VFS_SDMMC Class Reference

ESP32 Virtual File System for SDMMC. The default mount point is "/sdcard" DRAFT implementation: not tested see https://github.com/espressif/esp-idf/blob/master/examples/storage/sd_card/sdmmc/README.md. More...

#include <VFS_SDMMC.h>

Inheritance diagram for VFS_SDMMC:

Public Types
enum class	BusWidth { Byte1 = 1 , Byte4 = 4 }
enum class	Speed { HS , UHS_SDR , UHS_DDR }

Public Member Functions
	VFS_SDMMC (const char *mountPoint="/sdmmc")
	VFS_SDMMC (int pinClk, int pinCmd, int pinD0, int pinD1, int pinD2=-1, int pinD3=-1, const char *mountPoint="/sdmmc")
bool	begin ()
	mount the file systems
void	end ()
	unmount the file system
bool	exists (const char *path)
bool	exists (const std::string &path)
bool	mkdir (const char *path)
bool	mkdir (const std::string &path)
const char *	mountPoint ()
	provides the actual mount point
VFSFile	open (const char *file, FileMode mode=VFS_FILE_READ)
VFSFile	open (const std::string &path, FileMode mode=VFS_FILE_READ)
bool	remove (const char *path)
bool	remove (const std::string &path)
bool	rename (const char *pathFrom, const char *pathTo)
bool	rename (const std::string &pathFrom, const std::string &pathTo)
bool	rmdir (const char *path)
bool	rmdir (const std::string &path)
void	setBusWidth (BusWidth bits)
void	setClk (int pin)
void	setCmd (int pin)
void	setD0 (int pin)
void	setD1 (int pin)
void	setD2 (int pin)
void	setD3 (int pin)
void	setMountPoint (const char *mp)
	provide the mount point (root directory for the file system)
void	setPins (int pinClk, int pinCmd, int pinD0, int pinD1, int pinD2=-1, int pinD3=-1)
void	setSpeed (Speed speed)

Protected Member Functions
const char *	expand (const char *file)
	expands the file name with the mount point

Protected Attributes
size_t	allocation_unit_size = 16 * 1024
BusWidth	bus_width = BusWidth::Byte4
sdmmc_card_t *	card = nullptr
sdmmc_host_t	host
int	max_files = 5
const char *	mount_point = "/"
gpio_num_t	pin_clk = (gpio_num_t) 14
gpio_num_t	pin_cmd = (gpio_num_t) 15
gpio_num_t	pin_d0 = (gpio_num_t) 2
gpio_num_t	pin_d1 = (gpio_num_t) 4
gpio_num_t	pin_d2 = (gpio_num_t) 12
gpio_num_t	pin_d3 = (gpio_num_t) 13
sd_pwr_ctrl_handle_t	pwr_ctrl_handle
Speed	speed = Speed::HS
Str	tmp

Detailed Description

ESP32 Virtual File System for SDMMC. The default mount point is "/sdcard" DRAFT implementation: not tested see https://github.com/espressif/esp-idf/blob/master/examples/storage/sd_card/sdmmc/README.md.

Author

Phil Schatzmann

Copyright

GPLv3

Member Function Documentation

begin()

bool begin ( )

inlinevirtual

mount the file systems

< SD High speed (limited by clock divider)

< MMC 100MHz speed

< MMC 50MHz speed

Reimplemented from VFS.

end()

void end ( )

inlinevirtual

unmount the file system

Reimplemented from VFS.

setMountPoint()

void setMountPoint ( const char *  mp )

inlinevirtual

provide the mount point (root directory for the file system)

Implements VFS.

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

• src/AudioTools/Disk/VFS_SDMMC.h