Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> --- Documentation/serial/driver | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/serial/driver b/Documentation/serial/driver index 61d520dea4c6e13a..50f3d94ed50b341e 100644 --- a/Documentation/serial/driver +++ b/Documentation/serial/driver @@ -126,6 +126,13 @@ hardware. Interrupts: locally disabled. This call must not sleep + throttle(port) + Notify the serial driver that input buffers for the line discipline are + close to full, and it should somehow signal that no more characters + should be sent to the serial port. + + 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 -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
