This inheritance list is sorted roughly, but not completely, alphabetically:

[detail level 123]

Cfatfs::DIR
Cfatfs::FatFs	API for FatFS See http://elm-chan.org/fsw/ff/00index_e.html
Cfatfs::FATFS
Cfatfs::FFOBJID
Cfatfs::FIL
Cfatfs::FILINFO
▼Cfatfs::IO	FatFS interface definition
▼Cfatfs::BaseIO	Empty IO implementation that we can use to test the compilation
Cfatfs::SDArduinoSPIIO	Accessing a SD card via the Arduino SPI API
Cfatfs::SDBitBangSPIIO	Accessing a SD card via SPI using bit banging
Cfatfs::SDSPISTM32IO	SPI interface for STM32 microcontrollers
Cfatfs::SDSTM32DiskIO	Depending on the usecase, the SD card initialization could be done at the application level, if it is the case define the flag below to disable the BSP_SD_Init() call in the SD_Initialize()
Cfatfs::MultiIO	File system driver which supports multiple drives: Add the drivers by calling add() then call mount() to mount the drives
Cfatfs::RamIO	The data is stored in RAM. In a ESP32 when PSRAM has been activated we store it is PSRAM
Cfatfs::StreamIO< T >	Template class which expects a Stream class which provides the following additional methods
Cfatfs::MKFS_PARM
Cfatfs::putbuff
Cfatfs::SDClass	SDClass: starting driver, access to files
▼CStream
Cfatfs::File	File implementation for fatfs