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# serviceClassMajor

Get the major service class of the device.

```
var serviceClassMajor: BluetoothServiceClassMajor { get }
```

## Discussion

This value is only meaningful if the target device has been seen during an inquiry. This can be by checking the result of -getLastInquiryUpdate. If nil is returned, then the device hasn’t been seen.

## See Also

[`-  getServiceClassMajor`](/documentation/IOBluetooth/IOBluetoothDevice/getServiceClassMajor)

Get the major service class of the device.


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