Classes | Typedefs | Variables
D:/DRISSI/arduino-0022/arduino-0022/libraries/SD/utility/FatStructs.h File Reference

FAT file structures. More...

Go to the source code of this file.

Classes

struct  partitionTable
 MBR partition table entry. More...
struct  masterBootRecord
 Master Boot Record. More...
struct  biosParmBlock
 BIOS parameter block. More...
struct  fat32BootSector
 Boot sector for a FAT16 or FAT32 volume. More...
struct  directoryEntry
 FAT short directory entry. More...

Typedefs

typedef struct partitionTable part_t
 Type name for partitionTable.
typedef struct masterBootRecord mbr_t
 Type name for masterBootRecord.
typedef struct biosParmBlock bpb_t
 Type name for biosParmBlock.
typedef struct fat32BootSector fbs_t
 Type name for fat32BootSector.
typedef struct directoryEntry dir_t
 Type name for directoryEntry.

Variables

uint8_t const BOOTSIG0 = 0X55
 Value for byte 510 of boot block or MBR.
uint8_t const BOOTSIG1 = 0XAA
 Value for byte 511 of boot block or MBR.
uint16_t const FAT16EOC = 0XFFFF
 FAT16 end of chain value used by Microsoft.
uint16_t const FAT16EOC_MIN = 0XFFF8
 Minimum value for FAT16 EOC.
uint32_t const FAT32EOC = 0X0FFFFFFF
 FAT32 end of chain value used by Microsoft.
uint32_t const FAT32EOC_MIN = 0X0FFFFFF8
 Minimum value for FAT32 EOC.
uint32_t const FAT32MASK = 0X0FFFFFFF
 Mask a for FAT32 entry.
uint8_t const DIR_NAME_0XE5 = 0X05
 escape for name[0] = 0XE5
uint8_t const DIR_NAME_DELETED = 0XE5
 name[0] value for entry that is free after being "deleted"
uint8_t const DIR_NAME_FREE = 0X00
 name[0] value for entry that is free and no allocated entries follow
uint8_t const DIR_ATT_READ_ONLY = 0X01
 file is read-only
uint8_t const DIR_ATT_HIDDEN = 0X02
 File should hidden in directory listings.
uint8_t const DIR_ATT_SYSTEM = 0X04
 Entry is for a system file.
uint8_t const DIR_ATT_VOLUME_ID = 0X08
 Directory entry contains the volume label.
uint8_t const DIR_ATT_DIRECTORY = 0X10
 Entry is for a directory.
uint8_t const DIR_ATT_ARCHIVE = 0X20
 Old DOS archive bit for backup support.
uint8_t const DIR_ATT_LONG_NAME = 0X0F
 Test value for long name entry.
uint8_t const DIR_ATT_LONG_NAME_MASK = 0X3F
 Test mask for long name entry.
uint8_t const DIR_ATT_DEFINED_BITS = 0X3F
 defined attribute bits
uint8_t const DIR_ATT_FILE_TYPE_MASK = (DIR_ATT_VOLUME_ID | DIR_ATT_DIRECTORY)
 Mask for file/subdirectory tests.

Detailed Description

FAT file structures.

Definition in file FatStructs.h.


Variable Documentation

uint8_t const DIR_ATT_LONG_NAME = 0X0F

Test value for long name entry.

Test is (d->attributes & DIR_ATT_LONG_NAME_MASK) == DIR_ATT_LONG_NAME.

Definition at line 395 of file FatStructs.h.

uint16_t const FAT16EOC = 0XFFFF

FAT16 end of chain value used by Microsoft.

Definition at line 278 of file FatStructs.h.

uint16_t const FAT16EOC_MIN = 0XFFF8

Minimum value for FAT16 EOC.

Use to test for EOC.

Definition at line 280 of file FatStructs.h.

uint32_t const FAT32EOC = 0X0FFFFFFF

FAT32 end of chain value used by Microsoft.

Definition at line 282 of file FatStructs.h.

uint32_t const FAT32EOC_MIN = 0X0FFFFFF8

Minimum value for FAT32 EOC.

Use to test for EOC.

Definition at line 284 of file FatStructs.h.

uint32_t const FAT32MASK = 0X0FFFFFFF

Mask a for FAT32 entry.

Entries are 28 bits.

Definition at line 286 of file FatStructs.h.