---
title: IsochIO
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/iousbhostpipe/3438063-isochio
---

# IsochIO

## Declaration

```occ
kern_return_t IsochIO(IOMemoryDescriptor *dataBuffer, IOMemoryDescriptor *frameList, uint64_t firstFrameNumber, OSAction *completion, OSDispatchMethod supermethod);
```