@kvaser/canking-api/doc_md/ipc/functions/requestLinMessage.md

CanKing API to communicate with the CanKing service using Node.js.

[**Kvaser CanKing GUI Extensions SDK v7.5.1**](../../README.md)

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[Kvaser CanKing GUI Extensions SDK](../../modules.md) / [ipc](../README.md) / requestLinMessage

# Function: requestLinMessage()

> **requestLinMessage**(`channelId`, `frameId`): `Promise`\<`void`\>

Writes a LIN request message (a LIN message header) to the LIN bus. A slave in the system is then expected to fill in the header
with data. Note: This call is only available in master mode.

## Parameters

### channelId

`string`

Identifier of the out channel to be used when sending the message.

### frameId

`number`

Identifier of the message to be requested.

## Returns

`Promise`\<`void`\>