# SdFat: Class Members - Functions

### - i -

- ibufstream() : ibufstream
- ifstream() : ifstream
- ignore() : istream
- init() : ExFatPartition , FatCache , FatPartition , FsCache , ibufstream , obufstream
- initErrorHalt() : SdBase< Vol >
- initErrorPrint() : SdBase< Vol >
- invalidate() : FatCache , FsCache
- ios() : ios
- is_open() : fstream , ifstream , ofstream
- isBusy() : SdCardInterface , SdioCard , SdSpiCard
- isContiguous() : ExFatFile , FatFile
- isDir() : ExFatFile , FatFile , FsBaseFile
- isDirectory() : FsBaseFile , StreamFile< BaseFile, PosType >
- isDirty() : FatCache , FsCache
- isFile() : ExFatFile , FatFile
- isHidden() : ExFatFile , FatFile , FsBaseFile
- isLFN() : FatFile
- isOpen() : ExFatFile , FatFile , FsBaseFile
- isReadable() : ExFatFile , FatFile
- isReadOnly() : ExFatFile , FatFile
- isRoot() : ExFatFile , FatFile
- isRoot32() : FatFile
- isRootFixed() : FatFile
- isSubDir() : ExFatFile , FatFile , FsBaseFile
- isSystem() : FatFile
- isWritable() : ExFatFile , FatFile