add SYNC in function disk_ioctl

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2322 bbd45198-f89e-11dd-88c7-29a3b14d5316
2012-10-07 05:13:36 +00:00 · 2012-10-07 05:13:36 +00:00 · c77e211d1d
parent 4cb779d743
commit c77e211d1d
1 changed files with 4 additions and 0 deletions
--- a/components/dfs/filesystems/elmfat/dfs_elm.c
+++ b/components/dfs/filesystems/elmfat/dfs_elm.c
@ -781,6 +781,10 @@ DRESULT disk_ioctl(BYTE drv, BYTE ctrl, void *buff)

 		*(DWORD *)buff = geometry.block_size/geometry.bytes_per_sector;
 	}
+	else if (ctrl == CTRL_SYNC)
+	{
+		rt_device_control(device, RT_DEVICE_CTRL_BLK_SYNC, RT_NULL);
+	}

 	return RES_OK;
 }