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SourceVuESP-IDF Framework and ExamplesFatFSf_read()

f_read() function

Syntax

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Summary

Declaration

Definition

FRESULT f_read (FIL* fp, void* buff, UINT btr, UINT* br);

Implemented in ff.c:3951

Arguments

Argument

fp

buff

btr

br

References

Code

Location

Referrer

FRESULT f_read (

FRESULT f_read (FIL* fp, void* buff, UINT btr, UINT* br); /* Read data from the file */

FRESULT res = f_read(file, dst, size, &read);

f_res = f_read(file, dst, size, &read);

vfs_fat_pread()

res = f_read(pf1, buf, will_copy, &read);

Call Tree

f_read() is called by 3 functions and calls 6 functions:

vfs_fat_pread()

f_read()

ff_disk_write()

unlock_volume()

Data Use

f_read() reads 17 variables and writes 5 variables:

FFOBJID::objsize

FRESULT::FR_DISK_ERR

FRESULT::FR_INT_ERR

FRESULT::FR_DENIED

FFOBJID::sclust

DRESULT::RES_OK

f_read()

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