diff options
| -rw-r--r-- | Documentation/serial/driver | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/Documentation/serial/driver b/Documentation/serial/driver index a707e5b33953..e9c0178cd202 100644 --- 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. |