---
title: IOUSBGetEndpointIntervalEncodedMicroframes
framework: usbdriverkit
role: symbol
role_heading: Function
path: usbdriverkit/iousbgetendpointintervalencodedmicroframes
---

# IOUSBGetEndpointIntervalEncodedMicroframes

Extracts the interval of an endpoint descriptor.

## Declaration

```occ
uint32_t IOUSBGetEndpointIntervalEncodedMicroframes(uint32_t usbDeviceSpeed, const IOUSBEndpointDescriptor *descriptor);
```

## Parameters

- `usbDeviceSpeed`: The operational speed of the device.
- `descriptor`: The endpoint descriptor to parse.

## Return Value

Return Value The encoded endpoint interval.

## Discussion

Discussion This method parses an endpoint descriptor and returns the service interval as n in (2^(n-1)) microframes.

## See Also

### Endpoint Descriptors

- [IOUSBGetNextEndpointDescriptor](usbdriverkit/iousbgetnextendpointdescriptor.md)
- [IOUSBGetEndpointAddress](usbdriverkit/iousbgetendpointaddress.md)
- [IOUSBGetEndpointBurstSize](usbdriverkit/iousbgetendpointburstsize.md)
- [IOUSBGetEndpointDirection](usbdriverkit/iousbgetendpointdirection.md)
- [IOUSBGetEndpointIntervalFrames](usbdriverkit/iousbgetendpointintervalframes.md)
- [IOUSBGetEndpointIntervalMicroframes](usbdriverkit/iousbgetendpointintervalmicroframes.md)
- [IOUSBGetEndpointMaxPacketSize](usbdriverkit/iousbgetendpointmaxpacketsize.md)
- [IOUSBGetEndpointMaxStreams](usbdriverkit/iousbgetendpointmaxstreams.md)
- [IOUSBGetEndpointMaxStreamsEncoded](usbdriverkit/iousbgetendpointmaxstreamsencoded.md)
- [IOUSBGetEndpointMult](usbdriverkit/iousbgetendpointmult.md)
- [IOUSBGetEndpointNumber](usbdriverkit/iousbgetendpointnumber.md)
- [IOUSBGetEndpointType](usbdriverkit/iousbgetendpointtype.md)