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  "documentType" : "symbol",
  "framework" : "IOUSBHost",
  "identifier" : "/documentation/IOUSBHost/IOUSBGetNextDescriptorWithType(_:_:_:)",
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  "title" : "IOUSBGetNextDescriptorWithType(_:_:_:)"
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# IOUSBGetNextDescriptorWithType(_:_:_:)

Obtains the next descriptor in a configuration descriptor that matches the type.

```
func IOUSBGetNextDescriptorWithType(_ configurationDescriptor: UnsafePointer<IOUSBConfigurationDescriptor>!, _ currentDescriptor: UnsafePointer<IOUSBDescriptorHeader>!, _ type: UInt8) -> UnsafePointer<IOUSBDescriptorHeader>!
```

## Parameters

`configurationDescriptor`

A configuration descriptor that contains the descriptors to iterate through.

`currentDescriptor`

A descriptor pointer within the bounds of `configurationDescriptor`, or `nil`.

`type`

The descriptor type to find.

## Return Value

A descriptor pointer, or `nil` if no matching descriptor returns.

## Discussion

This method uses [`IOUSBGetNextDescriptor(_:_:)`](/documentation/IOUSBHost/IOUSBGetNextDescriptor(_:_:)), and further validates that the returned descriptor’s `bDescriptorType` field matches the type parameter.

---

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