/* Set the data read from the usb port into the serial port buffer. */
        tty = tty_port_tty_get(&port->port);
        if (!tty) {
-               dev_dbg(&port->dev, "%s - bad tty pointer - exiting\n",
+               dev_err(&port->dev, "%s - bad tty pointer - exiting\n",
                        __func__);
                return;
        }
                result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
 
                if (result)
-                       dev_dbg(&port->dev,
+                       dev_err(&port->dev,
                                "%s - failed submitting interrupt in urb, error code=%d\n",
                                __func__, result);
        }
        /* Try to resubmit the urb. */
        result = usb_submit_urb(urb, GFP_ATOMIC);
        if (result)
-               dev_dbg(&port->dev,
+               dev_err(&port->dev,
                        "%s - failed submitting interrupt in urb, error code=%d\n",
                        __func__, result);
 }
 
        /* Make sure the urb is initialized. */
        if (!port->interrupt_in_urb) {
-               dev_dbg(&port->dev, "%s - interrupt urb not initialized\n",
+               dev_err(&port->dev, "%s - interrupt urb not initialized\n",
                        __func__);
                return -ENODEV;
        }
        result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 
        if (result) {
-               dev_dbg(&port->dev,
+               dev_err(&port->dev,
                        "%s - failed submitting interrupt in urb, error code=%d\n",
                        __func__, result);
                goto exit;
                                METROUSB_SET_REQUEST_TYPE, METROUSB_SET_MODEM_CTRL_REQUEST,
                                control_state, 0, NULL, 0, WDR_TIMEOUT);
        if (retval < 0)
-               dev_dbg(&serial->dev->dev,
+               dev_err(&serial->dev->dev,
                        "%s - set modem ctrl=0x%x failed, error code=%d\n",
                        __func__, mcr, retval);
 
        port->interrupt_in_urb->dev = port->serial->dev;
        result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
        if (result)
-               dev_dbg(tty->dev,
+               dev_err(tty->dev,
                        "failed submitting interrupt in urb error code=%d\n",
                        result);
 }