Volume Support
[PHAT File System]

Collaboration diagram for Volume Support:

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Detailed Description

Dealing with volumes.

Data Structures
struct	_PHATVBR
	Volume boot record. More...
struct	_PHATSECTBUF
	Sector buffer structure. More...
struct	_PHATVOL
	Volume info structure. More...
Typedefs
typedef _PHATVBR	PHATVBR
	Volume boot record.
typedef _PHATSECTBUF	PHATSECTBUF
	Sector buffer structure.
typedef _PHATVOL	PHATVOL
	Volume info structure.
Functions
int	PhatVolMount (NUTDEVICE *dev, NUTFILE *blkmnt, u_char part_type)
	Mount a PHAT volume.
int	PhatVolUnmount (NUTDEVICE *dev)
	Unmount a PHAT volume.
u_long	PhatClusterSector (NUTFILE *nfp, u_long clust)

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Function Documentation

int PhatVolMount (  NUTDEVICE *  dev, NUTFILE *  blkmnt, u_char  part_type )

Mount a PHAT volume. This routine is called by the block device driver while mounting a partition. It reads and verifies the volume boot record, which is located in the first sector of a volume. The routine may also initializes any caching mechanism. Thus, it must be called before any other read or write access. Parameters: dev  Specifies the file system device. blkmnt  Handle of the block device's partition mount. part_type  Partition type: PTYPE_FAT32 PTYPE_FAT32_LBA PTYPE_FAT16 PTYPE_FAT16_BIG PTYPE_FAT16_LBA PTYPE_FAT12 Returns: 0 on success or -1 in case of an error.

int PhatVolUnmount (  NUTDEVICE *  dev  )

Unmount a PHAT volume. This routine is called by the block device driver while unmounting a partition. Parameters: dev  Specifies the file system device. Returns: 0 on success or -1 in case of an error.

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