Method setOutEndpointIndex

app/src/API/Handlers/USBHandler.cpp:187–213

* @brief Select the active OUT endpoint. */

 * @brief Select the active OUT endpoint.
 */
API::CommandResponse API::Handlers::USBHandler::setOutEndpointIndex(const QString& id,
                                                                    const QJsonObject& params)
{
  if (!params.contains(QStringLiteral("endpointIndex"))) {
    return CommandResponse::makeError(
      id, ErrorCode::MissingParam, QStringLiteral("Missing required parameter: endpointIndex"));
  }

  const int ep_index    = params.value(QStringLiteral("endpointIndex")).toInt();
  const auto& endpoints = IO::ConnectionManager::instance().usb()->outEndpointList();

  if (ep_index < 0 || ep_index >= endpoints.count()) {
    return CommandResponse::makeError(
      id,
      ErrorCode::InvalidParam,
      QString(QStringLiteral("Invalid endpointIndex: %1. Valid range: 0-%2"))
        .arg(ep_index)
        .arg(endpoints.count() - 1));
  }

  IO::ConnectionManager::instance().usb()->setOutEndpointIndex(ep_index);

  QJsonObject result;
  result[QStringLiteral("endpointIndex")] = ep_index;
  result[QStringLiteral("endpointName")]  = endpoints.at(ep_index);
  return CommandResponse::makeSuccess(id, result);
}

/**
 * @brief Set the ISO transfer packet size.