diff options
Diffstat (limited to 'drivers/tty/serial/serial_core.c')
| -rw-r--r-- | drivers/tty/serial/serial_core.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index fcb5342..036e0cc 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -1822,6 +1822,14 @@ uart_set_options(struct uart_port *port, struct console *co, EXPORT_SYMBOL_GPL(uart_set_options); #endif /* CONFIG_SERIAL_CORE_CONSOLE */ +/** + * uart_change_pm - set power state of the port + * + * @state: port descriptor + * @pm_state: new state + * + * Locking: port->mutex has to be held + */ static void uart_change_pm(struct uart_state *state, int pm_state) { struct uart_port *port = state->uart_port; @@ -2495,6 +2503,18 @@ void uart_handle_cts_change(struct uart_port *uport, unsigned int status) } EXPORT_SYMBOL_GPL(uart_handle_cts_change); +/** + * uart_insert_char - push a char to the uart layer + * + * User is responsible to call tty_flip_buffer_push when they are done with + * insertion. + * + * @port: corresponding port + * @status: state of the serial port RX buffer (LSR for 8250) + * @overrun: mask of overrun bits in @status + * @ch: character to push + * @flag: flag for the character (see TTY_NORMAL and friends) + */ void uart_insert_char(struct uart_port *port, unsigned int status, unsigned int overrun, unsigned int ch, unsigned int flag) { |