SDManager Class Reference

Manages the SD card filesystem for logging and image storage. More...

#include <sd_manager.h>

Public Member Functions
bool	begin ()
	Mounts the SD card and initializes the MMC peripheral.
bool	save_frame (uint8_t *buf, size_t len, const char *path)
	Writes a camera frame buffer to a JPEG file on the SD card.
bool	append_log (const char *message)
	Appends a string of text to a log file.
uint64_t	get_used_space ()
	Calculates the total used space on the SD card in bytes.
bool	is_present ()
	Checks if the SD card is currently mounted and accessible.

Detailed Description

Manages the SD card filesystem for logging and image storage.

Member Function Documentation

append_log()

bool SDManager::append_log

(

const char *

message

)

Appends a string of text to a log file.

Parameters

message

The text to be appended.

Returns

true if written successfully.

begin()

bool SDManager::begin

(

)

Mounts the SD card and initializes the MMC peripheral.

Returns

true if successfully mounted, false otherwise.

get_used_space()

uint64_t SDManager::get_used_space

(

)

Calculates the total used space on the SD card in bytes.

Returns

Used space in bytes.

is_present()

bool SDManager::is_present

(

)

Checks if the SD card is currently mounted and accessible.

Returns

true if present and mounted.

save_frame()

bool SDManager::save_frame	(	uint8_t *	buf,
		size_t	len,
		const char *	path )

Writes a camera frame buffer to a JPEG file on the SD card.

Parameters

buf	Pointer to the image data buffer.
len	Size of the buffer in bytes.
path	The full destination path (e.g., "/img/photo.jpg").

Returns

true if the file was written successfully.

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

• lib/storage/include/sd_manager.h
• lib/storage/src/sd_manager.cpp