---
title: IOUSBGetEndpointMaxStreams
framework: usbdriverkit
role: symbol
role_heading: Function
path: usbdriverkit/iousbgetendpointmaxstreams
---

# IOUSBGetEndpointMaxStreams

Extracts the number of streams an endpoint supports.

## Declaration

```occ
uint32_t IOUSBGetEndpointMaxStreams(uint32_t usbDeviceSpeed, const IOUSBEndpointDescriptor *descriptor, const IOUSBSuperSpeedEndpointCompanionDescriptor *companionDescriptor);
```

## Parameters

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

## Return Value

Return Value The number of streams.

## Discussion

Discussion This method parses endpoint descriptors and returns the number of streams supported.

## See Also

### Endpoint Descriptors

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