# OpenSerialStreamResponse - Source proto: `rb/api/serial.proto` Response for open serial stream. | Field | Type | Label | Description | | ----- | ---- | ----- | ----------- | | response_header | [ResponseHeader](../header/responseheader.md#rb-api-responseheader) | | | | connect_result | [SerialConnectionStatus](serialconnectionstatus.md#rb-api-serialconnectionstatus) | | | | write_result | [SerialWriteResult](serialwriteresult.md#rb-api-serialwriteresult) | | | | read_data | [bytes](../scalar-value-types.md#scalar-value-types) | | |