FileSystem_FAT::TVolFormatParam_FAT Class Reference
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class FileSystem_FAT::TVolFormatParam_FAT : public TVolFormatParam
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This class describes specific parameters for formatting volume with FAT file system. The parameters are: FAT sub type (FAT12/16/32), Number of Sectors per cluster, Number of FAT tables, Number of reserved sectors. All parameters are optional and if not set, it is up to the file system implementation to decide values.
This class package (TVolFormatParam_FATBuf) shall be passed to the
RFormat::Open()
as "Special format information"
Please note that the parameters may have invalid combinations and it is not always possible to format volume with the specified FAT sub type, like FAT12. In this case
RFormat::Open()
will return corresponding error code (the concrete code depends on file system implementation).
RFormat::Open()
does not modify any data in this structure.
TVolFormatParam_FATBuf
RFormat::Open()
Inherits from
-
FileSystem_FAT::TVolFormatParam_FAT
Constructor & Destructor Documentation
TVolFormatParam_FAT()
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TVolFormatParam_FAT
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(
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)
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[inline]
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Member Functions Documentation
FatSubType()
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TFatSubType
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FatSubType
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(
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)
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const [inline]
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Init()
initialises the data structure with default values for all parameters and automatically sets file system name as "FAT"
ReservedSectors()
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TUint32
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ReservedSectors
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(
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)
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const [inline]
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SectPerCluster()
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TUint32
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SectPerCluster
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(
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)
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const [inline]
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SetFatSubType(TFatSubType)
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void
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SetFatSubType
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(
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TFatSubType
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aSubType
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)
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[inline]
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Parameters
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TFatSubType
aSubType
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specifies FAT12/16/32 subtype. Value 0 means "the file system will decide itself what to use"
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SetFatSubType(const TDesC &)
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void
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SetFatSubType
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(
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const
TDesC
&
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aSubType
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)
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[inline]
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Parameters
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const
TDesC
& aSubType
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string descriptor, like "FAT16"
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SetFileSystemName(const TDesC &)
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void
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SetFileSystemName
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(
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const
TDesC
&
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aFsName
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)
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[private]
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sets the file system name hash corresponding to aFsName
SetNumFATs(TUint32)
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void
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SetNumFATs
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(
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TUint32
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aNumFATs
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)
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[inline]
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Set Number of FAT tables on the volume. The maximum is supported by the FAT FS implementation is 2
Parameters
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TUint32
aNumFATs
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Number of FAT tables. Value 0 means "the file system will decide itself what to use"
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SetReservedSectors(TUint32)
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void
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SetReservedSectors
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(
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TUint32
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aReservedSectors
|
)
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[inline]
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Set number of reserved sectors on FAT volume. The file system will validate this parameter before formatting.
Parameters
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TUint32
aReservedSectors
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number of reserved sectors. Value 0 means "the file system will decide itself what to use"
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SetSectPerCluster(TUint32)
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void
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SetSectPerCluster
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(
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TUint32
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aSpc
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)
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[inline]
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Set Number of "Sectors per cluster". For valid values see FAT specs.
Parameters
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TUint32
aSpc
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Number of "Sectors per cluster". Value 0 means "the file system will decide itself what to use"
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Member Enumerations Documentation
Enum anonymous
Enumerators
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KOffsetSubType = 0
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KOffsetReservedSec
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KOffsetSpc
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KOffsetNumFATs
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All rights
reserved. Unless otherwise stated, these materials are provided under the terms of the Eclipse Public License
v1.0.