---
title: "rfcommChannelFlowControlChanged(_:)"
framework: IOBluetooth
role: symbol
role_heading: Instance Method
path: "iobluetooth/iobluetoothrfcommchanneldelegate/rfcommchannelflowcontrolchanged(_:)"
---

# rfcommChannelFlowControlChanged(_:)

## Declaration

```swift
optional func rfcommChannelFlowControlChanged(_ rfcommChannel: IOBluetoothRFCOMMChannel!)
```