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

# IOUSBDevReqOOLTO

## Declaration

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

## Topics

### Instance Properties

- [bRequest](iokit/iousbdevreqoolto/1426067-brequest.md)
- [bmRequestType](iokit/iousbdevreqoolto/1426141-bmrequesttype.md)
- [completionTimeout](iokit/iousbdevreqoolto/1425425-completiontimeout.md)
- [noDataTimeout](iokit/iousbdevreqoolto/1426350-nodatatimeout.md)
- [pData](iokit/iousbdevreqoolto/1425780-pdata.md)
- [pipeRef](iokit/iousbdevreqoolto/1425771-piperef.md)
- [wIndex](iokit/iousbdevreqoolto/1426035-windex.md)
- [wLenDone](iokit/iousbdevreqoolto/1426094-wlendone.md)
- [wLength](iokit/iousbdevreqoolto/1426135-wlength.md)
- [wValue](iokit/iousbdevreqoolto/1425763-wvalue.md)