ds2781_battery_io
return ds2781_battery_io(dev_info, buf, addr, count, 0);
return ds2781_battery_io(dev_info, val, addr, sizeof(u8), 0);
ret = ds2781_battery_io(dev_info, raw, addr, sizeof(raw), 0);
return ds2781_battery_io(dev_info, val, addr, count, 0);
return ds2781_battery_io(dev_info, val, addr, count, 1);