---
title: "ClikaRT::nn::LinearOptions"
sidebar_label: "LinearOptions"
description: "Construction options: everything beyond the two feature counts. Every field is optional / defaulted; the defaults produce a plain packing Linear."
---

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**Header:** `ClikaRT/nn/linear.h`

Construction options: everything beyond the two feature counts. Every field is optional / defaulted; the defaults produce a plain packing [Linear](./Linear.md).

## Data members

### activation {#activation}

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`std::optional<`[`ops::Activation`](../ops/index.md#Activation)`>` **`activation`**

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Fused activation epilogue applied by every forward.

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Declared in `ClikaRT/nn/linear.h`, line 138

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### bias {#bias}

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`bool` **`bias`** `= false`

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Declare form only (`make(in, out, ...)`): declare a [`bias`](./LinearOptions.md#bias) slot for a later bind. The from-tensors overload reads bias presence off its own [`bias`](./LinearOptions.md#bias) argument and ignores this field.

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Declared in `ClikaRT/nn/linear.h`, line 142

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### device {#device}

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`std::optional<`[`Device`](../Device.md)`>` **`device`**

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Placement of the declared slots. Declare form: defaults to cpu. From-tensors form: defaults to the weight's own device; when set, the payloads move there at bind (the declared placement wins).

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Declared in `ClikaRT/nn/linear.h`, line 146

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### dtype {#dtype}

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`std::optional<`[`DataType`](../../index.md#DataType)`>` **`dtype`**

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PIN a dtype: the slots declare at it and every bind casts the payload to it. Unset (the default), a slot ADOPTS the bound payload's dtype (never a cast at rest) and reads [`DataType::Undefined`](../../index.md#DataType) until bound.

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Declared in `ClikaRT/nn/linear.h`, line 150

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### output\_quant {#output_quant}

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`std::optional<`[`OutputQuant`](./OutputQuant.md)`>` **`output_quant`**

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Static output quantization of the product; setting it makes the factory return a [`QLinear`](./QLinear.md) (the static-quant posture; see [qlinear.h](./QLinear.md)). It wins over the weight's own form: a quantized weight WITH output requant is precisely W8A8.

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Declared in `ClikaRT/nn/linear.h`, line 155

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