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-rw-r--r--Documentation/serial/driver7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/serial/driver b/Documentation/serial/driver
index 50f3d94ed50b..3b2a97d5ecc7 100644
--- a/Documentation/serial/driver
+++ b/Documentation/serial/driver
@@ -133,6 +133,13 @@ hardware.
Locking: none.
+ unthrottle(port)
+ Notify the serial driver that characters can now be sent to the serial
+ port without fear of overrunning the input buffers of the line
+ disciplines.
+
+ Locking: none.
+
send_xchar(port,ch)
Transmit a high priority character, even if the port is stopped.
This is used to implement XON/XOFF flow control and tcflow(). If