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-rw-r--r--doc/coreutils.texi12
1 files changed, 12 insertions, 0 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi
index 62955a508..85477a05a 100644
--- a/doc/coreutils.texi
+++ b/doc/coreutils.texi
@@ -13808,6 +13808,18 @@ Print all current settings in a form that can be used as an argument to
another @command{stty} command to restore the current settings. This option
may not be used in combination with any line settings.
+@item -I
+@itemx --immediate
+@opindex -I
+@opindex --immediate
+@cindex nonblocking @command{stty} setting
+Apply settings without first waiting for pending output to be transmitted.
+In some cases the system may be in a state where serial transmission
+is not possible.
+For example, if the system has received the @samp{DC3} character
+with @code{ixon} (software flow control) enabled, then @command{stty} would
+block without this option.
+
@end table
Many settings can be turned off by preceding them with a @samp{-}.