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Diffstat (limited to 'Documentation/serial/driver')
| -rw-r--r-- | Documentation/serial/driver | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/serial/driver b/Documentation/serial/driver index 61d520dea4c6..50f3d94ed50b 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 |