footbridge_intr
"serr", footbridge_intr, sc);
"sdram parity", footbridge_intr, sc);
"data parity", footbridge_intr, sc);
"mast abt", footbridge_intr, sc);
"targ abt", footbridge_intr, sc);
"parity", footbridge_intr, sc);
static int footbridge_intr(void *arg);