---
title: IOUSBDevReqOOL
framework: kernel
role: symbol
role_heading: Type Alias
path: kernel/iousbdevreqool
---

# IOUSBDevReqOOL

An internal structure to pass parameters between IOUSBLib and UserClient.

## Declaration

```occ
typedef struct IOUSBDevReqOOL IOUSBDevReqOOL;
```

## Topics

### Getting the Properties

- [bmRequestType](kernel/iousbdevreqool/1546195-bmrequesttype.md)
- [bRequest](kernel/iousbdevreqool/1546179-brequest.md)
- [wValue](kernel/iousbdevreqool/1546508-wvalue.md)
- [wIndex](kernel/iousbdevreqool/1546401-windex.md)
- [wLength](kernel/iousbdevreqool/1545970-wlength.md)
- [pData](kernel/iousbdevreqool/1546153-pdata.md)
- [wLenDone](kernel/iousbdevreqool/1546159-wlendone.md)
- [pipeRef](kernel/iousbdevreqool/1546299-piperef.md)

## See Also

### Device Requests

- [IOUSBDevReqOOLTO](kernel/iousbdevreqoolto.md)
- [IOUSBDevRequest](kernel/iousbdevrequest.md)
- [IOUSBDevRequestTO](kernel/iousbdevrequestto.md)
- [IOUSBDeviceRequest](kernel/iousbdevicerequest.md)
- [IOUSBDeviceRequestPtr](kernel/iousbdevicerequestptr.md)
- [IOUSBDeviceRequestSetSELData](kernel/iousbdevicerequestsetseldata.md)