---
title: IOUSBBulkPipeReq
framework: IOKit
role: symbol
role_heading: Structure
platforms: [Mac Catalyst 18.4+, macOS 10.1+]
path: iokit/iousbbulkpipereq
---

# IOUSBBulkPipeReq

## Declaration

```occ
typedef struct IOUSBBulkPipeReq {
    ...
} IOUSBBulkPipeReq;
```

## Topics

### Instance Properties

- [buf](iokit/iousbbulkpipereq/1425877-buf.md)
- [completionTimeout](iokit/iousbbulkpipereq/1425832-completiontimeout.md)
- [noDataTimeout](iokit/iousbbulkpipereq/1426340-nodatatimeout.md)
- [pipeRef](iokit/iousbbulkpipereq/1426159-piperef.md)
- [size](iokit/iousbbulkpipereq/1425322-size.md)