GeometryBlockHeader Struct Reference

Legacy CHS style logical geometry metadata (BlockType::GeometryBlock). More...

#include <aaruformat/structs/data.h>

Data Fields
uint32_t	identifier
	Block identifier, must be BlockType::GeometryBlock.
uint32_t	cylinders
	Number of cylinders.
uint32_t	heads
	Number of heads (tracks per cylinder).
uint32_t	sectorsPerTrack
	Number of sectors per track.

Detailed Description

Legacy CHS style logical geometry metadata (BlockType::GeometryBlock).

Total logical sectors implied by this header is cylinders * heads * sectorsPerTrack. Sector size is not included here and must be derived from context (e.g., accompanying metadata or defaulting to 512 for many block devices).

Definition at line 90 of file data.h.

Field Documentation

cylinders

uint32_t GeometryBlockHeader::cylinders

Number of cylinders.

Definition at line 93 of file data.h.

Referenced by aaruf_get_geometry(), aaruf_set_geometry(), and process_geometry_block().

heads

uint32_t GeometryBlockHeader::heads

Number of heads (tracks per cylinder).

Definition at line 94 of file data.h.

Referenced by aaruf_get_geometry(), aaruf_set_geometry(), and process_geometry_block().

identifier

uint32_t GeometryBlockHeader::identifier

Block identifier, must be BlockType::GeometryBlock.

Definition at line 92 of file data.h.

Referenced by aaruf_get_geometry(), aaruf_open(), aaruf_set_geometry(), process_geometry_block(), and write_geometry_block().

sectorsPerTrack

uint32_t GeometryBlockHeader::sectorsPerTrack

Number of sectors per track.

Definition at line 95 of file data.h.

Referenced by aaruf_get_geometry(), aaruf_set_geometry(), and process_geometry_block().

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

• include/aaruformat/structs/data.h