diff options
Diffstat (limited to 'drivers/usb/serial/usb-serial.c')
| -rw-r--r-- | drivers/usb/serial/usb-serial.c | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 31c7a0939b98..ce6997f346f4 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -721,6 +721,41 @@ static const struct tty_port_operations serial_port_ops = { .dtr_rts = serial_dtr_rts, }; +/** + * serial_install - install tty + * @driver: the driver (USB in our case) + * @tty: the tty being created + * + * Create the termios objects for this tty. We use the default USB + * serial ones but permit them to be overriddenby serial->type->termios. + * This lets us remove all the ugly hackery + */ + +static int serial_install(struct tty_driver *driver, struct tty_struct *tty) +{ + int idx = tty->index; + struct usb_serial *serial; + int retval; + + /* If the termios setup has yet to be done */ + if (tty->driver->termios[idx] == NULL) { + /* perform the standard setup */ + retval = tty_init_termios(tty); + if (retval) + return retval; + /* allow the driver to update it */ + serial = usb_serial_get_by_index(tty->index); + if (serial->type->init_termios) + serial->type->init_termios(tty); + usb_serial_put(serial); + } + /* Final install (we use the default method) */ + tty_driver_kref_get(driver); + tty->count++; + driver->ttys[idx] = tty; + return 0; +} + int usb_serial_probe(struct usb_interface *interface, const struct usb_device_id *id) { @@ -1228,7 +1263,8 @@ static const struct tty_operations serial_ops = { .chars_in_buffer = serial_chars_in_buffer, .tiocmget = serial_tiocmget, .tiocmset = serial_tiocmset, - .shutdown = serial_do_free, + .shutdown = serial_do_free, + .install = serial_install, .proc_fops = &serial_proc_fops, }; |