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[DevFS] fix the device none-open issue

This commit is contained in:
Bernard Xiong 2015-01-28 14:13:44 +08:00
parent 3da0f4ec09
commit 01c3460cdb
1 changed files with 11 additions and 3 deletions
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14
components/dfs/filesystems/devfs/devfs.c
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@ -131,6 +131,7 @@ int dfs_device_fs_close(struct dfs_fd *file)
int dfs_device_fs_open(struct dfs_fd *file)
{
rt_err_t result;
rt_device_t device;
if (file->flags & DFS_O_CREAT)
@ -186,9 +187,16 @@ int dfs_device_fs_open(struct dfs_fd *file)
if (device == RT_NULL)
return -DFS_STATUS_ENODEV;
file->data = device;
return DFS_STATUS_OK;
/* to open device */
result = rt_device_open(device, RT_DEVICE_OFLAG_RDWR);
if (result == RT_EOK || result == -RT_ENOSYS)
{
file->data = device;
return DFS_STATUS_OK;
}
/* open device failed. */
return -DFS_STATUS_EIO;
}
int dfs_device_fs_stat(struct dfs_filesystem *fs, const char *path, struct stat *st)