#ifdef CONFIG_USB_SERIAL_DEBUG
-static int debug = 1;
+static bool debug = 1;
#else
-static int debug;
+static bool debug;
#endif
/*
static int cdmode = 1;
static int iuu_cardin;
static int iuu_cardout;
-static int xmas;
+static bool xmas;
static int vcc_default = 5;
static void read_rxcmd_callback(struct urb *urb);