diff options
Diffstat (limited to 'drivers/usb/serial/usb-serial.c')
| -rw-r--r-- | drivers/usb/serial/usb-serial.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index bd3fa7ff15b1..f23f3b47ac16 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -562,6 +562,18 @@ static int serial_tiocmset(struct tty_struct *tty, struct file *file, return -EINVAL; } +static int serial_get_icount(struct tty_struct *tty, + struct serial_icounter_struct *icount) +{ + struct usb_serial_port *port = tty->driver_data; + + dbg("%s - port %d", __func__, port->number); + + if (port->serial->type->get_icount) + return port->serial->type->get_icount(tty, icount); + return -EINVAL; +} + /* * We would be calling tty_wakeup here, but unfortunately some line * disciplines have an annoying habit of calling tty->write from @@ -1214,6 +1226,7 @@ static const struct tty_operations serial_ops = { .chars_in_buffer = serial_chars_in_buffer, .tiocmget = serial_tiocmget, .tiocmset = serial_tiocmset, + .get_icount = serial_get_icount, .cleanup = serial_cleanup, .install = serial_install, .proc_fops = &serial_proc_fops, |