cmos_write
cmos_write(0x32, cmos->century);
cmos_write(0x09, cmos->year);
cmos_write(0x08, cmos->month);
cmos_write(0x07, cmos->day);
cmos_write(0x04, cmos->hour);
cmos_write(0x02, cmos->minute);
cmos_write(0x00, cmos->second);
cmos_write(0x0b, status_b);
cmos_write(0x0b, status_b);
cmos_write(0x32, cmos->century);
cmos_write(0x09, cmos->year);
cmos_write(0x08, cmos->month);
cmos_write(0x07, cmos->day);
cmos_write(0x04, cmos->hour);
cmos_write(0x02, cmos->minute);
cmos_write(0x00, cmos->second);