Merge commit '920608bf3671662f94b4939ffdaf6fde2b08edff'

2026-10-19 15:23:34 +08:00 · 2013-01-06 02:01:41 -08:00
parent 0a4ef92b75 920608bf36
commit 5cc76018ff
7 changed files with 106 additions and 3 deletions
@@ -660,8 +660,10 @@ static int uart_ioctl(FAR struct file *filep, int cmd, unsigned long arg)

  int ret = dev->ops->ioctl(filep, cmd, arg);

-  /* If the low-level handler didn't handle the call, see if we can handle it here */
-
+  /*
+   * The device ioctl() handler returns -ENOTTY when it doesn't know
+   * how to handle the command. Check if we can handle it here.
+   */
  if (ret == -ENOTTY)
    {
      switch (cmd)