static int cp210x_startup(struct usb_serial *);
static void cp210x_dtr_rts(struct usb_serial_port *p, int on);
-static int debug;
+static bool debug;
static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x045B, 0x0053) }, /* Renesas RX610 RX-Stick */