---
title: "IOCatalogueSendData(_:_:_:_:)"
framework: IOKit
role: symbol
role_heading: Function
platforms: [macOS 10.0+]
path: iokit/1514405-iocataloguesenddata
---

# IOCatalogueSendData(_:_:_:_:)

## Declaration

```swift
func IOCatalogueSendData(_ mainPort: mach_port_t, _ flag: UInt32, _ buffer: UnsafePointer<CChar>!, _ size: UInt32) -> kern_return_t
```