Fat.h File Reference

FAT16/FAT32 files on the SD card: find a file by its 8.3 name and read its blocks. More...

#include <stdint.h>

Go to the source code of this file.

Classes
struct	fat::Run
	A run of consecutive card blocks holding part of a file (see runs()). More...
struct	fat::File
	A file or folder found in a directory: where it starts and how long it is. More...

Namespaces
namespace	fat
	The FAT16/FAT32 reader (CHSd).

Typedefs
typedef bool(*	fat::ListFn) (const char *name, const File &f, bool isDir, void *ctx)
	What list() calls for each entry of a directory.

Enumerations
enum	fat::Err : int8_t {   fat::OK = 0 ,   fat::E_READ = -1 ,   fat::E_NOFS = -10 ,   fat::E_EXFAT = -11 ,   fat::E_NOTFOUND = -12 ,   fat::E_FRAG = -13 ,   fat::E_CHAIN = -14 }
	What the functions that return an int8_t report: OK (0) or a negative error. More...

Functions
int8_t	fat::mount (uint8_t *buf)
	Finds the FAT volume on the card and remembers where its parts are.
int8_t	fat::find (const char *name, File &f, uint8_t *buf)
	Finds a file in the root directory.
int8_t	fat::folder (const char *name, File &dir, uint8_t *buf)
	Finds a folder in the root directory, for match() and list().
int8_t	fat::match (const File &dir, const char *pattern, uint8_t skip, File &f, char *nameOut, uint8_t *buf)
	Finds the (skip + 1)th file in a folder whose name fits a pattern.
int8_t	fat::root (File &dir)
	The root directory as a folder, for match() and list().
int8_t	fat::list (const File &dir, ListFn fn, void *ctx, uint8_t *buf)
	Walks a directory, handing every file and folder in it to fn, in directory order.
int8_t	fat::runs (const File &f, Run *out, uint8_t maxRuns, uint8_t *buf)
	Walks a file's cluster chain once and returns its extents: the runs of consecutive card blocks that hold it.
uint8_t	fat::open (const char *name, Run *out, uint8_t maxRuns, uint8_t *buf)
	The usual way in: sd::init(), mount(), find() and runs() in one go.
bool	fat::read (const Run *run, uint32_t nRuns, uint32_t k, uint8_t *dst)
	Reads block k of a file through its runs.

Detailed Description

FAT16/FAT32 files on the SD card: find a file by its 8.3 name and read its blocks.