The f_mkdir function creates a new directory.
FRESULT f_mkdir ( const TCHAR* path /* [IN] Directory name */ );
FR_OK, FR_DISK_ERR, FR_INT_ERR, FR_NOT_READY, FR_NO_PATH, FR_INVALID_NAME, FR_DENIED, FR_EXIST, FR_WRITE_PROTECTED, FR_INVALID_DRIVE, FR_NOT_ENABLED, FR_NO_FILESYSTEM, FR_TIMEOUT, FR_NOT_ENOUGH_CORE
This function creates a new directory. To remove a directory, use f_unlink function.
Available when FF_FS_READONLY == 0 and FF_FS_MINIMIZE == 0.
res = f_mkdir("sub1"); if (res) die(res); res = f_mkdir("sub1/sub2"); if (res) die(res); res = f_mkdir("sub1/sub2/sub3"); if (res) die(res);