58 static int metrousb_is_unidirectional_mode(struct usb_serial *serial)  in metrousb_is_unidirectional_mode()  argument
60 	u16 product_id = le16_to_cpu(serial->dev->descriptor.idProduct);  in metrousb_is_unidirectional_mode()
65 static int metrousb_calc_num_ports(struct usb_serial *serial,  in metrousb_calc_num_ports()  argument
68 	if (metrousb_is_unidirectional_mode(serial)) {  in metrousb_calc_num_ports()
70 			dev_err(&serial->interface->dev, "interrupt-out endpoint missing\n");  in metrousb_calc_num_ports()
84 	if (!metrousb_is_unidirectional_mode(port->serial))  in metrousb_send_unidirectional_cmd()
93 	ret = usb_interrupt_msg(port->serial->dev,  in metrousb_send_unidirectional_cmd()
94 		usb_sndintpipe(port->serial->dev, port->interrupt_out_endpointAddress),  in metrousb_send_unidirectional_cmd()
172 	struct usb_serial *serial = port->serial;  in metrousb_open()  local
184 	usb_clear_halt(serial->dev, port->interrupt_in_urb->pipe);  in metrousb_open()
187 	usb_fill_int_urb(port->interrupt_in_urb, serial->dev,  in metrousb_open()
188 			  usb_rcvintpipe(serial->dev, port->interrupt_in_endpointAddress),  in metrousb_open()
218 static int metrousb_set_modem_ctrl(struct usb_serial *serial, unsigned int control_state)  in metrousb_set_modem_ctrl()  argument
223 	dev_dbg(&serial->dev->dev, "%s - control state = %d\n",  in metrousb_set_modem_ctrl()
233 	retval = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),  in metrousb_set_modem_ctrl()
237 		dev_err(&serial->dev->dev,  in metrousb_set_modem_ctrl()
299 	struct usb_serial *serial = port->serial;  in metrousb_tiocmset()  local
321 	return metrousb_set_modem_ctrl(serial, control_state);  in metrousb_tiocmset()