HPET_MIN_CYCLES
return res < HPET_MIN_CYCLES ? -ETIME : 0;
#define HPET_MIN_PROG_DELTA (HPET_MIN_CYCLES * 12)
return res < HPET_MIN_CYCLES ? -ETIME : 0;
#define HPET_MIN_PROG_DELTA (HPET_MIN_CYCLES + (HPET_MIN_CYCLES >> 1))