#define EnableInt() \
writew(DEFAULT_INTR, ioaddr + IntEnable)
-static int max_intrloop = 50;
-static int multicast_filter_limit = 0x40;
+static const int max_intrloop = 50;
+static const int multicast_filter_limit = 0x40;
static int rio_open (struct net_device *dev);
static void rio_timer (unsigned long data);