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partitionTable Struct Reference

MBR partition table entry. More...

#include <FatStructs.h>

Data Fields

uint8_t boot
uint8_t beginHead
unsigned beginSector: 6
unsigned beginCylinderHigh: 2
uint8_t beginCylinderLow
uint8_t type
uint8_t endHead
unsigned endSector: 6
unsigned endCylinderHigh: 2
uint8_t endCylinderLow
uint32_t firstSector
uint32_t totalSectors

Detailed Description

MBR partition table entry.

A partition table entry for a MBR formatted storage device. The MBR partition table has four entries.


Field Documentation

High bits cylinder for first block in partition.

Combine beginCylinderLow with beginCylinderHigh. Legal values are 0-1023. Only used in old PC BIOS.

uint8_t beginHead

Head part of Cylinder-head-sector address of the first block in the partition. Legal values are 0-255. Only used in old PC BIOS.

unsigned beginSector

Sector part of Cylinder-head-sector address of the first block in the partition. Legal values are 1-63. Only used in old PC BIOS.

uint8_t boot

Boot Indicator . Indicates whether the volume is the active partition. Legal values include: 0X00. Do not use for booting. 0X80 Active partition.

unsigned endCylinderHigh

High bits of end cylinder

uint8_t endCylinderLow

Combine endCylinderLow with endCylinderHigh. Legal values are 0-1023. Only used in old PC BIOS.

uint8_t endHead

head part of cylinder-head-sector address of the last sector in the partition. Legal values are 0-255. Only used in old PC BIOS.

unsigned endSector

Sector part of cylinder-head-sector address of the last sector in the partition. Legal values are 1-63. Only used in old PC BIOS.

uint32_t firstSector

Logical block address of the first block in the partition.

uint32_t totalSectors

Length of the partition, in blocks.

uint8_t type

Partition type. See defines that begin with PART_TYPE_ for some Microsoft partition types.


The documentation for this struct was generated from the following files:
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