---
title: AsyncDeviceRequest_Impl
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/iousbhostdevice/3294608-asyncdevicerequest_impl
---

# AsyncDeviceRequest_Impl

## Declaration

```occ
kern_return_t AsyncDeviceRequest_Impl(IOService *forClient, uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, uint16_t wLength, IOMemoryDescriptor *dataBuffer, OSAction *completion, uint32_t completionTimeoutMs);
```