-static int ir_write (struct usb_serial_port *port, int from_user, const unsigned char *buf, int count);
-static void ir_write_bulk_callback (struct urb *urb, struct pt_regs *regs);
-static void ir_read_bulk_callback (struct urb *urb, struct pt_regs *regs);
-static void ir_set_termios (struct usb_serial_port *port, struct termios *old_termios);
+static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int count);
+static void ir_write_bulk_callback (struct urb *urb);
+static void ir_read_bulk_callback (struct urb *urb);
+static void ir_set_termios (struct usb_serial_port *port, struct ktermios *old_termios);