#define__MS_IO#include"ms_kern.h"#include"ms_io_core.h"#include"fs/ms_littlefs.h"/* configuration of the filesystem is provided by this struct */staticconststructlfs_configxxx_cfg= {// block device operations    .read=user_provided_block_device_read,    .prog=user_provided_block_device_prog,    .erase=user_provided_block_device_erase,    .sync=user_provided_block_device_sync,// block device configuration    .read_size=16,    .prog_size=16,    .block_size=4096,    .block_count=128,    .cache_size=16,    .lookahead_size=16,    .block_cycles=500,};staticms_io_device_txxx_dev;staticms_io_mnt_txxx_mnt;ms_io_device_register(&xxx_dev,"/dev/xxx_blk","xxx_drv",&xxx_cfg);ms_littlefs_register();ms_io_mount(&xxx_mnt,"/xxx_dir","/dev/xxx_blk",MS_LITTLEFS_NAME,MS_NULL);bsplinkliblittlefs.a,LOCAL_DEPEND_LIBadd-llittlefs:LOCAL_DEPEND_LIB      :=-llittlefs