diff options
| -rw-r--r-- | drivers/usb/serial/spcp8x5.c | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c index 549ef68..e24d23b 100644 --- a/drivers/usb/serial/spcp8x5.c +++ b/drivers/usb/serial/spcp8x5.c @@ -472,8 +472,6 @@ static void spcp8x5_process_read_urb(struct urb *urb) status = priv->line_status; priv->line_status &= ~UART_STATE_TRANSIENT_MASK; spin_unlock_irqrestore(&priv->lock, flags); - /* wake up the wait for termios */ - wake_up_interruptible(&port->delta_msr_wait); if (!urb->actual_length) return; @@ -509,71 +507,6 @@ static void spcp8x5_process_read_urb(struct urb *urb) tty_flip_buffer_push(&port->port); } -static int spcp8x5_wait_modem_info(struct usb_serial_port *port, - unsigned int arg) -{ - struct spcp8x5_private *priv = usb_get_serial_port_data(port); - unsigned long flags; - unsigned int prevstatus; - unsigned int status; - unsigned int changed; - - spin_lock_irqsave(&priv->lock, flags); - prevstatus = priv->line_status; - spin_unlock_irqrestore(&priv->lock, flags); - - while (1) { - /* wake up in bulk read */ - interruptible_sleep_on(&port->delta_msr_wait); - - /* see if a signal did it */ - if (signal_pending(current)) - return -ERESTARTSYS; - - if (port->serial->disconnected) - return -EIO; - - spin_lock_irqsave(&priv->lock, flags); - status = priv->line_status; - spin_unlock_irqrestore(&priv->lock, flags); - - changed = prevstatus^status; - - if (((arg & TIOCM_RNG) && (changed & MSR_STATUS_LINE_RI)) || - ((arg & TIOCM_DSR) && (changed & MSR_STATUS_LINE_DSR)) || - ((arg & TIOCM_CD) && (changed & MSR_STATUS_LINE_DCD)) || - ((arg & TIOCM_CTS) && (changed & MSR_STATUS_LINE_CTS))) - return 0; - - prevstatus = status; - } - /* NOTREACHED */ - return 0; -} - -static int spcp8x5_ioctl(struct tty_struct *tty, - unsigned int cmd, unsigned long arg) -{ - struct usb_serial_port *port = tty->driver_data; - - dev_dbg(&port->dev, "%s (%d) cmd = 0x%04x\n", __func__, - port->number, cmd); - - switch (cmd) { - case TIOCMIWAIT: - dev_dbg(&port->dev, "%s (%d) TIOCMIWAIT\n", __func__, - port->number); - return spcp8x5_wait_modem_info(port, arg); - - default: - dev_dbg(&port->dev, "%s not supported = 0x%04x", __func__, - cmd); - break; - } - - return -ENOIOCTLCMD; -} - static int spcp8x5_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear) { @@ -634,7 +567,6 @@ static struct usb_serial_driver spcp8x5_device = { .carrier_raised = spcp8x5_carrier_raised, .set_termios = spcp8x5_set_termios, .init_termios = spcp8x5_init_termios, - .ioctl = spcp8x5_ioctl, .tiocmget = spcp8x5_tiocmget, .tiocmset = spcp8x5_tiocmset, .port_probe = spcp8x5_port_probe, |