diff --git a/.gitmodules b/.gitmodules
index c89e1be25..bb955406c 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -13,3 +13,6 @@
 [submodule "Ubiquitous/Nuttx/nuttx"]
 	path = Ubiquitous/Nuttx/nuttx
 	url = https://code.gitlink.org.cn/wgzAIIT/incubator-nuttx.git
+[submodule "Ubiquitous/XiZi/fs/lwext4/lwext4_submodule"]
+	path = Ubiquitous/XiZi/fs/lwext4/lwext4_submodule
+	url = https://gitlink.org.cn/xuos/lwext4_filesystem_support_XiUOS.git
diff --git a/Ubiquitous/XiZi/board/ok1052-c/third_party_driver/sdio/connect_sdio.c b/Ubiquitous/XiZi/board/ok1052-c/third_party_driver/sdio/connect_sdio.c
index b29bc4fe6..0a84b7fff 100644
--- a/Ubiquitous/XiZi/board/ok1052-c/third_party_driver/sdio/connect_sdio.c
+++ b/Ubiquitous/XiZi/board/ok1052-c/third_party_driver/sdio/connect_sdio.c
@@ -261,6 +261,19 @@ static uint32 SdioWrite(void *dev, struct BusBlockWriteParam *write_param)
     return write_param->size;
 }
 
+static int SdioControl(struct HardwareDev *dev, struct HalDevBlockParam *block_param)
+{
+    NULL_PARAM_CHECK(dev);
+
+    if (OPER_BLK_GETGEOME == block_param->cmd) {
+        block_param->dev_block.size_perbank = g_sd.blockSize;
+        block_param->dev_block.block_size = g_sd.blockSize;
+        block_param->dev_block.bank_num = g_sd.blockCount;
+    }
+
+    return EOK;
+}
+
 static struct SdioDevDone dev_done =
 {
     SdioOpen,
@@ -352,6 +365,7 @@ int Imxrt1052HwSdioInit(void)
     }
 
     sdio_dev.dev_done = &dev_done;
+    sdio_dev.haldev.dev_block_control = SdioControl;
     ret = SdioDeviceRegister(&sdio_dev, SDIO_DEVICE_NAME);
     if (ret != EOK) {
         KPrintf("Sdio device register error %d\n", ret);
diff --git a/Ubiquitous/XiZi/board/ok1052-c/third_party_driver/usb/nxp_usb_driver/host_msd_command.c b/Ubiquitous/XiZi/board/ok1052-c/third_party_driver/usb/nxp_usb_driver/host_msd_command.c
index 78cb4af70..7bab0d1bc 100644
--- a/Ubiquitous/XiZi/board/ok1052-c/third_party_driver/usb/nxp_usb_driver/host_msd_command.c
+++ b/Ubiquitous/XiZi/board/ok1052-c/third_party_driver/usb/nxp_usb_driver/host_msd_command.c
@@ -15,8 +15,8 @@
 */
 
 /*************************************************
-File name: usb_misc.h
-Description: modify usb_echo to KPrintf
+File name: host_msd_command.c
+Description: modify usb msd command test function
 Others: take SDK_2.6.1_MIMXRT1052xxxxB/boards/evkbimxrt1050/usb_examples/usb_host_msd_command for references
 History: 
 1. Date: 2022-02-10
diff --git a/Ubiquitous/XiZi/board/xidatong/third_party_driver/sdio/connect_sdio.c b/Ubiquitous/XiZi/board/xidatong/third_party_driver/sdio/connect_sdio.c
index 431e3fc98..d13ea9a80 100644
--- a/Ubiquitous/XiZi/board/xidatong/third_party_driver/sdio/connect_sdio.c
+++ b/Ubiquitous/XiZi/board/xidatong/third_party_driver/sdio/connect_sdio.c
@@ -261,6 +261,19 @@ static uint32 SdioWrite(void *dev, struct BusBlockWriteParam *write_param)
     return write_param->size;
 }
 
+static int SdioControl(struct HardwareDev *dev, struct HalDevBlockParam *block_param)
+{
+    NULL_PARAM_CHECK(dev);
+
+    if (OPER_BLK_GETGEOME == block_param->cmd) {
+        block_param->dev_block.size_perbank = g_sd.blockSize;
+        block_param->dev_block.block_size = g_sd.blockSize;
+        block_param->dev_block.bank_num = g_sd.blockCount;
+    }
+
+    return EOK;
+}
+
 static struct SdioDevDone dev_done = 
 {
     SdioOpen,
@@ -352,6 +365,7 @@ int Imxrt1052HwSdioInit(void)
     }
 
     sdio_dev.dev_done = &dev_done;
+    sdio_dev.haldev.dev_block_control = SdioControl;
     ret = SdioDeviceRegister(&sdio_dev, SDIO_DEVICE_NAME);
     if (ret != EOK) {
         KPrintf("Sdio device register error %d\n", ret);
diff --git a/Ubiquitous/XiZi/board/xidatong/third_party_driver/usb/nxp_usb_driver/host_msd_command.c b/Ubiquitous/XiZi/board/xidatong/third_party_driver/usb/nxp_usb_driver/host_msd_command.c
index 78cb4af70..7bab0d1bc 100644
--- a/Ubiquitous/XiZi/board/xidatong/third_party_driver/usb/nxp_usb_driver/host_msd_command.c
+++ b/Ubiquitous/XiZi/board/xidatong/third_party_driver/usb/nxp_usb_driver/host_msd_command.c
@@ -15,8 +15,8 @@
 */
 
 /*************************************************
-File name: usb_misc.h
-Description: modify usb_echo to KPrintf
+File name: host_msd_command.c
+Description: modify usb msd command test function
 Others: take SDK_2.6.1_MIMXRT1052xxxxB/boards/evkbimxrt1050/usb_examples/usb_host_msd_command for references
 History: 
 1. Date: 2022-02-10
diff --git a/Ubiquitous/XiZi/fs/lwext4/Kconfig b/Ubiquitous/XiZi/fs/lwext4/Kconfig
index e69de29bb..afa4938f1 100644
--- a/Ubiquitous/XiZi/fs/lwext4/Kconfig
+++ b/Ubiquitous/XiZi/fs/lwext4/Kconfig
@@ -0,0 +1,7 @@
+config CONFIG_USE_DEFAULT_CFG
+    int
+    default 1
+
+config CONFIG_HAVE_OWN_OFLAGS
+    int
+    default 0
diff --git a/Ubiquitous/XiZi/fs/lwext4/Makefile b/Ubiquitous/XiZi/fs/lwext4/Makefile
index 15357b7bc..6c25f1470 100644
--- a/Ubiquitous/XiZi/fs/lwext4/Makefile
+++ b/Ubiquitous/XiZi/fs/lwext4/Makefile
@@ -1,4 +1,3 @@
+SRC_DIR := lwext4_submodule
 
-
-
-include $(KERNEL_ROOT)/compiler.mk
\ No newline at end of file
+include $(KERNEL_ROOT)/compiler.mk
diff --git a/Ubiquitous/XiZi/fs/lwext4/lwext4_submodule b/Ubiquitous/XiZi/fs/lwext4/lwext4_submodule
new file mode 160000
index 000000000..1eba3cfed
--- /dev/null
+++ b/Ubiquitous/XiZi/fs/lwext4/lwext4_submodule
@@ -0,0 +1 @@
+Subproject commit 1eba3cfeda305e5c735827805e90f5f1c8043394
diff --git a/Ubiquitous/XiZi/fs/shared/include/iot-vfs.h b/Ubiquitous/XiZi/fs/shared/include/iot-vfs.h
index bc61255da..d1531e5c2 100644
--- a/Ubiquitous/XiZi/fs/shared/include/iot-vfs.h
+++ b/Ubiquitous/XiZi/fs/shared/include/iot-vfs.h
@@ -24,6 +24,9 @@ enum FilesystemType
     FSTYPE_FATFS = 0,
     FSTYPE_IOTDEVICEFILE,
     FSTYPE_CH376,
+#ifdef FS_LWEXT4
+    FSTYPE_LWEXT4,
+#endif
     FSTYPE_END,
 };
 
diff --git a/Ubiquitous/XiZi/path_kernel.mk b/Ubiquitous/XiZi/path_kernel.mk
index 3b6f53047..d755f0f3b 100755
--- a/Ubiquitous/XiZi/path_kernel.mk
+++ b/Ubiquitous/XiZi/path_kernel.mk
@@ -354,6 +354,12 @@ ifeq ($(CONFIG_LIB_NEWLIB),y)
 KERNELPATHS += -I$(KERNEL_ROOT)/lib/newlib/include #
 endif
 
+ifeq ($(CONFIG_FS_LWEXT4),y)
+KERNELPATHS += -I$(KERNEL_ROOT)/fs/lwext4/lwext4_submodule/blockdev/xiuos #
+KERNELPATHS += -I$(KERNEL_ROOT)/fs/lwext4/lwext4_submodule/include #
+KERNELPATHS += -I$(KERNEL_ROOT)/fs/lwext4/lwext4_submodule/include/misc 
+endif
+
 
 ifeq ($(ARCH), risc-v)
 KERNELPATHS +=-I$(KERNEL_ROOT)/arch/risc-v/shared