int64_val
uval.int64_val = c;
uval.int64_val = l;
returnstat = pr_printf(context, "%"PRId64, uval->int64_val);
returnstat = pr_printf(context, "0x%"PRIx64, uval->int64_val);
#define int64_val tag.int64_val
int64_t int64_val;
int64_t int64_val = 20;
if (ddi_prop_update_int64(DDI_DEV_T_NONE, devi, "int64", int64_val)