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  "title" : "BluetoothHCI packet size constants"
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# BluetoothHCI packet size constants

## Topics

### Constants

[`var kBluetoothHCICommandPacketHeaderSize: Int`](/documentation/IOBluetooth/kBluetoothHCICommandPacketHeaderSize)

[`var kBluetoothHCICommandPacketMaxDataSize: Int`](/documentation/IOBluetooth/kBluetoothHCICommandPacketMaxDataSize)

[`var kBluetoothHCIDataPacketHeaderSize: Int`](/documentation/IOBluetooth/kBluetoothHCIDataPacketHeaderSize)

[`var kBluetoothHCIDataPacketMaxDataSize: Int`](/documentation/IOBluetooth/kBluetoothHCIDataPacketMaxDataSize)

[`var kBluetoothHCIEventPacketHeaderSize: Int`](/documentation/IOBluetooth/kBluetoothHCIEventPacketHeaderSize)

[`var kBluetoothHCIEventPacketMaxDataSize: Int`](/documentation/IOBluetooth/kBluetoothHCIEventPacketMaxDataSize)

[`var kBluetoothHCIMaxCommandPacketSize: Int`](/documentation/IOBluetooth/kBluetoothHCIMaxCommandPacketSize)

[`var kBluetoothHCIMaxDataPacketSize: Int`](/documentation/IOBluetooth/kBluetoothHCIMaxDataPacketSize)

[`var kBluetoothHCIMaxEventPacketSize: Int`](/documentation/IOBluetooth/kBluetoothHCIMaxEventPacketSize)


---

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