<!--
{
  "availability" : [
    "iOS: 10.0.0 - 14.0.0",
    "iPadOS: 10.0.0 - 14.0.0",
    "macCatalyst: 13.1.0 - 14.0.0",
    "macOS: 10.12.0 - 11.0.0",
    "tvOS: 10.0.0 - 14.0.0",
    "visionOS: 1.0.0 - 1.0.0",
    "watchOS: 3.0.0 - 7.0.0"
  ],
  "documentType" : "symbol",
  "framework" : "Accelerate",
  "identifier" : "/documentation/Accelerate/BNNSFilterCreateFullyConnectedLayer(_:_:_:_:)",
  "metadataVersion" : "0.1.0",
  "role" : "Function",
  "symbol" : {
    "kind" : "Function",
    "modules" : [
      "Accelerate"
    ],
    "preciseIdentifier" : "c:@F@BNNSFilterCreateFullyConnectedLayer"
  },
  "title" : "BNNSFilterCreateFullyConnectedLayer(_:_:_:_:)"
}
-->

# BNNSFilterCreateFullyConnectedLayer(_:_:_:_:)

Returns a fully connected filter, initialized with input, output, layer, and filter parameters.

```
func BNNSFilterCreateFullyConnectedLayer(_ in_desc: UnsafePointer<BNNSVectorDescriptor>, _ out_desc: UnsafePointer<BNNSVectorDescriptor>, _ layer_params: UnsafePointer<BNNSFullyConnectedLayerParameters>, _ filter_params: UnsafePointer<BNNSFilterParameters>?) -> BNNSFilter?
```

## Parameters

`in_desc`

Pointer to a `BNNSVectorDescriptor` struct describing the input

`out_desc`

Pointer to a `BNNSVectorDescriptor` struct describing the output

`layer_params`

Pointer to a `BNNSFullyConnectedLayerParameters` struct describing the layer parameters

`filter_params`

Pointer to a `BNNSFilterParameters` struct describing the filter parameters

## Return Value

A BNNSFilter object representing a fully connected filter configured with the specified  parameters

## Discussion

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)