80 	u8 room;  in keyspan_pda_get_write_room()  local
87 				  0, /* value: 0 means "remaining room" */  in keyspan_pda_get_write_room()
89 				  &room,  in keyspan_pda_get_write_room()
98 	dev_dbg(&port->dev, "roomquery says %d\n", room);  in keyspan_pda_get_write_room()
100 	return room;  in keyspan_pda_get_write_room()
461 	int room;  in keyspan_pda_write_start()  local
465 	 * Guess how much room is left in the device's ring buffer. If our  in keyspan_pda_write_start()
466 	 * write will result in no room left, ask the device to give us an  in keyspan_pda_write_start()
467 	 * interrupt when the room available rises above a threshold but also  in keyspan_pda_write_start()
468 	 * query how much room is currently available (in case our guess was  in keyspan_pda_write_start()
476 	 * the device is full (wait until it says there is room)  in keyspan_pda_write_start()
480 	room = priv->tx_room;  in keyspan_pda_write_start()
483 	if (!test_bit(0, &port->write_urbs_free) || count == 0 || room == 0) {  in keyspan_pda_write_start()
489 	if (count > room)  in keyspan_pda_write_start()
490 		count = room;  in keyspan_pda_write_start()
503 	dev_dbg(&port->dev, "%s - count = %d, txroom = %d\n", __func__, count, room);  in keyspan_pda_write_start()
511 		priv->tx_room = max(priv->tx_room, room + count);  in keyspan_pda_write_start()
518 	if (count == room)  in keyspan_pda_write_start()
575 	/* find out how much room is in the Tx ring */  in keyspan_pda_open()