---
title: IsochIO_Impl
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/iousbhostpipe/3366019-isochio_impl
---

# IsochIO_Impl

## Declaration

```occ
kern_return_t IsochIO_Impl(IOMemoryDescriptor *dataBuffer, IOMemoryDescriptor *frameList, uint64_t firstFrameNumber, OSAction *completion);
```