware was updated to provide support for new Gamecards.
+[9.0.0+] This firmware was updated.
+[11.0.0+] This firmware was updated.
+[12.0.0+] This firmware was updated.
+[14.0.0+] This firmware was updated.
+= GameCardAsicDevelopmentFirmware =
+This is the [[Lotus3#AsicFirmware|firmware]] for reading development Gamecards.
+Embedded in "nn::gc::detail::EmbeddedDataHolder::g_FwReadBuffer" when in development mode.
+[9.0.0+] This firmware was updated.
+[11.0.0+] This firmware was updated.
+[14.0.0+] This firmware was updated.
+= GameCardAsicWriterFirmware =
+This is the [[Lotus3#AsicFirmware|firmware]] for writing development Gamecards.
+Embedded in "nn::gc::detail::EmbeddedDataHolder::g_FwWriterBuffer".
+= SimulatingDeviceType =
+This is "nn::fs::SimulatingDeviceType".
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || eMMC
+|-
+| 1 || SdCard
|-
|-
| 2 || GameCard
| 2 || GameCard
+|}
+
+= SimulatingDeviceDetectionMode =
+This is "nn::fs::SimulatingDeviceDetectionMode".
+
+{| class="wikitable" border="1"
+|-
+! Value || Name
|-
|-
−| 3 || NandSystem
+| 0 || NoSimulation
|-
|-
−| 4 || NandUser
+| 1 || DeviceAttached
|-
|-
−| 5 || SdCard
+| 2 || DeviceRemoved
|}
|}
+
+= SimulatingDeviceAccessFailureEventType =
+This is "nn::fs::SimulatingDeviceAccessFailureEventType".
+
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || None
+|-
+| 1 || AccessTimeoutFailure
+|-
+| 2 || AccessFailure
+|-
+| 3 || DataCorruption
+|}
+
+= SimulatingDeviceTargetOperation =
+This is "nn::fs::SimulatingDeviceTargetOperation".
+
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 1 || Read
+|-
+| 2 || Write
+|}
+
+= SpeedEmulationMode =
+This is "nn::fs::SpeedEmulationMode".
+
+{| class="wikitable" border="1"
+|-
+! Value || Name
+|-
+| 0 || None
+|-
+| 1 || Faster
+|-
+| 2 || Slower
+|-
+| 3 || Random
+|}
+
+= FspPath =
+This is "nn::fssrv::sf::FspPath". This is a 0x301-byte string.
+
+{| class="wikitable" border="1"
+|-
+! Path || Notes
+|-
+| @SystemContent ||
+|-
+| @UserContent ||
+|-
+| @SdCardContent ||
+|-
+| @CalibFile ||
+|-
+| @Safe ||
+|-
+| @User ||
+|-
+| @System ||
+|-
+| @Sdcard ||
+|-
+| @Host ||
+|-
+| @GcApp || Gamecard App partition (Partition 2)
+|-
+| @GcXYYYYYYYY || Gamecard Contents. X is the partition type (U - Update, N - Normal, S - Secure). Y is the gamecard handle as a 32-bit hex value
+|-
+| @upp || Gamecard update partition (Partition 0)
+|-
+| [4.0.0+] @RegUpdate || Registered update partition
+|}
+
+= SaveDataAttribute =
+This is "nn::fs::SaveDataAttribute".
+
+{| class="wikitable" border="1"
+|-
+! Offset
+! Size
+! Description
+|-
+| 0x0
+| 0x8
+| [[NCM_services#ApplicationId|ApplicationId]] (0 for SystemSaveData)</br>SaveData: 0 can be used for accessing the savedata associated with the current FS session [[NCM_services#ApplicationId|ApplicationId]], otherwise when set this is the [[NCM_services#ApplicationId|ApplicationId]] associated with the savedata to access.
+|-
+| 0x8
+| 0x10
+| UserId</br>For user-specific savedata(saveuser) when set, otherwise when zero this indicates the common savedata(savecommon). This is loaded from [[Account_services]].
+|-
+| 0x18
+| 0x8
+| [[Flash_Filesystem|SystemSaveDataId]] (0 for SaveData)
+|-
+| 0x20
+| 0x1
+| [[#SaveDataType]]
+|-
+| 0x21
+| 0x1
+| [[#SaveDataRank]]
+|-
+| 0x22
+| 0x2
+| SaveDataIndex
+|-
+| 0x24
+| 0x4
+| Padding
+|-
+| 0x28
+| 0x8
+| 0 for SystemSaveData/SaveData.
+|-
+| 0x30
+| 0x8
+| 0 for SystemSaveData/SaveData.
+|-
+| 0x38
+| 0x8
+| 0 for SystemSaveData/SaveData.
+|}
+
+Total size is 0x40-bytes.
+
+For DeviceSaveData, this struct is all-zero except for the [[#SaveDataType]] field (and optionally the ApplicationId if specified).
+
+= SaveDataCreationInfo =
+This is "nn::fs::SaveDataCreationInfo".
+
+{| class="wikitable" border="1"
+|-
+! Offset
+! Size
+! Description
+|-
+| 0x0
+| 0x8
+| SaveDataSize
+|-
+| 0x8
+| 0x8
+| JournalSize
+|-
+| 0x10
+| 0x8
+| AvailableSize</br>0x4000 for SystemSaveData/SaveData/DeviceSaveData/BcatSaveData.
+|-
+| 0x18
+| 0x8
+| OwnerId</br>Official user-processes only uses 0 here for SystemSaveData/SaveData. For the dedicated save-creation code with SaveData/DeviceSaveData, this value comes from an input param with official user-processes. For BcatSaveData, this is the hard-coded [[NCM_services#ProgramId|ProgramId]] of the bcat-sysmodule.
+|-
+| 0x20
+| 0x4
+| [[#SaveDataFlags]]</br>Written using an input param for official user-processes. Hard-coded 0 for BcatSaveData.
+|-
+| 0x24
+| 0x1
+| [[#SaveDataSpaceId]]</br>Official user-processes only uses 0 here for SystemSaveData, 1 for SaveData/DeviceSaveData/BcatSaveData.
+|-
+| 0x25
+| 0x1
+| Unknown. 0 for SystemSaveData/SaveData.
+|-
+| 0x26
+| 0x1A
+| Not initialized for SystemSaveData/SaveData.
+|}
+
+Total size is 0x40-bytes.
+
+= DeviceSaveData =
+This is accessed using the same commands for SaveData with the same input u8, the only difference compared to SaveData is the [[#SaveDataAttribute]].
+
+= BcatSaveData =
+This is accessed using the same commands for SaveData with the same input u8. The [[#SaveDataAttribute]] is the same as DeviceSaveData (besides the SaveDataType), except that the [[NCM_services#ApplicationId|ApplicationId]] field is always set to <input ApplicationId> (unlike DeviceSaveData where it's optional). See above regarding [[#SaveDataCreationInfo]].
+
+The 0x10-byte struct passed to [[#CreateSaveDataFileSystem]] has the first 0x5-bytes set to all-zero.
+
+MountSystemBcatSaveData uses [[#OpenSaveDataFileSystemBySystemSaveDataId]] with [[#SaveDataSpaceId]] System. The [[#SaveDataAttribute]] is all-zero, except for the SaveDataType, and SystemSaveDataId is set to the input param.
+
+= SaveDataInfo =
+This is "nn::fs::SaveDataInfo".
+
+{| class="wikitable" border="1"
+|-
+! Offset
+! Size
+! Description
+|-
+| 0x0
+| 0x8
+| SaveDataId
+|-
+| 0x8
+| 0x1
+| [[#SaveDataSpaceId]]
+|-
+| 0x9
+| 0x1
+| [[#SaveDataType]]
+|-
+| 0xA
+| 0x6
+| Padding?
+|-
+| 0x10
+| 0x10
+| UserId
+|-
+| 0x20
+| 0x8
+| SystemSaveDataId (0 for regular SaveData)
+|-
+| 0x28
+| 0x8
+| [[NCM_services#ApplicationId|ApplicationId]] (for regular SaveData)
+|-
+| 0x30
+| 0x8
+| Raw saveimage size
+|-
+| 0x38
+| 0x2
+| SaveDataIndex
+|-
+| 0x3A
+| 0x1
+| [[#SaveDataRank]]
+|-
+| 0x3B
+| 0x25
+| Unknown. Usually zeros?
+|}
+
+This is a 0x60-byte struct.
+
+= SaveDataFileSystemExtraData =
+This is a 0x200-byte struct. Appears to match [[Savegames#Extra_data]].
+
+= InitialDataVersion2 =
+This is a 0x8210-byte struct used by [[#ISaveDataTransferManagerWithDivision]].
+
+[[Category:Services]]