vserver 1.9.5.x5

[linux-2.6.git] / Documentation / serial / driver

diff --git a/Documentation/serial/driver b/Documentation/serial/driver
index a707e5b..e9c0178 100644 (file)
--- a/Documentation/serial/driver
+++ b/Documentation/serial/driver
@@ -211,18 +211,25 @@ hardware.
        Yes             1       1       character received, marked as
                                        TTY_PARITY
 
+       Other flags may be used (eg, xon/xoff characters) if your
+       hardware supports hardware "soft" flow control.
+
        Locking: none.
        Interrupts: caller dependent.
        This call must not sleep
 
   pm(port,state,oldstate)
-       perform any power management related activities on the specified
-       port.  state indicates the new state (defined by ACPI D0-D3),
+       Perform any power management related activities on the specified
+       port.  State indicates the new state (defined by ACPI D0-D3),
        oldstate indicates the previous state.  Essentially, D0 means
        fully on, D3 means powered down.
 
        This function should not be used to grab any resources.
 
+       This will be called when the port is initially opened and finally
+       closed, except when the port is also the system console.  This
+       will occur even if CONFIG_PM is not set.
+
        Locking: none.
        Interrupts: caller dependent.