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# initInputReport

Starts reading the input report from the device.

```
virtual kern_return_t initInputReport();
```

## Return Value

<doc://com.apple.documentation/documentation/DriverKit/kIOReturnSuccess> on success, or another value if an error occurs. See <doc://com.apple.documentation/documentation/DriverKit/error-codes>.

## Discussion

This method requests the input report from the USB device asynchronously, delivering the results to the [`CompleteInputReport`](/documentation/HIDDriverKit/IOUserUSBHostHIDDevice/CompleteInputReport) method.

You don’t need to call this method directly. The service’s [`Start`](/documentation/HIDDriverKit/IOUserUSBHostHIDDevice/Start) method calls it when the service first runs, and the service requests new input reports regularly.

---

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