diff --git a/VKernel/Kernel/drivers/fs/fat32/fat32_diskio.vp b/VKernel/Kernel/drivers/fs/fat32/fat32_diskio.vp
index ac101b4..232d782 100644
--- a/VKernel/Kernel/drivers/fs/fat32/fat32_diskio.vp
+++ b/VKernel/Kernel/drivers/fs/fat32/fat32_diskio.vp
@@ -63,17 +63,17 @@ def ioctl(pdrv: t.CUInt8T, cmd: t.CUInt8T, buff: t.CVoid | t.CPtr) -> types.DRES
 		case types.GET_SECTOR_COUNT:
 			disk_size: t.CUInt64T = ide.getDiskSize()
 			if disk_size == 0:
-				c.Set(t.CUInt32T(buff, t.CPtr), 131072)
+				c.Set(c.Deref(t.CUInt32T(buff, t.CPtr)), 131072)
 			elif disk_size > 0xFFFFFFFF:
-				c.Set(t.CUInt32T(buff, t.CPtr), 0xFFFFFFFF)
+				c.Set(c.Deref(t.CUInt32T(buff, t.CPtr)), 0xFFFFFFFF)
 			else:
-				c.Set(t.CUInt32T(buff, t.CPtr), t.CUInt32T(disk_size))
+				c.Set(c.Deref(t.CUInt32T(buff, t.CPtr)), t.CUInt32T(disk_size))
 			return types.DRESULT.RES_OK
 		case types.GET_SECTOR_SIZE:
-			c.Set(t.CUInt16T(buff, t.CPtr), 512)
+			c.Set(c.Deref(t.CUInt16T(buff, t.CPtr)), 512)
 			return types.DRESULT.RES_OK
 		case types.GET_BLOCK_SIZE:
-			c.Set(t.CUInt32T(buff, t.CPtr), 1)
+			c.Set(c.Deref(t.CUInt32T(buff, t.CPtr)), 1)
 			return types.DRESULT.RES_OK
 		case types.CTRL_SYNC:
 			return types.DRESULT.RES_OK
diff --git a/VKernel/Kernel/drivers/fs/fat32/fat32_types.vp b/VKernel/Kernel/drivers/fs/fat32/fat32_types.vp
index cb24a5b..7d16660 100644
--- a/VKernel/Kernel/drivers/fs/fat32/fat32_types.vp
+++ b/VKernel/Kernel/drivers/fs/fat32/fat32_types.vp
@@ -910,8 +910,8 @@ class volinfo:
 		_write32(c.Addr(self.win[0]), eo3 + 28, file_size)
 		self.win_dirty = 1
 		self.win_flush()
-		c.Set(t.CUInt64T(dir_sector_out, t.CPtr), es3)
-		c.Set(t.CUInt32T(dir_offset_out, t.CPtr), eo3)
+		c.Set(c.Deref(t.CUInt64T(dir_sector_out, t.CPtr)), es3)
+		c.Set(c.Deref(t.CUInt32T(dir_offset_out, t.CPtr)), eo3)
 		return FRESULT.FR_OK
 
 	def dir_update_entry(self, dir_sector: t.CUInt64T, dir_offset: t.CUInt32T, first_cluster: t.CUInt32T, file_size: t.CUInt32T, attr: t.CUInt8T) -> FRESULT:
@@ -1452,7 +1452,7 @@ class fileobj:
 	def read(self, buff: t.CVoid | t.CPtr, btr: t.CUInt32T, br: t.CUInt32T | t.CPtr) -> FRESULT:
 		if not self.is_open:                   return FRESULT.FR_INVALID_OBJECT
 		if not (self.flags & FA_READ):         return FRESULT.FR_DENIED
-		c.Set(t.CUInt32T(br, t.CPtr), 0)
+		c.Set(c.Deref(br), 0)
 		# [RD-DIAG] 定位 read_len<64（ehdr 读取失败）根因：打印文件状态
 		_rdb: t.CArray[t.CChar, 160]
 		viperlib.snprintf(c.Addr(_rdb), 160, "[fat32] read: size=%lu fc=%lu cc=%lu pos=%lu btr=%lu\n",
@@ -1497,7 +1497,7 @@ class fileobj:
 		_rdb2: t.CArray[t.CChar, 96]
 		viperlib.snprintf(c.Addr(_rdb2), 96, "[fat32] read done: br=%lu\n", total_read)
 		serial.puts(c.Addr(_rdb2))
-		c.Set(t.CUInt32T(br, t.CPtr), total_read)
+		c.Set(c.Deref(br), total_read)
 		return FRESULT.FR_OK
 
 	def _extend_to(self, target_pos: t.CUInt32T) -> FRESULT:
@@ -1524,7 +1524,7 @@ class fileobj:
 	def write(self, buff: t.CConst | t.CVoid | t.CPtr, btw: t.CUInt32T, bw: t.CUInt32T | t.CPtr) -> FRESULT:
 		if not self.is_open:                    return FRESULT.FR_INVALID_OBJECT
 		if not (self.flags & FA_WRITE):         return FRESULT.FR_DENIED
-		c.Set(t.CUInt32T(bw, t.CPtr), 0)
+		c.Set(c.Deref(bw), 0)
 		vol: volinfo | t.CPtr = self.vol
 		remaining:      t.CUInt32T = btw
 		buf_ptr:        t.CConst | t.CUInt8T | t.CPtr = t.CUInt8T(buff, t.CPtr)
@@ -1576,7 +1576,7 @@ class fileobj:
 			if self.file_pos % vol.cluster_size == 0:
 				next_c: t.CUInt32T = vol.cluster_get_next(self.current_cluster)
 				if next_c != 0: self.current_cluster = next_c
-		c.Set(t.CUInt32T(bw, t.CPtr), total_written)
+		c.Set(c.Deref(bw), total_written)
 		return FRESULT.FR_OK
 
 	def seek(self, offset: t.CUInt32T) -> FRESULT: