---
title: "IOConnectCallAsyncStructMethod(_:_:_:_:_:_:_:_:_:)"
framework: iokit
role: symbol
role_heading: Function
path: iokit/1514403-ioconnectcallasyncstructmethod
---

# IOConnectCallAsyncStructMethod(_:_:_:_:_:_:_:_:_:)

## Declaration

```swift
func IOConnectCallAsyncStructMethod(_ connection: mach_port_t, _ selector: UInt32, _ wake_port: mach_port_t, _ reference: UnsafeMutablePointer<UInt64>!, _ referenceCnt: UInt32, _ inputStruct: UnsafeRawPointer!, _ inputStructCnt: Int, _ outputStruct: UnsafeMutableRawPointer!, _ outputStructCnt: UnsafeMutablePointer<Int>!) -> kern_return_t
```