apple_smc_scan_sensor_range
apple_smc_scan_sensor_range(dev, start, end, 'V',
apple_smc_scan_sensor_range(dev, start, end, 'I',
apple_smc_scan_sensor_range(dev, start, end, 'P',
void apple_smc_scan_sensor_range(device_t, unsigned int, unsigned int,