time_to_us
if (*ac <= 0 || time_to_us(av[0]) < 0)
ep->par[0] = time_to_us(av[0]);
if (*ac <= 0 || time_to_us(av[0]) < 0)
ep->par[1] = time_to_us(av[0]);
if (*ac <= 0 || time_to_us(av[0]) < 0)
ep->par[0] = time_to_us(av[0]);
if (*ac <= 0 || time_to_us(av[0]) < 0)
ep->par[1] = time_to_us(av[0]);
if (*ac <= 0 || time_to_us(av[0]) < 0)
ep->par[2] = time_to_us(av[0]);