DEFAULT_SPLIT_TIMEOUT
card->split_timeout.hi = DEFAULT_SPLIT_TIMEOUT / 8000;
card->split_timeout.lo = (DEFAULT_SPLIT_TIMEOUT % 8000) << 19;
card->split_timeout.cycles = DEFAULT_SPLIT_TIMEOUT;
card->split_timeout.jiffies = isoc_cycles_to_jiffies(DEFAULT_SPLIT_TIMEOUT);