components: fix serial v2 rx indicate setup

Old-Ding · Rbb666 · commit ece7b4fe9fee · 2026-07-03T09:32:48.000+08:00
diff --git a/components/drivers/serial/dev_serial_v2.c b/components/drivers/serial/dev_serial_v2.c
@@ -89,9 +89,6 @@ static int serial_fops_open(struct dfs_file *fd)
         break;
     }
 
-    if ((fd->flags & O_ACCMODE) != O_WRONLY)
-        rt_device_set_rx_indicate(device, serial_fops_rx_ind);
-
     flags |= RT_SERIAL_RX_BLOCKING | RT_SERIAL_TX_BLOCKING;
 
     /* preserve RT_DEVICE_FLAG_STREAM if it was set before close */
@@ -105,6 +102,9 @@ static int serial_fops_open(struct dfs_file *fd)
 
     if (ret == RT_EOK)
     {
+        if ((fd->flags & O_ACCMODE) != O_WRONLY)
+            rt_device_set_rx_indicate(device, serial_fops_rx_ind);
+
         serial = (struct rt_serial_device *)device;
         serial->is_posix_mode = RT_TRUE;
     }

Original file line number	Diff line number	Diff line change
`@@ -89,9 +89,6 @@ static int serial_fops_open(struct dfs_file *fd)`
`89`	`89`	`break;`
`90`	`90`	`}`
`91`	`91`
`92`		`- if ((fd->flags & O_ACCMODE) != O_WRONLY)`
`93`		`- rt_device_set_rx_indicate(device, serial_fops_rx_ind);`
`94`		`-`
`95`	`92`	`flags \|= RT_SERIAL_RX_BLOCKING \| RT_SERIAL_TX_BLOCKING;`
`96`	`93`
`97`	`94`	`/* preserve RT_DEVICE_FLAG_STREAM if it was set before close */`
`@@ -105,6 +102,9 @@ static int serial_fops_open(struct dfs_file *fd)`
`105`	`102`
`106`	`103`	`if (ret == RT_EOK)`
`107`	`104`	`{`
	`105`	`+ if ((fd->flags & O_ACCMODE) != O_WRONLY)`
	`106`	`+ rt_device_set_rx_indicate(device, serial_fops_rx_ind);`
	`107`	`+`
`108`	`108`	`serial = (struct rt_serial_device *)device;`
`109`	`109`	`serial->is_posix_mode = RT_TRUE;`
`110`	`110`	`}`