Filesystem services: Difference between revisions
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== CreateSaveDataFileSystem == | == CreateSaveDataFileSystem == | ||
Takes a 0x40-byte | Takes a 0x40-byte [[#SaveDataAttribute]], a 0x40-byte [[#SaveDataCreationInfo]], and a 0x10-byte input struct. | ||
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, +4 u8 = 1. | 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, +4 u8 = 1. | ||
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== CreateSaveDataFileSystemBySystemSaveDataId == | == CreateSaveDataFileSystemBySystemSaveDataId == | ||
Takes a 0x40-byte | Takes a 0x40-byte [[#SaveDataAttribute]] and a 0x40-byte [[#SaveDataCreationInfo]]. | ||
Creates savedata in the SYSTEM [[Flash_Filesystem|NAND]] partition. | Creates savedata in the SYSTEM [[Flash_Filesystem|NAND]] partition. | ||
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== OpenSaveDataFileSystem == | == OpenSaveDataFileSystem == | ||
Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte | 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]]. | Returns an [[#IFileSystem]]. | ||
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== OpenSaveDataFileSystemBySystemSaveDataId == | == OpenSaveDataFileSystemBySystemSaveDataId == | ||
Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte | Takes an input u8 [[#SaveDataSpaceId]] and a 0x40-byte [[#SaveDataAttribute]]. Web-applet only uses value0 for the input u8. | ||
Returns an [[#IFileSystem]]. | Returns an [[#IFileSystem]]. | ||
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= SaveDataType = | = SaveDataType = | ||
This is "nn::fs::SaveDataType". | |||
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= CloudBackupWorkStorageId = | = CloudBackupWorkStorageId = | ||
This is "nn::fs::CloudBackupWorkStorageId". | This is "nn::fs::CloudBackupWorkStorageId". | ||
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= | = SaveDataAttribute = | ||
This is "nn::fs::SaveDataAttribute". | This is "nn::fs::SaveDataAttribute". | ||
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For DeviceSaveData, this struct is all-zero except for the [[#SaveDataType]] field. | For DeviceSaveData, this struct is all-zero except for the [[#SaveDataType]] field. | ||
= | = SaveDataCreationInfo = | ||
This is "nn::fs::SaveDataCreationInfo". | |||
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= DeviceSaveData = | = DeviceSaveData = | ||
This is accessed using the same commands for SaveData with the same input u8, the only difference compared to SaveData is the | This is accessed using the same commands for SaveData with the same input u8, the only difference compared to SaveData is the [[#SaveDataAttribute]] field. | ||
= BcatSaveData = | = BcatSaveData = | ||
This is accessed using the same commands for SaveData with the same input u8. The | This is accessed using the same commands for SaveData with the same input u8. The [[#SaveDataAttribute]] is the same as DeviceSaveData, except that the titleID field is set to <input titleID>. See above regarding [[#SaveDataCreationInfo]]. | ||
The 0x10-byte struct passed to [[#CreateSaveDataFileSystem]] has the first 0x5-bytes set to all-zero. | The 0x10-byte struct passed to [[#CreateSaveDataFileSystem]] has the first 0x5-bytes set to all-zero. | ||