FAN_PERIOD_TO_RPM
return sprintf(buf, "%d\n", FAN_PERIOD_TO_RPM(temp));
FAN_PERIOD_TO_RPM(data->fan[attr->index]));
#define FAN_RPM_TO_PERIOD FAN_PERIOD_TO_RPM
#define FAN_RPM_TO_PERIOD FAN_PERIOD_TO_RPM
*val = FAN_PERIOD_TO_RPM(data->fan[channel]);
*val = FAN_PERIOD_TO_RPM(data->fan_min[channel]);
*val = FAN_PERIOD_TO_RPM(data->fan_max[channel]);
rpm = FAN_PERIOD_TO_RPM(period);
#define FAN_RPM_TO_PERIOD FAN_PERIOD_TO_RPM