---
title: IOUSBDeviceRequest
framework: IOKit
role: symbol
role_heading: Structure
platforms: [Mac Catalyst 13.0+, macOS 10.15+]
path: iokit/iousbdevicerequest
---

# IOUSBDeviceRequest

## Declaration

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

## Topics

### Instance Properties

- [bRequest](iokit/iousbdevicerequest/3166178-brequest.md)
- [bmRequestType](iokit/iousbdevicerequest/3166179-bmrequesttype.md)
- [wIndex](iokit/iousbdevicerequest/3166180-windex.md)
- [wLength](iokit/iousbdevicerequest/3166181-wlength.md)
- [wValue](iokit/iousbdevicerequest/3166182-wvalue.md)