Access FAT16 and FAT32 volumes on raw file devices.
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#include <FatVolume.h>
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class | FatCache |
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class | FatFile |
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Access FAT16 and FAT32 volumes on raw file devices.
uint8_t FatVolume::blocksPerCluster |
( |
| ) |
const |
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inline |
- Returns
- The volume's cluster size in blocks.
uint32_t FatVolume::blocksPerFat |
( |
| ) |
const |
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inline |
- Returns
- The number of blocks in one FAT.
Clear the cache and returns a pointer to the cache. Not for normal apps.
- Returns
- A pointer to the cache buffer or zero if an error occurs.
uint32_t FatVolume::clusterCount |
( |
| ) |
const |
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inline |
- Returns
- The total number of clusters in the volume.
uint8_t FatVolume::clusterSizeShift |
( |
| ) |
const |
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inline |
- Returns
- The shift count required to multiply by blocksPerCluster.
uint32_t FatVolume::dataStartBlock |
( |
| ) |
const |
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inline |
- Returns
- The logical block number for the start of file data.
int8_t FatVolume::dbgFat |
( |
uint32_t |
n, |
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uint32_t * |
v |
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) |
| |
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inline |
Debug access to FAT table
- Parameters
-
[in] | n | cluster number. |
[out] | v | value of entry |
- Returns
- true for success or false for failure
uint8_t FatVolume::fatCount |
( |
| ) |
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|
inline |
- Returns
- The number of File Allocation Tables.
uint32_t FatVolume::fatStartBlock |
( |
| ) |
const |
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inline |
- Returns
- The logical block number for the start of the first FAT.
uint8_t FatVolume::fatType |
( |
| ) |
const |
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inline |
- Returns
- The FAT type of the volume. Values are 12, 16 or 32.
int32_t FatVolume::freeClusterCount |
( |
| ) |
|
Volume free space in clusters.
- Returns
- Count of free clusters for success or -1 if an error occurs.
Initialize a FAT volume. Try partition one first then try super floppy format.
- Returns
- The value true is returned for success and the value false is returned for failure.
bool FatVolume::init |
( |
uint8_t |
part | ) |
|
Initialize a FAT volume.
- Parameters
-
[in] | part | The partition to be used. Legal values for part are 1-4 to use the corresponding partition on a device formatted with a MBR, Master Boot Record, or zero if the device is formatted as a super floppy with the FAT boot sector in block zero. |
- Returns
- The value true is returned for success and the value false is returned for failure.
uint16_t FatVolume::rootDirEntryCount |
( |
| ) |
const |
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inline |
- Returns
- The number of entries in the root directory for FAT16 volumes.
uint32_t FatVolume::rootDirStart |
( |
| ) |
const |
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inline |
- Returns
- The logical block number for the start of the root directory on FAT16 volumes or the first cluster number on FAT32 volumes.
uint32_t FatVolume::volumeBlockCount |
( |
| ) |
const |
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inline |
- Returns
- The number of blocks in the volume
bool FatVolume::wipe |
( |
print_t * |
pr = 0 | ) |
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Wipe all data from the volume.
- Parameters
-
[in] | pr | print stream for status dots. |
- Returns
- true for success else false.
The documentation for this class was generated from the following files:
- Arduino/libraries/SdFat/src/FatLib/FatVolume.h
- Arduino/libraries/SdFat/src/FatLib/FatVolume.cpp