構造体定義書 - fat

struct fat_bootsect

No.	名称	属性	説明
1	fat_bootsect
	bsJump[3]	le8_t	Jump to code
	bsOemName[8]	char	Formatting program
	bsBytesPerSec	le16_t	Bytes/sector
	bsSecPerClust	le8_t	Sectors/cluster
	bsResSectors	le16_t	Reserved sectors
	bsFATs	le8_t	Number of FATs
	bsRootDirEnts	le16_t	Number of entries/root directory
	bsSectors	le16_t	Number of sectors [1]
	bsMedia	le8_t	Magic media type byte
	bsFATsecs	le16_t	Sectors/FAT
	bsSecPerTrack	le16_t	Sectors/track
	bsHeads	le16_t	Number of heads
	bsHiddenSecs	le32_t	Number of hidden sectors
	bsHugeSectors	le32_t	Number of sectors [2]
	bsDriveNumber	le8_t	Drive number
	bsReserved1	le8_t	Reserved
	bsBootSignature	le8_t	0x29
	bsVolumeID	le32_t	Volume serial number
	bsVolumeLabel[11]	char	Volume name
	bsFileSysType[8]	char	File system type
	bsCode[448]	le8_t	Boot sector code
	fat16
	bpb_fatsz32	le32_t	Sectors/FAT
	bpb_extflags	le16_t	Extended flags
	bpb_fsver	le16_t	Filesystem version
	bpb_rootclus	le32_t	Root directory cluster
	bpb_fsinfo	le16_t	FSINFO sector number
	bpb_bkbootsec	le16_t	Backup boot sector (superblock)
	bpb_reserved[12]	char
	bsDriveNumber	le8_t	Drive number
	bsReserved1	le8_t	Reserved
	bsBootSignature	le8_t	0x29
	bsVolumeID	le32_t	Volume serial number
	bsVolumeLabel[11]	char	Volume name
	bsFileSysType[8]	char	File system type
	bsCode[420]	le8_t	Boot sector code
	fat32
	u
	bsSignature	le16_t	0xAA55

fat_bootsect