Nintendo Switch Brew

Filesystem services: Difference between revisions

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Takes a type-0x19 input buffer containing a [[#FspPath]] and an input [[NCM_services#ProgramId|ProgramId]]. Returns an [[#IFileSystem]].
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.
[10.0.0+] Now takes an additional type-0x1A output buffer.


[16.0.0+] This now takes an additional input [[#ContentAttributes]].
[16.0.0+] Now takes an additional input [[#ContentAttributes]].


[17.0.0+] This now takes a type-0x6 output buffer instead of a type-0x1A output buffer.
[17.0.0+] Now takes a type-0x6 output buffer instead of a type-0x1A output buffer.
 
[20.0.0+] Now no longer takes a type-0x19 input buffer containing a [[#FspPath]] and instead takes an input [[NCM_services#StorageId|StorageId]].


== IsArchivedProgram ==
== IsArchivedProgram ==
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== RegisterProgram ==
== 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]]
Takes an input [[NCM_services#StorageId|StorageId]], an input u64 ProcessId, an input [[NCM_services#ProgramId|ProgramId]], a type-0x5 input buffer containing an [[NPDM#ACID|ACID]] [[NPDM#FsAccessControl|FsAccessControl]], and a type-0x5 input buffer containing an [[NPDM#ACI0|ACI0]] [[NPDM#FsAccessControl|FsAccessControl]].


Final FS permissions are stored as (ACI0_perms & ACID_perms). Will panic(svcBreak) when buffer sizes from ipc-rawdata are invalid.
Final FS permissions are stored as (ACI0_perms & ACID_perms). Will panic(svcBreak) when buffer sizes from ipc-rawdata are invalid.
[20.0.0+] Now takes an additional input [[#FsAccessControlRestrictionMode]].


== UnregisterProgram ==
== UnregisterProgram ==
Takes a pid. Removes registered FS permissions for that PID.
Takes an input u64 ProcessId. No output.
 
Removes registered FS permissions for that PID.


== SetEnabledProgramVerification ==
== SetEnabledProgramVerification ==
Seems to sets a global flag to inputval & 1.
Takes an input bool. No output.


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.
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.
Line 125: Line 131:
|-
|-
| 37 || [14.0.0+] CreateSaveDataFileSystemWithCreationInfo2
| 37 || [14.0.0+] CreateSaveDataFileSystemWithCreationInfo2
|-
| 38 || [20.0.0+] DetachSdCard
|-
|-
| 51 || [[#OpenSaveDataFileSystem]]
| 51 || [[#OpenSaveDataFileSystem]]
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|-
|-
| 501 || [[#OpenGameCardDetectionEventNotifier]]
| 501 || [[#OpenGameCardDetectionEventNotifier]]
|-
| 502 || [20.0.0+] OpenSdCardAwakenReadyEventNotifier
|-
|-
| 503 || [19.0.0+] OpenGameCardAwakenReadyEventNotifier
| 503 || [19.0.0+] OpenGameCardAwakenReadyEventNotifier
Line 265: Line 275:
|-
|-
| 640 || [4.0.0-7.0.1] IsSignedSystemPartitionOnSdCardValid
| 640 || [4.0.0-7.0.1] IsSignedSystemPartitionOnSdCardValid
|-
| 651 || [S2]
|-
| 660 || [S2]
|-
|-
| 700 || [5.0.0+] [[#OpenAccessFailureDetectionEventNotifier]]
| 700 || [5.0.0+] [[#OpenAccessFailureDetectionEventNotifier]]
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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.
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 nn::spl::IsDebugMode() is disabled (retail behavior), the FS sysmodule masks the permission descriptor with 0x3FFFFFFFFFFFFFFF upon process registration.


If the code were to request an invalid input type, panic. But this never happens.
If the code were to request an invalid input type, panic. But this never happens.
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| [6.0.0+] 0x2B || CanMountRegisteredUpdatePartition || 0x8000000000010000 || R- || [[#OpenRegisteredUpdatePartition]]
| [6.0.0+] 0x2B || CanMountRegisteredUpdatePartition || 0x8000000000010000 || R- || [[#OpenRegisteredUpdatePartition]]
|-
|-
| [7.0.0+] 0x2C || CanOpenSaveDataInternalStorage || 0x8000000000000000 || RW || [[#OpenSaveDataInternalStorageFileSystem]]
| [7.0.0+] 0x2C || CanOpenSaveDataInternalStorage || [-19.0.0] 0x8000000000000000 [20.0.0+] 0x8000000000000020 || RW || [[#OpenSaveDataInternalStorageFileSystem]]
|-
|-
| [7.0.0+] 0x2D || CanMountTemporaryDirectory || 0xC000000000000000 || RW ||  
| [7.0.0+] 0x2D || CanMountTemporaryDirectory || 0xC000000000000000 || RW ||  
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=== Call ===
=== Call ===
== 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"
{| class="wikitable" border="1"
|-
|-
! AccessibilityType || Name || Mask || Permission || Used by
! OperationType || Name || Mask || Used by
|-
|-
| 0x0 || CanMountLogo || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| 0x0 || CanInvalidateBisCache || 0x8000000000000080 || [[#InvalidateBisCache]]
|-
|-
| 0x1 || CanMountContentMeta || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| 0x1 || CanEraseMmc || 0x8000000000000080 || EraseMmc
|-
|-
| 0x2 || CanMountContentControl || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| [20.0.0+] 0x2 || || 0x8000100000000080 ||
|-
|-
| 0x3 || CanMountContentManual || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| [-19.0.0] 0x2 [20.0.0+] 0x3 || CanGetGameCardDeviceCertificate || 0x8000000000000010 || GetGameCardDeviceCertificate
|-
|-
| 0x4 || CanMountContentData || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| [-19.0.0] 0x3 [20.0.0+] 0x4 || CanGetGameCardIdSet || 0x8000000000000010 || GetGameCardIdSet
|-
|-
| 0x5 || CanMountApplicationPackage || 0x8000000000000801 || R- || [[#OpenFileSystem]], [[#OpenFileSystemWithPatch]], [[#OpenFileSystemWithId]]
| [-19.0.0] 0x4 [20.0.0+] 0x5 || CanFinalizeGameCardDriver || 0x8000000000000200 || FinalizeGameCardDriver
|-
|-
| 0x6 || CanMountSaveDataStorage || 0x8000000000000000 || RW ||
| [-19.0.0] 0x5 [20.0.0+] 0x6 || CanGetGameCardAsicInfo || 0x8000000000000200 || GetGameCardAsicInfo
|-
|-
| 0x7 || CanMountContentStorage || 0x8000000000000800 || RW || [[#OpenContentStorageFileSystem]]
| [-19.0.0] 0x6 [20.0.0+] 0x7 || CanGetGameCardAsicCertificate || 0x8000000000000200 || GetGameCardAsicCertificate
|-
|-
| 0x8 || CanMountImageAndVideoStorage ||0x8000000000001000 || RW || [[#OpenImageDirectoryFileSystem]]
| [20.0.0+] 0x8 || || 0x8000100000000080 ||
|-
|-
| 0x9 || CanMountCustomStorage0 || 0x8000000000000000 || RW || OpenCustomStorageFileSystem
| [20.0.0+] 0x9 || || 0x8000100000000080 ||
|-
|-
| 0xA || CanMountBisCalibrationFile || 0x8000000000000084 || RW || [[#OpenBisFileSystem]]
| [20.0.0+] 0xA || || 0x8000080000000000 ||
|-
|-
| 0xB || CanMountBisSafeMode || 0x8000000000000080 || RW || [[#OpenBisFileSystem]]
| [20.0.0+] 0xB || || 0x8000000000000010 ||
|-
|-
| 0xC || CanMountBisUser || 0x8000000000008080 || RW || [[#OpenBisFileSystem]]
| [20.0.0+] 0xC || || 0x8000100000000080 ||
|-
|-
| 0xD || CanMountBisSystem || 0x8000000000008080 || RW || [[#OpenBisFileSystem]]
| [-19.0.0] 0x7 [20.0.0+] 0xD || CanCreateSaveData || 0x8000000000002020 || [[#CreateSaveDataFileSystem]]
|-
|-
| 0xE || CanMountBisSystemProperEncryption || 0x8000000000000080 || RW || [[#OpenBisFileSystem]]
| [-19.0.0] 0x8 [20.0.0+] 0xE || CanDeleteSaveData || 0x8000000000000060 || [[#DeleteSaveDataFileSystem]], RegisterSaveDataFileSystemAtomicDeletion
|-
|-
| 0xF || CanMountBisSystemProperPartition || 0x8000000000000080 || RW || [[#OpenBisFileSystem]]
| [-19.0.0] 0x9 [20.0.0+] 0xF || CanCreateSystemSaveData || 0x8000000000000028 || CreateSaveDataFileSystemBySystemSaveDataId
|-
|-
| 0x10 || CanMountSdCard || 0xC000000000200000 || RW || [[#OpenSdCardFileSystem]]
| [-19.0.0] 0xA [20.0.0+] 0x10 || CanCreateOthersSystemSaveData || 0x8000000000000020 || CreateSaveDataFileSystemBySystemSaveDataId
|-
|-
| 0x11 || CanMountGameCard || 0x8000000000000010 || R- || [[#OpenGameCardFileSystem]]
| [-19.0.0] 0xB [20.0.0+] 0x11 || CanDeleteSystemSaveData || 0x8000000000004028 || [[#DeleteSaveDataFileSystem]], RegisterSaveDataFileSystemAtomicDeletion
|-
|-
| 0x12 || CanMountDeviceSaveData || 0x8000000000040020 || RW || [[#OpenSaveDataFileSystem]]
| [-19.0.0] 0xC [20.0.0+] 0x12 || CanOpenSaveDataInfoReader || 0x8000000000000060 || [[#OpenSaveDataInfoReaderBySaveDataSpaceId]], [[#OpenSaveDataInfoReader]]
|-
|-
| 0x13 || CanMountSystemSaveData || 0x8000000000000028 || RW || [[#OpenSaveDataFileSystemBySystemSaveDataId]]
| [-19.0.0] 0xD [20.0.0+] 0x13 || CanOpenSaveDataInfoReaderForSystem || 0x8000000000004020 || [[#OpenSaveDataInfoReaderBySaveDataSpaceId]], [[#OpenSaveDataInfoReader]]
|-
|-
| 0x14 || CanMountOthersSaveData || 0x8000000000000020 || RW || [[#OpenSaveDataFileSystem]]
| [-19.0.0] 0xE [20.0.0+] 0x14 || CanOpenSaveDataInfoReaderForInternal || 0x8000000000000040 || [[#OpenSaveDataInfoReaderWithFilter]]
|-
|-
| 0x15 || CanMountOthersSystemSaveData || 0x8000000000000020 || RW || [[#OpenSaveDataFileSystemBySystemSaveDataId]]
| [-19.0.0] 0xF [20.0.0+] 0x15 || CanOpenSaveDataMetaFile || 0x8000000000020000 || OpenSaveDataMetaFile
|-
|-
| 0x16 || CanOpenBisPartitionBootPartition1Root || 0x8000000000010082 || RW || [[#OpenBisStorage]]
| [-19.0.0] 0x10 [20.0.0+] 0x16 || CanSetCurrentPosixTime || 0x8000000000000400 || SetCurrentPosixTime, SetCurrentPosixTimeWithTimeDifference
|-
|-
| 0x17 || CanOpenBisPartitionBootPartition2Root || 0x8000000000010080 || RW || [[#OpenBisStorage]]
| [-19.0.0] 0x11 [20.0.0+] 0x17 || CanReadSaveDataFileSystemExtraData || 0x8000000000004060 || [[#ReadSaveDataFileSystemExtraData]]
|-
|-
| 0x18 || CanOpenBisPartitionUserDataRoot || 0x8000000000000080 || RW || [[#OpenBisStorage]]
| [-19.0.0] 0x12 [20.0.0+] 0x18 || CanSetGlobalAccessLogMode || 0x8000000000080000 || [[#SetGlobalAccessLogMode]]
|-
|-
| 0x19 || CanOpenBisPartitionBootConfigAndPackage2Part1 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
| [-19.0.0] 0x13 [20.0.0+] 0x19 || CanSetSpeedEmulationMode || 0x8000000000080000 || SetSpeedEmulationMode
|-
|-
| 0x1A || CanOpenBisPartitionBootConfigAndPackage2Part2 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
| [20.0.0+] 0x1A || || 0x8000000400080000 ||
|-
|-
| 0x1B || CanOpenBisPartitionBootConfigAndPackage2Part3 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
| [20.0.0+] 0x1B || || 0x8000000400080000 ||
|-
|-
| 0x1C || CanOpenBisPartitionBootConfigAndPackage2Part4 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
| [-19.0.0] 0x14 [20.0.0+] 0x1C || CanDebug || 0xC000000000000000 ||  
|-
|-
| 0x1D || CanOpenBisPartitionBootConfigAndPackage2Part5 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
| [-19.0.0] 0x15 [20.0.0+] 0x1D || CanFillBis || 0xC000000000800000 || CreatePaddingFile, DeleteAllPaddingFiles
|-
|-
| 0x1E || CanOpenBisPartitionBootConfigAndPackage2Part6 || 0x8000000000010080 || RW || [[#OpenBisStorage]]
| [2.0.0-19.0.0] 0x16 [20.0.0+] 0x1E || CanCorruptSaveData || 0xC000000001000000 || CorruptSaveDataFileSystem, CorruptSaveDataFileSystemBySaveDataSpaceId
|-
|-
| 0x1F || CanOpenBisPartitionCalibrationBinary || 0x8000000000000084 || RW || [[#OpenBisStorage]]
| [2.0.0-19.0.0] 0x17 [20.0.0+] 0x1F || CanCorruptSystemSaveData || 0x8000000001000060 || CorruptSaveDataFileSystem, CorruptSaveDataFileSystemBySaveDataSpaceId
|-
|-
| 0x20 || CanOpenBisPartitionCalibrationFile || 0x8000000000000084 || RW || [[#OpenBisStorage]]
| [2.0.0-19.0.0] 0x18 [20.0.0+] 0x20 || CanVerifySaveData || 0x8000000000000060 || [[#VerifySaveDataFileSystem]], VerifySaveDataFileSystemBySaveDataSpaceId
|-
|-
| 0x21 || CanOpenBisPartitionSafeMode || 0x8000000000000080 || RW || [[#OpenBisStorage]]
| [2.0.0-19.0.0] 0x19 [20.0.0+] 0x21 || CanDebugSaveData || 0xC000000002000000 || [[#CreateSaveDataFileSystem]], [[#OpenSaveDataFileSystem]], [[#SetSaveDataRootPath]]
|-
|-
| 0x22 || CanOpenBisPartitionUser || 0x8000000000000080 || RW || [[#OpenBisStorage]]
| [2.0.0-19.0.0] 0x1A [20.0.0+] 0x22 || CanFormatSdCard || 0x8000000004000000 || FormatSdCardFileSystem
|-
|-
| 0x23 || CanOpenBisPartitionSystem || 0x8000000000000080 || RW || [[#OpenBisStorage]]
| [3.0.0-19.0.0] 0x1B [20.0.0+] 0x23 || CanGetRightsId || 0x8000000008000000 || GetRightsId, GetRightsIdAndKeyGenerationByPath, GetRightsIdByPath
|-
|-
| 0x24 || CanOpenBisPartitionSystemProperEncryption || 0x8000000000000080 || RW || [[#OpenBisStorage]]
| [3.0.0-19.0.0] 0x1C [20.0.0+] 0x24 || CanRegisterExternalKey || 0x8000000010000000 || RegisterExternalKey, UnregisterAllExternalKey
|-
|-
| 0x25 || CanOpenBisPartitionSystemProperPartition || 0x8000000000000080 || RW || [[#OpenBisStorage]]
| [4.0.0-19.0.0] 0x1D [20.0.0+] 0x25 || CanSetEncryptionSeed || 0x8000000000000800 || [[#SetSdCardEncryptionSeed]]
|-
|-
| 0x26 || CanOpenBisPartitionDeviceTreeBlob || 0x8000002000000080 || RW || [[#OpenBisStorage]]
| [4.0.0-19.0.0] 0x1E [20.0.0+] 0x26 || CanWriteSaveDataFileSystemExtraDataTimeStamp || 0x8000000000000020 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
|-
|-
| [3.0.0+] 0x27 || CanOpenSdCardStorage || 0xC000000000200000 || RW ||  
| [4.0.0-19.0.0] 0x1F [20.0.0+] 0x27 || CanWriteSaveDataFileSystemExtraDataFlags || 0x8000000000004020 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
|-
|-
| [3.0.0+] 0x28 || CanOpenGameCardStorage || 0x8000000000000100 || RW || [[#OpenGameCardStorage]], [[#EraseGameCard]] (bit1), [[#WriteToGameCard]] (bit1), [[#GetGameCardErrorInfo]] (bit1), [[#EraseAndWriteParamDirectly]] (bit1), [[#ReadParamDirectly]] (bit1), [[#ForceEraseGameCard]] (bit1)
| [4.0.0-19.0.0] 0x20 [20.0.0+] 0x28 || CanWriteSaveDataFileSystemExtraDataCommitId || 0x8000000000000020 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
|-
|-
| [4.0.0+] 0x29 || CanMountSystemDataPrivate || 0x8000000000100008 || R- || [[#OpenFileSystem]], [[#OpenDataStorageByDataId]]
| [5.0.0-19.0.0] 0x21 [20.0.0+] 0x29 || CanWriteSaveDataFileSystemExtraDataAll || 0x8000000000000000 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
|-
|-
| [5.0.0+] 0x2A || CanMountHost || 0xC000000000400000 || RW || [[#OpenHostFileSystem]]
| [5.0.0-19.0.0] 0x22 [20.0.0+] 0x2A || CanExtendSaveData || 0x8000000000002020 || ExtendSaveDataFileSystem
|-
|-
| [6.0.0+] 0x2B || CanMountRegisteredUpdatePartition || 0x8000000000010000 || R- || [[#OpenRegisteredUpdatePartition]]
| [5.0.0-19.0.0] 0x23 [20.0.0+] 0x2B || CanExtendSystemSaveData || 0x8000000000000028 || ExtendSaveDataFileSystem
|-
|-
| [7.0.0+] 0x2C || CanOpenSaveDataInternalStorage || 0x8000000000000000 || RW || [[#OpenSaveDataInternalStorageFileSystem]]
| [5.0.0-19.0.0] 0x24 [20.0.0+] 0x2C || CanExtendOthersSystemSaveData || 0x8000000000000020 || ExtendSaveDataFileSystem
|-
|-
| [7.0.0+] 0x2D || CanMountTemporaryDirectory || 0xC000000000000000 || RW ||  
| [5.0.0-19.0.0] 0x25 [20.0.0+] 0x2D || CanRegisterUpdatePartition || 0x8000000020000000 || RegisterUpdatePartition
|-
|-
| [11.0.0+] 0x2E || CanMountAllBaseFilesystem || 0x8000000000000000 || RW || OpenBaseFileSystem
| [5.0.0-19.0.0] 0x26 [20.0.0+] 0x2E || CanOpenSaveDataTransferManager || 0x8000000040000000 || [[#OpenSaveDataTransferManager]]
|-
|-
| [15.0.0+] 0x2F || CanNotMount || 0x0000000000000000 || -- || OpenCustomStorageFileSystem
| [5.0.0-19.0.0] 0x27 [20.0.0+] 0x2F || CanOpenSaveDataTransferManagerVersion2 || 0x8000000200000000 || [[#OpenSaveDataTransferManagerVersion2]]
|}
 
=== Call ===
{| class="wikitable" border="1"
|-
|-
! OperationType || Name || Mask || Used by
| [5.0.0-19.0.0] 0x28 [20.0.0+] 0x30 || CanOpenSaveDataTransferManagerForSaveDataRepair || 0x8000000200000000 || OpenSaveDataTransferManagerForSaveDataRepair
|-
|-
| 0x0 || CanInvalidateBisCache || 0x8000000000000080 || [[#InvalidateBisCache]]
| [5.0.0-19.0.0] 0x29 [20.0.0+] 0x31 || CanOpenSaveDataTransferManagerForSaveDataRepairTool || 0x8000000000000000 || OpenSaveDataTransferManagerForSaveDataRepair
|-
|-
| 0x1 || CanEraseMmc || 0x8000000000000080 || EraseMmc
| [5.0.0-19.0.0] 0x2A [20.0.0+] 0x32 || CanOpenOpenSaveDataTransferProhibiter || 0x8000000200002000 || [[#OpenSaveDataTransferProhibiter]]
|-
|-
| [20.0.0+] 0x2 || || 0x8000100000000080 ||
| [5.0.0-19.0.0] 0x2B [20.0.0+] 0x33 || CanOpenSaveDataMover || 0x8000001000000000 || [[#OpenSaveDataMover]]
|-
|-
| [-19.0.0] 0x2 [20.0.0+] 0x3 || CanGetGameCardDeviceCertificate || 0x8000000000000010 || GetGameCardDeviceCertificate
| [5.0.0-19.0.0] 0x2C [20.0.0+] 0x34 || CanOpenBisWiper || 0x8000000000000800 || [[#OpenBisWiper]]
|-
|-
| [-19.0.0] 0x3 [20.0.0+] 0x4 || CanGetGameCardIdSet || 0x8000000000000010 || GetGameCardIdSet
| [5.0.0-19.0.0] 0x2D [20.0.0+] 0x35 || CanListAccessibleSaveDataOwnerId || 0x8000000240002000 || [[#ListAccessibleSaveDataOwnerId]]
|-
|-
| [-19.0.0] 0x4 [20.0.0+] 0x5 || CanFinalizeGameCardDriver || 0x8000000000000200 || FinalizeGameCardDriver
| [5.0.0-19.0.0] 0x2E [20.0.0+] 0x36 || CanControlMmcPatrol || 0x8000000000000000 || SuspendMmcPatrol, ResumeMmcPatrol
|-
|-
| [-19.0.0] 0x5 [20.0.0+] 0x6 || CanGetGameCardAsicInfo || 0x8000000000000200 || GetGameCardAsicInfo
| [5.0.0-19.0.0] 0x2F [20.0.0+] 0x37 || CanOverrideSaveDataTransferTokenSignVerificationKey || 0x8000000000000000 || OverrideSaveDataTransferTokenSignVerificationKey
|-
|-
| [-19.0.0] 0x6 [20.0.0+] 0x7 || CanGetGameCardAsicCertificate || 0x8000000000000200 || GetGameCardAsicCertificate
| [5.1.0-19.0.0] 0x30 [20.0.0+] 0x38 || CanOpenSdCardDetectionEventNotifier || 0x8000000080200000 || [[#OpenSdCardDetectionEventNotifier]]
|-
|-
| [20.0.0+] 0x8 ||  || 0x8000100000000080 ||
| [20.0.0+] 0x39 ||  || 0x8000000000200000 ||
|-
|-
| [20.0.0+] 0x9 || || 0x8000100000000080 ||
| [6.0.0-19.0.0] 0x31 [20.0.0+] 0x3A || CanOpenGameCardDetectionEventNotifier || 0x8000000080000110 || [[#OpenGameCardDetectionEventNotifier]]
|-
|-
| [20.0.0+] 0xA || || 0x8000080000000000 ||
| [20.0.0+] 0x3B || CanOpenGameCardAwakenReadyEventNotifier || 0x8000000080000110 || OpenGameCardAwakenReadyEventNotifier
|-
|-
| [20.0.0+] 0xB || || 0x8000000000000010 ||
| [6.0.0-19.0.0] 0x32 [20.0.0+] 0x3C || CanOpenSystemDataUpdateEventNotifier || 0x8000000000100008 || OpenSystemDataUpdateEventNotifier
|-
|-
| [20.0.0+] 0xC || || 0x8000100000000080 ||
| [6.0.0-19.0.0] 0x33 [20.0.0+] 0x3D || CanNotifySystemDataUpdateEvent || 0x8000000000010000 || NotifySystemDataUpdateEvent
|-
|-
| [-19.0.0] 0x7 [20.0.0+] 0xD || CanCreateSaveData || 0x8000000000002020 || [[#CreateSaveDataFileSystem]]
| [6.0.0-19.0.0] 0x34 [20.0.0+] 0x3E || CanOpenAccessFailureDetectionEventNotifier || 0x8000000100000000 || [[#OpenAccessFailureDetectionEventNotifier]]
|-
|-
| [-19.0.0] 0x8 [20.0.0+] 0xE || CanDeleteSaveData || 0x8000000000000060 || [[#DeleteSaveDataFileSystem]], RegisterSaveDataFileSystemAtomicDeletion
| [6.0.0-19.0.0] 0x35 [20.0.0+] 0x3F || CanGetAccessFailureDetectionEvent || 0x8000000100000000 || GetAccessFailureDetectionEvent
|-
|-
| [-19.0.0] 0x9 [20.0.0+] 0xF || CanCreateSystemSaveData || 0x8000000000000028 || CreateSaveDataFileSystemBySystemSaveDataId
| [6.0.0-19.0.0] 0x36 [20.0.0+] 0x40 || CanIsAccessFailureDetected || 0x8000000100000000 || IsAccessFailureDetected
|-
|-
| [-19.0.0] 0xA [20.0.0+] 0x10 || CanCreateOthersSystemSaveData || 0x8000000000000020 || CreateSaveDataFileSystemBySystemSaveDataId
| [6.0.0-19.0.0] 0x37 [20.0.0+] 0x41 || CanResolveAccessFailure || 0x8000000100000000 || ResolveAccessFailure
|-
|-
| [-19.0.0] 0xB [20.0.0+] 0x11 || CanDeleteSystemSaveData || 0x8000000000004028 || [[#DeleteSaveDataFileSystem]], RegisterSaveDataFileSystemAtomicDeletion
| [6.0.0-19.0.0] 0x38 [20.0.0+] 0x42 || CanAbandonAccessFailure || 0x8000000100000000 || AbandonAccessFailure
|-
|-
| [-19.0.0] 0xC [20.0.0+] 0x12 || CanOpenSaveDataInfoReader || 0x8000000000000060 || [[#OpenSaveDataInfoReaderBySaveDataSpaceId]], [[#OpenSaveDataInfoReader]]
| [8.0.0-19.0.0] 0x39 [20.0.0+] 0x43 || CanQuerySaveDataInternalStorageTotalSize || 0x8000000040000000 || QuerySaveDataInternalStorageTotalSize
|-
|-
| [-19.0.0] 0xD [20.0.0+] 0x13 || CanOpenSaveDataInfoReaderForSystem || 0x8000000000004020 || [[#OpenSaveDataInfoReaderBySaveDataSpaceId]], [[#OpenSaveDataInfoReader]]
| [9.0.0-19.0.0] 0x3A [20.0.0+] 0x44 || CanGetSaveDataCommitId || 0x8000000200000020 || [[#GetSaveDataCommitId]]
|-
|-
| [-19.0.0] 0xE [20.0.0+] 0x14 || CanOpenSaveDataInfoReaderForInternal || 0x8000000000000040 || [[#OpenSaveDataInfoReaderWithFilter]]
| [20.0.0+] 0x45 ||   || 0x8000000000200000 ||
|-
|-
| [-19.0.0] 0xF [20.0.0+] 0x15 || CanOpenSaveDataMetaFile || 0x8000000000020000 || OpenSaveDataMetaFile
| [9.0.0-19.0.0] 0x3B [20.0.0+] 0x46 || CanSetSdCardAccessibility || 0x8000000000200000 || SetSdCardAccessibility
|-
|-
| [-19.0.0] 0x10 [20.0.0+] 0x16 || CanSetCurrentPosixTime || 0x8000000000000400 || SetCurrentPosixTime, SetCurrentPosixTimeWithTimeDifference
| [9.0.0-19.0.0] 0x3C [20.0.0+] 0x47 || CanSimulateDevice || 0x4000000000000000 || SimulateDeviceDetectionEvent, SetSimulationEvent, ClearSimulationEvent
|-
|-
| [-19.0.0] 0x11 [20.0.0+] 0x17 || CanReadSaveDataFileSystemExtraData || 0x8000000000004060 || [[#ReadSaveDataFileSystemExtraData]]
| [9.0.0-19.0.0] 0x3D [20.0.0+] 0x48 || CanCreateSaveDataWithHashSalt || 0x8000000000000000 || [[#CreateSaveDataFileSystem]], [[#CreateSaveDataFileSystemWithHashSalt]]
|-
|-
| [-19.0.0] 0x12 [20.0.0+] 0x18 || CanSetGlobalAccessLogMode || 0x8000000000080000 || [[#SetGlobalAccessLogMode]]
| [9.0.0-19.0.0] 0x3E [20.0.0+] 0x49 || CanRegisterProgramIndexMapInfo || 0x8000000400000000 || RegisterProgramIndexMapInfo
|-
|-
| [-19.0.0] 0x13 [20.0.0+] 0x19 || CanSetSpeedEmulationMode || 0x8000000000080000 || SetSpeedEmulationMode
| [9.0.0-19.0.0] 0x3F [20.0.0+] 0x4A || CanChallengeCardExistence || 0x8000000000000010 || ChallengeCardExistence
|-
|-
| [20.0.0+] 0x1A || || 0x8000000400080000 ||
| [9.0.0-19.0.0] 0x40 [20.0.0+] 0x4B || CanCreateOwnSaveData || 0x8000000800000000 || [[#CreateSaveDataFileSystem]], CreateSaveDataFileSystemWithHashSalt
|-
|-
| [20.0.0+] 0x1B || || 0x8000000400080000 ||
| [9.0.0-19.0.0] 0x41 [20.0.0+] 0x4C || CanDeleteOwnSaveData || 0x8000000800000000 || [[#DeleteSaveDataFileSystem]]
|-
|-
| [-19.0.0] 0x14 [20.0.0+] 0x1C || CanDebug || 0xC000000000000000 ||  
| [10.0.0-19.0.0] 0x42 [20.0.0+] 0x4D || CanReadOwnSaveDataFileSystemExtraData || 0x8000000800000000 || [[#ReadSaveDataFileSystemExtraData]]
|-
|-
| [-19.0.0] 0x15 [20.0.0+] 0x1D || CanFillBis || 0xC000000000800000 || CreatePaddingFile, DeleteAllPaddingFiles
| [10.0.0-19.0.0] 0x43 [20.0.0+] 0x4E || CanExtendOwnSaveData || 0x8000000800000000 || ExtendSaveDataFileSystem
|-
|-
| [2.0.0-19.0.0] 0x16 [20.0.0+] 0x1E || CanCorruptSaveData || 0xC000000001000000 || CorruptSaveDataFileSystem, CorruptSaveDataFileSystemBySaveDataSpaceId
| [10.2.0-19.0.0] 0x44 [20.0.0+] 0x4F || CanOpenOwnSaveDataTransferProhibiter || 0x8000000800000000 || [[#OpenSaveDataTransferProhibiter]]
|-
|-
| [2.0.0-19.0.0] 0x17 [20.0.0+] 0x1F || CanCorruptSystemSaveData || 0x8000000001000060 || CorruptSaveDataFileSystem, CorruptSaveDataFileSystemBySaveDataSpaceId
| [11.0.0-19.0.0] 0x45 [20.0.0+] 0x50 || CanFindOwnSaveDataWithFilter || 0x8000000800000000 || [[#FindSaveDataWithFilter]]
|-
|-
| [2.0.0-19.0.0] 0x18 [20.0.0+] 0x20 || CanVerifySaveData || 0x8000000000000060 || [[#VerifySaveDataFileSystem]], VerifySaveDataFileSystemBySaveDataSpaceId
| [13.0.0-19.0.0] 0x46 [20.0.0+] 0x51 || CanOpenSaveDataTransferManagerForRepair || 0x8000000000000020 || [[#OpenSaveDataTransferManagerForRepair]]
|-
|-
| [2.0.0-19.0.0] 0x19 [20.0.0+] 0x21 || CanDebugSaveData || 0xC000000002000000 || [[#CreateSaveDataFileSystem]], [[#OpenSaveDataFileSystem]], [[#SetSaveDataRootPath]]
| [13.0.0-19.0.0] 0x47 [20.0.0+] 0x52 || CanSetDebugConfiguration || 0x8000000000000000 || SetDebugOption, UnsetDebugOption
|-
|-
| [2.0.0-19.0.0] 0x1A [20.0.0+] 0x22 || CanFormatSdCard || 0x8000000004000000 || FormatSdCardFileSystem
| [15.0.0-19.0.0] 0x48 [20.0.0+] 0x53 || CanOpenDataStorageByPath || 0x8000000000000000 || OpenDataStorageByPath
|-
|-
| [3.0.0-19.0.0] 0x1B [20.0.0+] 0x23 || CanGetRightsId || 0x8000000008000000 || GetRightsId, GetRightsIdAndKeyGenerationByPath, GetRightsIdByPath
| [17.0.0-19.0.0] 0x49 [20.0.0+] 0x54|| CanNotifyErrorContextServiceReady || 0x8000004000000000 || NotifyErrorContextServiceReady
|-
|-
| [3.0.0-19.0.0] 0x1C [20.0.0+] 0x24 || CanRegisterExternalKey || 0x8000000010000000 || RegisterExternalKey, UnregisterAllExternalKey
| [17.0.0-19.0.0] 0x4A || CanGetProgramId || 0x8000000008000000 || GetProgramId, Removed in 20.0.0
|-
|-
| [4.0.0-19.0.0] 0x1D [20.0.0+] 0x25 || CanSetEncryptionSeed || 0x8000000000000800 || [[#SetSdCardEncryptionSeed]]
| [20.0.0+] 0x55 || CanGetContentStorageInfo || 0x8000000000000800 ||
|-
|-
| [4.0.0-19.0.0] 0x1E [20.0.0+] 0x26 || CanWriteSaveDataFileSystemExtraDataTimeStamp || 0x8000000000000020 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
| [20.0.0+] 0x56 || CanDetachSdCard || 0x8000000004000000 ||
|-
|-
| [4.0.0-19.0.0] 0x1F [20.0.0+] 0x27 || CanWriteSaveDataFileSystemExtraDataFlags || 0x8000000000004020 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
| [20.0.0+] 0x57 || CanSetSdCardActivationMode || 0x8000000004000000 ||
|-
|}
| [4.0.0-19.0.0] 0x20 [20.0.0+] 0x28 || CanWriteSaveDataFileSystemExtraDataCommitId || 0x8000000000000020 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
 
|-
== OpenFileSystem ==
| [5.0.0-19.0.0] 0x21 [20.0.0+] 0x29 || CanWriteSaveDataFileSystemExtraDataAll || 0x8000000000000000 || WriteSaveDataFileSystemExtraData, WriteSaveDataFileSystemExtraDataWithMask
Takes a type-0x19 input buffer containing a [[#FspPath]] and an input [[#FileSystemProxyType]]. Returns an [[#IFileSystem]].
|-
 
| [5.0.0-19.0.0] 0x22 [20.0.0+] 0x2A || CanExtendSaveData || 0x8000000000002020 || ExtendSaveDataFileSystem
[2.0.0+] This function was removed.
|-
 
| [5.0.0-19.0.0] 0x23 [20.0.0+] 0x2B || CanExtendSystemSaveData || 0x8000000000000028 || ExtendSaveDataFileSystem
== SetCurrentProcess ==
|-
Takes an input u64 ProcessId. No output.
| [5.0.0-19.0.0] 0x24 [20.0.0+] 0x2C || CanExtendOthersSystemSaveData || 0x8000000000000020 || ExtendSaveDataFileSystem
 
|-
== OpenFileSystemWithPatch ==
| [5.0.0-19.0.0] 0x25 [20.0.0+] 0x2D || CanRegisterUpdatePartition || 0x8000000020000000 || RegisterUpdatePartition
Takes an input [[#FileSystemProxyType]] and an input [[NCM_services#ProgramId|ProgramId]]. Returns an [[#IFileSystem]].
|-
 
| [5.0.0-19.0.0] 0x26 [20.0.0+] 0x2E || CanOpenSaveDataTransferManager || 0x8000000040000000 || [[#OpenSaveDataTransferManager]]
The [[#FileSystemProxyType]] must be '''Manual'''.
|-
 
| [5.0.0-19.0.0] 0x27 [20.0.0+] 0x2F || CanOpenSaveDataTransferManagerVersion2 || 0x8000000200000000 || [[#OpenSaveDataTransferManagerVersion2]]
Note: web-applet strings refer to both this cmd and [[#OpenFileSystemWithId]] as "MountContent", but official nn_sf_sync symbols use "OpenXX" names.
|-
 
| [5.0.0-19.0.0] 0x28 [20.0.0+] 0x30 || CanOpenSaveDataTransferManagerForSaveDataRepair || 0x8000000200000000 || OpenSaveDataTransferManagerForSaveDataRepair
== OpenFileSystemWithIdObsolete ==
|-
Takes a type-0x19 input buffer containing a [[#FspPath]], an input [[#FileSystemProxyType]] and an input [[NCM_services#ProgramId|ProgramId]]. Returns an [[#IFileSystem]].
| [5.0.0-19.0.0] 0x29 [20.0.0+] 0x31 || CanOpenSaveDataTransferManagerForSaveDataRepairTool || 0x8000000000000000 || OpenSaveDataTransferManagerForSaveDataRepair
 
|-
The [[#IFileSystem]] must be '''Meta''' if the NCA type is 0.
| [5.0.0-19.0.0] 0x2A [20.0.0+] 0x32 || CanOpenOpenSaveDataTransferProhibiter || 0x8000000200002000 || [[#OpenSaveDataTransferProhibiter]]
 
|-
The input buffer is the output string path from [[NS_Services#GetApplicationContentPath|GetApplicationContentPath]].
| [5.0.0-19.0.0] 0x2B [20.0.0+] 0x33 || CanOpenSaveDataMover || 0x8000001000000000 || [[#OpenSaveDataMover]]
 
|-
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.
| [5.0.0-19.0.0] 0x2C [20.0.0+] 0x34 || CanOpenBisWiper || 0x8000000000000800 || [[#OpenBisWiper]]
 
|-
The official "MountApplicationPackage" func uses this with in64=0 and [[#FileSystemProxyType]] '''Package'''.
| [5.0.0-19.0.0] 0x2D [20.0.0+] 0x35 || CanListAccessibleSaveDataOwnerId || 0x8000000240002000 || [[#ListAccessibleSaveDataOwnerId]]
 
|-
After the [[#FileSystemProxyType]] specific permissions are checked, it then gets the func retval for permissions-type 0x25 and func0.
| [5.0.0-19.0.0] 0x2E [20.0.0+] 0x36 || CanControlMmcPatrol || 0x8000000000000000 || SuspendMmcPatrol, ResumeMmcPatrol
 
|-
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.
| [5.0.0-19.0.0] 0x2F [20.0.0+] 0x37 || CanOverrideSaveDataTransferTokenSignVerificationKey || 0x8000000000000000 || OverrideSaveDataTransferTokenSignVerificationKey
 
|-
== OpenFileSystemWithId ==
| [5.1.0-19.0.0] 0x30 [20.0.0+] 0x38 || CanOpenSdCardDetectionEventNotifier || 0x8000000080200000 || [[#OpenSdCardDetectionEventNotifier]]
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]].
|-
 
| [20.0.0+] 0x39 ||  || 0x8000000000200000 ||
== OpenBisFileSystem ==
|-
Takes a type-0x19 input buffer containing a [[#FspPath]] and an input [[#BisPartitionId]]. Returns an [[#IFileSystem]].
| [6.0.0-19.0.0] 0x31 [20.0.0+] 0x3A || CanOpenGameCardDetectionEventNotifier || 0x8000000080000110 || [[#OpenGameCardDetectionEventNotifier]]
 
|-
Official user-process code sets instr[0] = 0 normally.
| [20.0.0+] 0x3B ||  || 0x8000000080000110 ||
 
|-
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.
| [6.0.0-19.0.0] 0x32 [20.0.0+] 0x3C || CanOpenSystemDataUpdateEventNotifier || 0x8000000000100008 || OpenSystemDataUpdateEventNotifier
 
|-
== OpenBisStorage ==
| [6.0.0-19.0.0] 0x33 [20.0.0+] 0x3D || CanNotifySystemDataUpdateEvent || 0x8000000000010000 || NotifySystemDataUpdateEvent
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.
|-
 
| [6.0.0-19.0.0] 0x34 [20.0.0+] 0x3E || CanOpenAccessFailureDetectionEventNotifier || 0x8000000100000000 || [[#OpenAccessFailureDetectionEventNotifier]]
== InvalidateBisCache ==
|-
Seems to invalidate the Bis cache for MBR/GPT after overwriting that data via the OpenBisStorage IStorage. Used by [[SystemInitializer]].
| [6.0.0-19.0.0] 0x35 [20.0.0+] 0x3F || CanGetAccessFailureDetectionEvent || 0x8000000100000000 || GetAccessFailureDetectionEvent
 
|-
== DeleteSaveDataFileSystem ==
| [6.0.0-19.0.0] 0x36 [20.0.0+] 0x40 || CanIsAccessFailureDetected || 0x8000000100000000 || IsAccessFailureDetected
Takes an input u64.
|-
 
| [6.0.0-19.0.0] 0x37 [20.0.0+] 0x41 || CanResolveAccessFailure || 0x8000000100000000 || ResolveAccessFailure
== CreateSaveDataFileSystem ==
|-
Takes a 0x40-byte [[#SaveDataAttribute]], a 0x40-byte [[#SaveDataCreationInfo]], and a 0x10-byte input struct which governs creation of a saveMeta file.
| [6.0.0-19.0.0] 0x38 [20.0.0+] 0x42 || CanAbandonAccessFailure || 0x8000000100000000 || AbandonAccessFailure
 
|-
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.
| [8.0.0-19.0.0] 0x39 [20.0.0+] 0x43 || CanQuerySaveDataInternalStorageTotalSize || 0x8000000040000000 || QuerySaveDataInternalStorageTotalSize
 
|-
Creates non-system savedata.
| [9.0.0-19.0.0] 0x3A [20.0.0+] 0x44 || CanGetSaveDataCommitId || 0x8000000200000020 || [[#GetSaveDataCommitId]]
 
|-
== CreateSaveDataFileSystemBySystemSaveDataId ==
| [20.0.0+] 0x45 ||  || 0x8000000000200000 ||
Takes a 0x40-byte [[#SaveDataAttribute]] and a 0x40-byte [[#SaveDataCreationInfo]].
|-
 
| [9.0.0-19.0.0] 0x3B [20.0.0+] 0x46 || CanSetSdCardAccessibility || 0x8000000000200000 || SetSdCardAccessibility
Creates savedata in the SYSTEM [[Flash_Filesystem|NAND]] partition.
|-
 
| [9.0.0-19.0.0] 0x3C [20.0.0+] 0x47 || CanSimulateDevice || 0x4000000000000000 || SimulateDeviceDetectionEvent, SetSimulationEvent, ClearSimulationEvent
== OpenGameCardStorage ==
|-
Takes two input u32s (gamecard handle, partition ID), and returns an [[#IStorage]] for the [[Gamecard_Format|partition]].
| [9.0.0-19.0.0] 0x3D [20.0.0+] 0x48 || CanCreateSaveDataWithHashSalt || 0x8000000000000000 || [[#CreateSaveDataFileSystem]], [[#CreateSaveDataFileSystemWithHashSalt]]
 
|-
== OpenGameCardFileSystem ==
| [9.0.0-19.0.0] 0x3E [20.0.0+] 0x49 || CanRegisterProgramIndexMapInfo || 0x8000000400000000 || RegisterProgramIndexMapInfo
Takes two input u32s, with the second u32 located at +4 in rawdata after the first u32. Returns an [[#IFileSystem]].
|-
 
| [9.0.0-19.0.0] 0x3F [20.0.0+] 0x4A || CanChallengeCardExistence || 0x8000000000000010 || ChallengeCardExistence
Mounts a [[Gamecard_Partition|gamecard partition]].
|-
| [9.0.0-19.0.0] 0x40 [20.0.0+] 0x4B || CanCreateOwnSaveData || 0x8000000800000000 || [[#CreateSaveDataFileSystem]], CreateSaveDataFileSystemWithHashSalt
|-
| [9.0.0-19.0.0] 0x41 [20.0.0+] 0x4C || CanDeleteOwnSaveData || 0x8000000800000000 || [[#DeleteSaveDataFileSystem]]
|-
| [10.0.0-19.0.0] 0x42 [20.0.0+] 0x4D || CanReadOwnSaveDataFileSystemExtraData || 0x8000000800000000 || [[#ReadSaveDataFileSystemExtraData]]
|-
| [10.0.0-19.0.0] 0x43 [20.0.0+] 0x4E || CanExtendOwnSaveData || 0x8000000800000000 || ExtendSaveDataFileSystem
|-
| [10.2.0-19.0.0] 0x44 [20.0.0+] 0x4F || CanOpenOwnSaveDataTransferProhibiter || 0x8000000800000000 || [[#OpenSaveDataTransferProhibiter]]
|-
| [11.0.0-19.0.0] 0x45 [20.0.0+] 0x50 || CanFindOwnSaveDataWithFilter || 0x8000000800000000 || [[#FindSaveDataWithFilter]]
|-
| [13.0.0-19.0.0] 0x46 [20.0.0+] 0x51 || CanOpenSaveDataTransferManagerForRepair || 0x8000000000000020 || [[#OpenSaveDataTransferManagerForRepair]]
|-
| [13.0.0-19.0.0] 0x47 [20.0.0+] 0x52 || CanSetDebugConfiguration || 0x8000000000000000 || SetDebugOption, UnsetDebugOption
|-
| [15.0.0-19.0.0] 0x48 [20.0.0+] 0x53 || CanOpenDataStorageByPath || 0x8000000000000000 || OpenDataStorageByPath
|-
| [17.0.0-19.0.0] 0x49 [20.0.0+] 0x54|| CanNotifyErrorContextServiceReady || 0x8000004000000000 || NotifyErrorContextServiceReady
|-
| [17.0.0-19.0.0] 0x4A || CanGetProgramId || 0x8000000008000000 || GetProgramId, Removed in 20.0.0
|-
| [20.0.0+] 0x55 ||  || 0x8000000000000800 ||
|-
| [20.0.0+] 0x56 ||  || 0x8000000004000000 ||
|-
| [20.0.0+] 0x57 ||  || 0x8000000004000000 ||
|}


== OpenFileSystem ==
== CreateSaveDataFileSystemWithHashSalt ==
Takes a type-0x19 input buffer containing a [[#FspPath]] and an input [[#FileSystemProxyType]]. Returns an [[#IFileSystem]].
Takes a total of 0xB0-bytes of input, no output.


[2.0.0+] This function was removed.
== 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.


== SetCurrentProcess ==
Returns an [[#IFileSystem]].
Takes an input u64 ProcessId. No output.


== OpenFileSystemWithPatch ==
Permissions aren't checked until the specified save is successfully found.
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].
Only one process (specifically only one [[#IFileSystem]] session) can mount a given savedata at any given time (this includes SystemSaveData).


Note: web-applet strings refer to both this cmd and [[#OpenFileSystemWithId]] as "MountContent", but official nn_sf_sync symbols use "OpenXX" names.
== OpenSaveDataFileSystemBySystemSaveDataId ==
Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte [[#SaveDataAttribute]]. Web-applet only uses value0 for the input u8.


== OpenFileSystemWithIdObsolete ==
Returns an [[#IFileSystem]].
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.
Mounts savedata in the SYSTEM [[Flash_Filesystem|NAND]] partition.


The input buffer is the output string path from [[NS_Services#GetApplicationContentPath|GetApplicationContentPath]].
== OpenReadOnlySaveDataFileSystem ==
Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte [[#SaveDataAttribute]], and returns an [[#IFileSystem]].


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.
Mounts SaveData as ReadOnly.


The official "MountApplicationPackage" func uses this with in64=0 and [[#FileSystemProxyType]] '''Package'''.
== ReadSaveDataFileSystemExtraDataBySaveDataSpaceId ==
Takes an input u8 [[#SaveDataSpaceId]], an input u64 saveID, and a type-0x6 output buffer containing the [[#SaveDataFileSystemExtraData]].


After the [[#FileSystemProxyType]] specific permissions are checked, it then gets the func retval for permissions-type 0x25 and func0.
== ReadSaveDataFileSystemExtraData ==
Takes an input u64 saveID and a type-0x6 output buffer containing the [[#SaveDataFileSystemExtraData]].


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.
== OpenSaveDataInfoReader ==
No input, returns an output [[#ISaveDataInfoReader]].


== OpenFileSystemWithId ==
== OpenSaveDataInfoReaderBySaveDataSpaceId ==
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]].
Takes an input u8 [[#SaveDataSpaceId]], returns an output [[#ISaveDataInfoReader]].


== OpenBisFileSystem ==
== FindSaveDataWithFilter ==
Takes a type-0x19 input buffer containing a [[#FspPath]] and an input [[#BisPartitionId]]. Returns an [[#IFileSystem]].
Takes a total of 0x50-bytes of input, returns 8-bytes of output and a type-0x6 output buffer.


Official user-process code sets instr[0] = 0 normally.
== OpenSaveDataInfoReaderWithFilter ==
Takes a total of 0x50-bytes of input, returns an [[#ISaveDataInfoReader]].


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.
== OpenSaveDataTransferManager ==
No input, returns an [[#ISaveDataTransferManager]].


== OpenBisStorage ==
== OpenSaveDataTransferManagerVersion2 ==
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.
No input, returns an [[#ISaveDataTransferManagerWithDivision]].


== InvalidateBisCache ==
== OpenSaveDataTransferProhibiter ==
Seems to invalidate the Bis cache for MBR/GPT after overwriting that data via the OpenBisStorage IStorage. Used by [[SystemInitializer]].
Takes an input u64, returns an [[#ISaveDataTransferProhibiter]].


== DeleteSaveDataFileSystem ==
== ListAccessibleSaveDataOwnerId ==
Takes an input u64.
Takes a total of 0x10-bytes of input, returns 4-bytes of output and a type-0x6 output buffer.


== CreateSaveDataFileSystem ==
== OpenSaveDataTransferManagerForSaveDataRepair ==
Takes a 0x40-byte [[#SaveDataAttribute]], a 0x40-byte [[#SaveDataCreationInfo]], and a 0x10-byte input struct which governs creation of a saveMeta file.
No input, returns an output [[#ISaveDataTransferManagerForSaveDataRepair]].


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.
== OpenSaveDataMover ==
Takes 2 input [[#SaveDataSpaceId]], an input u64 size and a TransferMemory handle. Returns an output [[#ISaveDataMover]].


Creates non-system savedata.
== OpenSaveDataTransferManagerForRepair ==
No input, returns an output [[#ISaveDataTransferManagerForRepair]].


== CreateSaveDataFileSystemBySystemSaveDataId ==
== OpenContentStorageFileSystem ==
Takes a 0x40-byte [[#SaveDataAttribute]] and a 0x40-byte [[#SaveDataCreationInfo]].
Takes a [[#ContentStorageId]]. Invalid values return 0x2EE202.


Creates savedata in the SYSTEM [[Flash_Filesystem|NAND]] partition.
Returns an [[#IFileSystem]] with NCA files. The read data from these files is identical to the data read by [[NCM_services#ReadContentIdFile]].


== OpenGameCardStorage ==
== OpenCloudBackupWorkStorageFileSystem ==
Takes two input u32s (gamecard handle, partition ID), and returns an [[#IStorage]] for the [[Gamecard_Format|partition]].
Takes 4-bytes of input, returns an [[#IFileSystem]].


== OpenGameCardFileSystem ==
== OpenCustomStorageFileSystem ==
Takes two input u32s, with the second u32 located at +4 in rawdata after the first u32. Returns an [[#IFileSystem]].
Takes a [[#CustomStorageId]]. Invalid values return 0x2EE202.


Mounts a [[Gamecard_Partition|gamecard partition]].
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.


== CreateSaveDataFileSystemWithHashSalt ==
== OpenDataStorageByDataId ==
Takes a total of 0xB0-bytes of input, no output.
Takes a [[NCM_services#StorageId|StorageID]] and a [[NCM_services#DataId|DataId]].


== OpenSaveDataFileSystem ==
Returns a [[IPC_Marshalling#Domain_message|domain object ID]] implementing the [[#IStorage]] interface for data archives.
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]].
[[NCA|PublicData]] is exempt from the [[#Permissions|permissions]] check.


Permissions aren't checked until the specified save is successfully found.
== OpenDataFileSystemWithProgramIndex ==
Takes an input u8, returns an [[#IFileSystem]].


Only one process (specifically only one [[#IFileSystem]] session) can mount a given savedata at any given time (this includes SystemSaveData).
== OpenDataStorageWithProgramIndex ==
Takes an input u8, returns an [[#IStorage]].


== OpenSaveDataFileSystemBySystemSaveDataId ==
== OpenDeviceOperator ==
Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte [[#SaveDataAttribute]]. Web-applet only uses value0 for the input u8.
This command returns a session to a port implementing the [[#IDeviceOperator]] interface.


Returns an [[#IFileSystem]].
== OpenSdCardDetectionEventNotifier ==
This command returns a session to a port implementing the [[#IEventNotifier]] interface.


Mounts savedata in the SYSTEM [[Flash_Filesystem|NAND]] partition.
== OpenGameCardDetectionEventNotifier ==
This command returns a session to a port implementing the [[#IEventNotifier]] interface.


== OpenReadOnlySaveDataFileSystem ==
== SimulateDeviceDetectionEvent ==
Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte [[#SaveDataAttribute]], and returns an [[#IFileSystem]].
Takes a total of 0xC-bytes of input, no output.


Mounts SaveData as ReadOnly.
== VerifySaveDataFileSystem ==
Takes an unknown input u64 and a type-0x6 output buffer.


== ReadSaveDataFileSystemExtraDataBySaveDataSpaceId ==
The input u64 high-byte must be non-zero, otherwise an [[Error_codes|error]] is returned(0xE02).
Takes an input u8 [[#SaveDataSpaceId]], an input u64 saveID, and a type-0x6 output buffer containing the [[#SaveDataFileSystemExtraData]].


== ReadSaveDataFileSystemExtraData ==
== GetSaveDataCommitId ==
Takes an input u64 saveID and a type-0x6 output buffer containing the [[#SaveDataFileSystemExtraData]].
Takes an input u8 and u64, returns an output u64.


== OpenSaveDataInfoReader ==
== SetSdCardEncryptionSeed ==
No input, returns an output [[#ISaveDataInfoReader]].
Takes in the 0x10 byte SD card encryption seed, and loads it into FS-module state.


== OpenSaveDataInfoReaderBySaveDataSpaceId ==
[[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.
Takes an input u8 [[#SaveDataSpaceId]], returns an output [[#ISaveDataInfoReader]].


== FindSaveDataWithFilter ==
== OpenAccessFailureDetectionEventNotifier ==
Takes a total of 0x50-bytes of input, returns 8-bytes of output and a type-0x6 output buffer.
Takes 8-bytes of input and returns an [[#IEventNotifier]].


== OpenSaveDataInfoReaderWithFilter ==
[8.0.0+] Now takes an additional 8-bytes of input.
Takes a total of 0x50-bytes of input, returns an [[#ISaveDataInfoReader]].


== OpenSaveDataTransferManager ==
== SetSaveDataSize ==
No input, returns an [[#ISaveDataTransferManager]].
Takes two input u64s "size" and "journal_size", and writes them to fsp-srv object member variables.


== OpenSaveDataTransferManagerVersion2 ==
These variables are normally initialized with 32 MiB (0x2000000) and 16 MiB (0x1000000), respectively.
No input, returns an [[#ISaveDataTransferManagerWithDivision]].


== OpenSaveDataTransferProhibiter ==
These variables don't seem to be actually used anywhere else (?)
Takes an input u64, returns an [[#ISaveDataTransferProhibiter]].


== ListAccessibleSaveDataOwnerId ==
== SetSaveDataRootPath ==
Takes a total of 0x10-bytes of input, returns 4-bytes of output and a type-0x6 output buffer.
Takes an input path, and does snprintf(<fsp-srv object>->m_save_data_root_path, FS_MAX_PATH-1, "/%s", input_path);


== OpenSaveDataTransferManagerForSaveDataRepair ==
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.
No input, returns an output [[#ISaveDataTransferManagerForSaveDataRepair]].


== OpenSaveDataMover ==
== SetGlobalAccessLogMode ==
Takes 2 input [[#SaveDataSpaceId]], an input u64 size and a TransferMemory handle. Returns an output [[#ISaveDataMover]].
Takes an input u32.


== OpenSaveDataTransferManagerForRepair ==
== SetGlobalAccessLogMode ==
No input, returns an output [[#ISaveDataTransferManagerForRepair]].
Takes an input u32.


== OpenContentStorageFileSystem ==
== GetGlobalAccessLogMode ==
Takes a [[#ContentStorageId]]. Invalid values return 0x2EE202.
Returns an output u32.


Returns an [[#IFileSystem]] with NCA files. The read data from these files is identical to the data read by [[NCM_services#ReadContentIdFile]].
GlobalAccessLogMode is normally 0.


== OpenCloudBackupWorkStorageFileSystem ==
== OutputAccessLogToSdCard ==
Takes 4-bytes of input, returns an [[#IFileSystem]].
Takes a type-0x5 input buffer.


== OpenCustomStorageFileSystem ==
The input buffer is the string to output to the log. User-processes normally include a newline at the end.
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.
User-processes only use this when the value previously loaded from [[#GetGlobalAccessLogMode]] has bit1 set.


== OpenDataStorageByDataId ==
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.
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.
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).


== OpenDataFileSystemWithProgramIndex ==
== GetProgramIndexForAccessLog ==
Takes an input u8, returns an [[#IFileSystem]].
No input, returns two 32-bit values "version" and "program_index".


== OpenDataStorageWithProgramIndex ==
== OpenMultiCommitManager ==
Takes an input u8, returns an [[#IStorage]].
No input, returns an output [[#IMultiCommitManager]].


== OpenDeviceOperator ==
== OpenBisWiper ==
This command returns a session to a port implementing the [[#IDeviceOperator]] interface.
Takes an input u64 size and a TransferMemory handle. Returns an output [[#IWiper]].


== OpenSdCardDetectionEventNotifier ==
= IStorage =
This command returns a session to a port implementing the [[#IEventNotifier]] interface.
This is "nn::fssrv::sf::IStorage".


== OpenGameCardDetectionEventNotifier ==
This is the interface for a raw device, usually a block device.
This command returns a session to a port implementing the [[#IEventNotifier]] interface.


== SimulateDeviceDetectionEvent ==
{| class="wikitable" border="1"
Takes a total of 0xC-bytes of input, no output.
|-
! Cmd || Name
|-
| 0 || [[#Read]]
|-
| 1 || [[#Write]]
|-
| 2 || [[#Flush]]
|-
| 3 || [[#SetSize]]
|-
| 4 || [[#GetSize]]
|-
| 5 || [4.0.0+] OperateRange
|}


== VerifySaveDataFileSystem ==
== Read ==
Takes an unknown input u64 and a type-0x6 output buffer.
Takes a type-0x46 buffer, an offset and length.


The input u64 high-byte must be non-zero, otherwise an [[Error_codes|error]] is returned(0xE02).
== Write ==
Takes a type-0x45 buffer, an offset and length.


== GetSaveDataCommitId ==
== Flush ==
Takes an input u8 and u64, returns an output u64.
No input.


== SetSdCardEncryptionSeed ==
== SetSize ==
Takes in the 0x10 byte SD card encryption seed, and loads it into FS-module state.
Takes a size.


[[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.
== GetSize ==
Returns a size.


== OpenAccessFailureDetectionEventNotifier ==
= IFileSystem =
Takes 8-bytes of input and returns an [[#IEventNotifier]].
This is "nn::fssrv::sf::IFileSystem".


[8.0.0+] Now takes an additional 8-bytes of input.
There are two main implementations of this interface:


== SetSaveDataSize ==
* '''nn::fs::fsa::IFileSystem''': The main IFileSystem implementation. Filesystem classes implement this interface, and FS code usually operates on this interface.
Takes two input u64s "size" and "journal_size", and writes them to fsp-srv object member variables.
* '''nn::fssrv::sf::IFileSystem''': Used for sending an IFileSystem over IPC. Not used outside of IPC code.


These variables are normally initialized with 32 MiB (0x2000000) and 16 MiB (0x1000000), respectively.
There are two adapter classes to convert between these interfaces:


These variables don't seem to be actually used anywhere else (?)
* '''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.


== SetSaveDataRootPath ==
When the FS process returns a filesystem, it will wrap the filesystem object in a FileSystemInterfaceAdapter to return it over IPC.
Takes an input path, and does snprintf(<fsp-srv object>->m_save_data_root_path, FS_MAX_PATH-1, "/%s", input_path);
Then when FS application code receives that filesystem, it will wrap the nn::fssrv::sf::IFileSystem object in a FileSystemServiceObjectAdapter before using it.


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.
{| class="wikitable" border="1"
 
|-
== SetGlobalAccessLogMode ==
! Cmd || Name
Takes an input u32.
|-
| 0 || CreateFile
|-
| 1 || DeleteFile
|-
| 2 || CreateDirectory
|-
| 3 || DeleteDirectory
|-
| 4 || DeleteDirectoryRecursively
|-
| 5 || RenameFile
|-
| 6 || RenameDirectory
|-
| 7 || [[#GetEntryType]]
|-
| 8 || [[#OpenFile]]
|-
| 9 || [[#OpenDirectory]]
|-
| 10 || [[#Commit]]
|-
| 11 || [[#GetFreeSpaceSize]]
|-
| 12 || [[#GetTotalSpaceSize]]
|-
| 13 || [3.0.0+] [[#CleanDirectoryRecursively]]
|-
| 14 || [3.0.0+] [[#GetFileTimeStampRaw]]
|-
| 15 || [4.0.0+] QueryEntry
|-
| 16 || [15.0.0+] GetFileSystemAttribute
|}


== SetGlobalAccessLogMode ==
== GetEntryType ==
Takes an input u32.
Takes a type-0x9 input buffer for the path and returns [[#DirectoryEntryType]] as an output u32.


== GetGlobalAccessLogMode ==
== OpenFile ==
Returns an output u32.
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:


GlobalAccessLogMode is normally 0.
* 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)


== OutputAccessLogToSdCard ==
== OpenDirectory ==
Takes a type-0x5 input buffer.
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.


The input buffer is the string to output to the log. User-processes normally include a newline at the end.
== Commit ==
Like [https://3dbrew.org/wiki/FS:ControlArchive 3DS], this has to be used after writing to savedata for the changes to take affect.


User-processes only use this when the value previously loaded from [[#GetGlobalAccessLogMode]] has bit1 set.
== 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.


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.
== 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).


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).
== CleanDirectoryRecursively ==
Takes a type-0x9 input buffer for the path and clears the contents of the directory specified in the path.


== GetProgramIndexForAccessLog ==
== GetFileTimeStampRaw ==
No input, returns two 32-bit values "version" and "program_index".
Takes a type-0x19 input buffer for the path and returns a 0x20-byte struct. This contains 3 u64s and an u8.


== OpenMultiCommitManager ==
= IDirectory =
No input, returns an output [[#IMultiCommitManager]].
This is "nn::fssrv::sf::IDirectory".


== OpenBisWiper ==
{| class="wikitable" border="1"
Takes an input u64 size and a TransferMemory handle. Returns an output [[#IWiper]].
|-
! Cmd || Name
|-
| 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 "..".


= IStorage =
== GetEntryCount ==
This is "nn::fssrv::sf::IStorage".
Returns an u64 for the total number of readable entries.


This is the interface for a raw device, usually a block device.
= DirectoryEntry =
This is "nn::fs::DirectoryEntry".


{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
! Offset || Size || Description
|-
|-
| 0 || [[#Read]]
| 0x0 || 0x301 || Path
|-
|-
| 1 || [[#Write]]
| 0x301 || 0x1 || File attributes (bit 0 = is directory; bit 1 = archive bit)
|-
|-
| 2 || [[#Flush]]
| 0x302 || 0x2 || Padding?
|-
|-
| 3 || [[#SetSize]]
| 0x304 || 0x1 || [[#DirectoryEntryType]]
|-
|-
| 4 || [[#GetSize]]
| 0x305 || 0x3 || Padding?
|-
|-
| 5 || [4.0.0+] OperateRange
| 0x308 || 0x8 || Filesize, 0 for directories.
|}
|}


== Read ==
= DirectoryEntryType =
Takes a type-0x46 buffer, an offset and length.
This is "nn::fs::DirectoryEntryType".


== Write ==
An s8 value indicating a directory entry type. The current values are:
Takes a type-0x45 buffer, an offset and length.
 
== Flush ==
No input.
 
== SetSize ==
Takes a size.
 
== GetSize ==
Returns a size.
 
= IFileSystem =
This is "nn::fssrv::sf::IFileSystem".
 
There are two main implementations of this interface:
 
* '''nn::fs::fsa::IFileSystem''': The main IFileSystem implementation. Filesystem classes implement this interface, and FS code usually operates on this interface.
* '''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"
|-
|-
! Cmd || Name
! Value || Description
|-
|-
| 0 || CreateFile
| 0 || Directory
|-
|-
| 1 || DeleteFile
| 1 || File
|}
 
= IFile =
This is "nn::fssrv::sf::IFile".
 
{| class="wikitable" border="1"
|-
|-
| 2 || CreateDirectory
! Cmd || Name
|-
|-
| 3 || DeleteDirectory
| 0 || Read
|-
|-
| 4 || DeleteDirectoryRecursively
| 1 || Write
|-
|-
| 5 || RenameFile
| 2 || Flush
|-
|-
| 6 || RenameDirectory
| 3 || SetSize
|-
|-
| 7 || [[#GetEntryType]]
| 4 || GetSize
|-
|-
| 8 || [[#OpenFile]]
| 5 || [4.0.0+] OperateRange
|-
|-
| 9 || [[#OpenDirectory]]
| 6 || [12.0.0+] OperateRangeWithBuffer
|}
 
= ISaveDataInfoReader =
This is "nn::fssrv::sf::ISaveDataInfoReader".
 
{| class="wikitable" border="1"
|-
|-
| 10 || [[#Commit]]
! Cmd || Name
|-
|-
| 11 || [[#GetFreeSpaceSize]]
| 0 || [[#ReadSaveDataInfo]]
|-
|}
| 12 || [[#GetTotalSpaceSize]]
 
|-
== ReadSaveDataInfo ==
| 13 || [3.0.0+] [[#CleanDirectoryRecursively]]
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 =
This is "nn::fssrv::sf::IDeviceOperator".
 
{| class="wikitable" border="1"
|-
|-
| 14 || [3.0.0+] [[#GetFileTimeStampRaw]]
! Cmd || Name
|-
| 0 || [[#IsSdCardInserted]]
|-
| 1 || [[#GetSdCardSpeedMode]]
|-
| 2 || [2.0.0+] [[#GetSdCardCid]]
|-
| 3 || [2.0.0+] [[#GetSdCardUserAreaSize]]
|-
|-
| 15 || [4.0.0+] QueryEntry
| 4 || [2.0.0+] [[#GetSdCardProtectedAreaSize]]
|-
|-
| 16 || [15.0.0+] GetFileSystemAttribute
| 5 || [2.0.0+] [[#GetAndClearSdCardErrorInfo]]
|}
|-
 
| 6 || [17.0.0+] [[#GetSdCardHostControllerStatus]]
== GetEntryType ==
|-
Takes a type-0x9 input buffer for the path and returns [[#DirectoryEntryType]] as an output u32.
| 7 || [20.0.0+] SetSdCardActivationMode
 
|-
== OpenFile ==
| 8 || [20.0.0+] [S1] TryGetSdCardInfo
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:
|-
 
| 100 || [[#GetMmcCid]]
* 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 =
This is "nn::fssrv::sf::IDirectory".
 
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
| 101 || [[#GetMmcSpeedMode]]
|-
|-
| 0 || [[#Read]]
| 110 || [[#EraseMmc]]
|-
|-
| 1 || [[#GetEntryCount]]
| 111 || [[#GetMmcPartitionSize]]
|}
|-
 
| 112 || [2.0.0+] [[#GetMmcPatrolCount]]
== 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.
| 113 || [2.0.0+] [[#GetAndClearMmcErrorInfo]]
 
|-
The output buffer contains the read array of [[#DirectoryEntry]]. This doesn't include entries for "." and "..".
| 114 || [2.0.0+] [[#GetMmcExtendedCsd]]
 
== GetEntryCount ==
Returns an u64 for the total number of readable entries.
 
= DirectoryEntry =
This is "nn::fs::DirectoryEntry".
 
{| class="wikitable" border="1"
|-
|-
! Offset || Size || Description
| 115 || [4.0.0+] [[#SuspendMmcPatrol]]
|-
|-
| 0x0 || 0x301 || Path
| 116 || [4.0.0+] [[#ResumeMmcPatrol]]
|-
|-
| 0x301 || 0x1 || File attributes (bit 0 = is directory; bit 1 = archive bit)
| 117 || [17.0.0+] [[#EraseMmcWithRange]]
|-
|-
| 0x302 || 0x2 || Padding?
| 118 || [20.0.0+] MarkBeforeEraseMmcPartitionUserData
|-
|-
| 0x304 || 0x1 || [[#DirectoryEntryType]]
| 119 || [20.0.0+] CheckAfterEraseMmcPartitionUserData
|-
|-
| 0x305 || 0x3 || Padding?
| 200 || [S1] [[#IsGameCardInserted]]
|-
|-
| 0x308 || 0x8 || Filesize, 0 for directories.
| 201 || [S1] [[#EraseGameCard]]
|}
 
= DirectoryEntryType =
This is "nn::fs::DirectoryEntryType".
 
An s8 value indicating a directory entry type. The current values are:
 
{| class="wikitable" border="1"
|-
|-
! Value || Description
| 202 || [S1] [[#GetGameCardHandle]]
|-
|-
| 0 || Directory
| 203 || [S1] [[#GetGameCardUpdatePartitionInfo]]
|-
|-
| 1 || File
| 204 || [S1] [[#FinalizeGameCardDriver]]
|}
 
= IFile =
This is "nn::fssrv::sf::IFile".
 
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
| 205 || [S1] [[#GetGameCardAttribute]]
|-
|-
| 0 || Read
| 206 || [S1] [[#GetGameCardDeviceCertificate]]
|-
|-
| 1 || Write
| 207 || [S1] [[#GetGameCardAsicInfo]]
|-
|-
| 2 || Flush
| 208 || [S1] [[#GetGameCardIdSet]]
|-
|-
| 3 || SetSize
| 209 || [S1] [[#WriteToGameCardDirectly]]
|-
|-
| 4 || GetSize
| 210 || [S1] [[#SetVerifyWriteEnalbleFlag]]
|-
|-
| 5 || [4.0.0+] OperateRange
| 211 || [S1] [[#GetGameCardImageHash]]
|-
|-
| 6 || [12.0.0+] OperateRangeWithBuffer
| 212 || [S1] [2.0.0+] [[#GetGameCardDeviceIdForProdCard]]
|}
 
= ISaveDataInfoReader =
This is "nn::fssrv::sf::ISaveDataInfoReader".
 
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
| 213 || [S1] [2.0.0+] [[#EraseAndWriteParamDirectly]]
|-
|-
| 0 || [[#ReadSaveDataInfo]]
| 214 || [S1] [2.0.0+] [[#ReadParamDirectly]]
|}
 
== 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 =
This is "nn::fssrv::sf::IDeviceOperator".
 
{| class="wikitable" border="1"
|-
|-
! Cmd || Name
| 215 || [S1] [2.0.0+] [[#ForceEraseGameCard]]
|-
|-
| 0 || [[#IsSdCardInserted]]
| 216 || [S1] [2.0.0+] [[#GetGameCardErrorInfo]]
|-
|-
| 1 || [[#GetSdCardSpeedMode]]
| 217 || [S1] [2.1.0+] [[#GetGameCardErrorReportInfo]]
|-
|-
| 2 || [2.0.0+] [[#GetSdCardCid]]
| 218 || [S1] [3.0.0+] [[#GetGameCardDeviceId]]
|-
|-
| 3 || [2.0.0+] [[#GetSdCardUserAreaSize]]
| 219 || [S1] [8.0.0+] [[#ChallengeCardExistence]]
|-
|-
| 4 || [2.0.0+] [[#GetSdCardProtectedAreaSize]]
| 220 || [S1] [9.0.0+] [[#GetGameCardCompatibilityType]]
|-
|-
| 5 || [2.0.0+] [[#GetAndClearSdCardErrorInfo]]
| 221 || [S1] [17.0.0+] [[#GetGameCardAsicCertificate]]
|-
|-
| 6 || [17.0.0+] [[#GetSdCardHostControllerStatus]]
| 222 || [S1] [18.0.0+] [[#GetGameCardCardHeader]]
|-
|-
| 100 || [[#GetMmcCid]]
| 223 || [S1] [19.0.0+] [[#SetGameCardSessionCreationDelay]]
|-
|-
| 101 || [[#GetMmcSpeedMode]]
| 224 || [S1] [19.0.0+] [[#GetGameCardApplicationIdList]]
|-
|-
| 110 || [[#EraseMmc]]
| 225 || [S1] [20.0.0+] RegisterGameCardConfigurationData
|-
|-
| 111 || [[#GetMmcPartitionSize]]
| 226 || [S1] [20.0.0+] GetGameCardDetailedErrorReportInfo
|-
|-
| 112 || [2.0.0+] [[#GetMmcPatrolCount]]
| 300 || [[#SetSpeedEmulationMode]]
|-
|-
| 113 || [2.0.0+] [[#GetAndClearMmcErrorInfo]]
| 301 || [[#GetSpeedEmulationMode]]
|-
|-
| 114 || [2.0.0+] [[#GetMmcExtendedCsd]]
| 302 || [18.0.0+] [[#SetApplicationStorageSpeed]]
|-
|-
| 115 || [4.0.0+] [[#SuspendMmcPatrol]]
| 303 || [20.0.0+] SetGameCardClockRateForSpeedEmulation
|-
|-
| 116 || [4.0.0+] [[#ResumeMmcPatrol]]
| 304 || [20.0.0+] ClearGameCardClockRateForSpeedEmulation
|-
|-
| 117 || [17.0.0+] [[#EraseMmcWithRange]]
| 400 || [5.0.0+] [[#SuspendSdmmcControl]]
|-
|-
| 200 || [[#IsGameCardInserted]]
| 401 || [5.0.0+] [[#ResumeSdmmcControl]]
|-
|-
| 201 || [[#EraseGameCard]]
| 402 || [6.0.0+] [[#GetSdmmcConnectionStatus]]
|-
|-
| 202 || [[#GetGameCardHandle]]
| 500 || [6.0.0+] [[#SetDeviceSimulationEvent]]
|-
|-
| 203 || [[#GetGameCardUpdatePartitionInfo]]
| 501 || [6.0.0+] [[#ClearDeviceSimulationEvent]]
|-
|-
| 204 || [[#FinalizeGameCardDriver]]
| 800 || [S2] [[#OpenStorageDeviceManager]]
|-
|}
| 205 || [[#GetGameCardAttribute]]
 
|-
== IsSdCardInserted ==
| 206 || [[#GetGameCardDeviceCertificate]]
No input. Returns an output bool.
|-
 
| 207 || [[#GetGameCardAsicInfo]]
== GetSdCardSpeedMode ==
|-
No input. Returns an output [[#SdCardSpeedMode]].
| 208 || [[#GetGameCardIdSet]]
 
|-
| 209 || [[#WriteToGameCardDirectly]]
|-
| 210 || [[#SetVerifyWriteEnalbleFlag]]
|-
| 211 || [[#GetGameCardImageHash]]
|-
| 212 || [2.0.0+] [[#GetGameCardDeviceIdForProdCard]]
|-
| 213 || [2.0.0+] [[#EraseAndWriteParamDirectly]]
|-
| 214 || [2.0.0+] [[#ReadParamDirectly]]
|-
| 215 || [2.0.0+] [[#ForceEraseGameCard]]
|-
| 216 || [2.0.0+] [[#GetGameCardErrorInfo]]
|-
| 217 || [2.1.0+] [[#GetGameCardErrorReportInfo]]
|-
| 218 || [3.0.0+] [[#GetGameCardDeviceId]]
|-
| 219 || [8.0.0+] [[#ChallengeCardExistence]]
|-
| 220 || [9.0.0+] [[#GetGameCardCompatibilityType]]
|-
| 221 || [17.0.0+] [[#GetGameCardAsicCertificate]]
|-
| 222 || [18.0.0+] [[#GetGameCardCardHeader]]
|-
| 223 || [19.0.0+] [[#SetGameCardSessionCreationDelay]]
|-
| 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 ==
== GetSdCardCid ==
Takes a type-0x6 output buffer and an input s64 '''BufferSize'''. No output.
Takes a type-0x6 output buffer and an input s64 '''BufferSize'''. No output.
Line 1,447: Line 1,369:
== ClearDeviceSimulationEvent ==
== ClearDeviceSimulationEvent ==
Takes a total of 4-bytes of input. No output.
Takes a total of 4-bytes of input. No output.
== OpenStorageDeviceManager ==
Takes a byte. Returns an [[#IStorageDeviceManager]].


= IEventNotifier =
= IEventNotifier =
Line 1,665: Line 1,590:
|-
|-
| 16 || [[#SetKeySeedPackage]]
| 16 || [[#SetKeySeedPackage]]
|-
| 17 || [20.0.0+] SetLocalKeySeedPackage
|-
|-
| 32 || [[#OpenSaveDataExporter]]
| 32 || [[#OpenSaveDataExporter]]
Line 1,758: Line 1,685:
|-
|-
| 74 || [18.0.0+] [[#GetKeySeed]]
| 74 || [18.0.0+] [[#GetKeySeed]]
|-
| 75 || [20.0.0+] GetLocalKeySeedPackage
|-
|-
| 80 || [6.0.0+] [[#GetImportInitialDataAad]]
| 80 || [6.0.0+] [[#GetImportInitialDataAad]]
Line 1,966: Line 1,895:


= IStorageDeviceManager =
= IStorageDeviceManager =
This is "nn::fssrv::storage::sf::IStorageDeviceManager".
[S2] This is "nn::fssrv::storage::sf::IStorageDeviceManager".


{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 1,972: Line 1,901:
! Cmd || Name
! Cmd || Name
|-
|-
| N/A || IsInserted
| 0 || IsInserted
|-
| 1 || IsHandleValid
|-
|-
| N/A || IsHandleValid
| 2 || [[#OpenDetectionEvent]]
|-
|-
| N/A || OpenDetectionEvent
| 3 || Returns an [[#IEventNotifier]].
|-
|-
| N/A || OpenOperator
| 10 || [[#OpenOperator]]
|-
|-
| N/A || OpenDevice
| 20 || [[#OpenDevice]]
|-
|-
| N/A || OpenStorage
| 21 || [[#OpenStorage]]
|-
|-
| N/A || Invalidate
| 34 || Invalidate
|}
|}
== OpenDetectionEvent ==
Returns an [[#IEventNotifier]].
== OpenOperator ==
Returns an [[#IStorageDeviceOperator]].
== OpenDevice ==
Returns an [[#IStorageDevice]].
== OpenStorage ==
Returns an [[#IStorage]].


= IStorageDeviceOperator =
= IStorageDeviceOperator =
This is "nn::fssrv::storage::sf::IStorageDeviceOperator".
[S2] This is "nn::fssrv::storage::sf::IStorageDeviceOperator".


{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 1,994: Line 1,936:
! Cmd || Name
! Cmd || Name
|-
|-
| N/A || Operate
| 0 || Operate
|-
|-
| N/A || OperateIn
| 1 || OperateIn
|-
|-
| N/A || OperateOut
| 10 || OperateOut
|-
|-
| N/A || OperateOut2
| 11 || OperateOut2
|-
|-
| N/A || OperateInOut
| 20 || OperateInOut
|-
|-
| N/A || OperateIn2Out
| 21 || OperateIn2Out
|}
|}


= IStorageDevice =
= IStorageDevice =
This is "nn::fssrv::storage::sf::IStorageDevice".
[S2] This is "nn::fssrv::storage::sf::IStorageDevice".


{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 2,014: Line 1,956:
! Cmd || Name
! Cmd || Name
|-
|-
| N/A || GetHandle
| 0 || GetHandle
|-
|-
| N/A || IsHandleValid
| 1 || IsHandleValid
|-
|-
| N/A || OpenOperator
| 10 || OpenOperator
|-
|-
| N/A || Read
| 20 || Read
|-
|-
| N/A || Write
| 21 || Write
|-
|-
| N/A || Flush
| 22 || Flush
|-
|-
| N/A || SetSize
| 23 || SetSize
|-
|-
| N/A || GetSize
| 24 || GetSize
|-
|-
| N/A || OperateRange
| 25 || OperateRange
|}
|}


= FileSystemProxyType =
= FileSystemProxyType =
This is "nn::fs::FileSystemProxyType".
This is "nn::fs::FileSystemProxyType".
sdknso converts the input [[#ContentType|ContentType]] to a FileSystemProxyType, for use with the cmd input.


{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 2,085: Line 2,029:
|-
|-
| 0 || None
| 0 || None
|-
| 1 || [S2]
|-
|-
| 15 || All
| 15 || All
Line 3,223: Line 3,169:
|-
|-
| 0xA
| 0xA
| 0x6
| 0x6
| Padding?
| Padding?
|-
|-
| 0x10
| 0x10
| 0x10
| 0x10
| UserId
| 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]].
 
= FsAccessControlRestrictionMode =
This is "nn::fs::FsAccessControlRestrictionMode".
 
{| class="wikitable" border="1"
|-
! Value || Name
|-
|-
| 0x20
| 0 ||  
| 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]]
[[Category:Services]]
Retrieved from "https://switchbrew.org/wiki/Filesystem_services"