Long filename entry, overlays a directory_entry_t. These entries repeat before a non-lfn entry, each holding up to 13 UCS-2 characters. Note that they are not stored in order, the 'order' attribute indicates which order they go in. More...

#include <fat32.h>

Collaboration diagram for lfn_t:

Data Fields
uint8_t	order
	Note the order is arbitrary. It may have the value 0, 3, 65, 48... No way to know! To work around this weirdness, we have an array of lfn_t[256] that holds all possible entries ordered by the order value, which we can then iterate once we encounter a non-lfn to build the name. More...

uint16_t	first [5]

uint8_t	attributes

uint8_t	entry_type

uint8_t	checksum

uint16_t	second [6]

uint16_t	reserved

uint16_t	third [2]

Detailed Description

Long filename entry, overlays a directory_entry_t. These entries repeat before a non-lfn entry, each holding up to 13 UCS-2 characters. Note that they are not stored in order, the 'order' attribute indicates which order they go in.

Field Documentation

◆ attributes

uint8_t lfn_t::attributes

◆ checksum

uint8_t lfn_t::checksum

◆ entry_type

uint8_t lfn_t::entry_type

◆ first

uint16_t lfn_t::first[5]

◆ order

uint8_t lfn_t::order

Note the order is arbitrary. It may have the value 0, 3, 65, 48... No way to know! To work around this weirdness, we have an array of lfn_t[256] that holds all possible entries ordered by the order value, which we can then iterate once we encounter a non-lfn to build the name.

◆ reserved

uint16_t lfn_t::reserved

◆ second

uint16_t lfn_t::second[6]

◆ third

uint16_t lfn_t::third[2]

Data Fields