Method enumerateDevices

app/src/IO/Drivers/HID.cpp:293–332

* @brief Re-enumerates all connected HID devices. */

 * @brief Re-enumerates all connected HID devices.
 */
void IO::Drivers::HID::enumerateDevices()
{
  hid_free_enumeration(m_deviceInfoList);
  m_deviceInfoList = hid_enumerate(0x0000, 0x0000);

  QList<DeviceEntry> entries = collectHidDeviceEntries();
  std::sort(entries.begin(), entries.end(), [](const DeviceEntry& a, const DeviceEntry& b) {
    return a.label < b.label;
  });

  QStringList newLabels;
  QStringList newPaths;
  QList<uint16_t> newUsagePages;
  QList<uint16_t> newUsages;
  composeHidDeviceLists(entries, newLabels, newPaths, newUsagePages, newUsages);

  if (newLabels == m_deviceLabels)
    return;

  const QString prevPath = (m_deviceIndex > 0 && m_deviceIndex < m_devicePaths.size())
                           ? m_devicePaths.at(m_deviceIndex)
                           : QString();

  m_deviceLabels     = newLabels;
  m_devicePaths      = newPaths;
  m_deviceUsagePages = newUsagePages;
  m_deviceUsages     = newUsages;

  const int newIndex = restoreHidSelectionIndex(prevPath);
  if (newIndex != m_deviceIndex) {
    m_deviceIndex = newIndex;
    Q_EMIT deviceIndexChanged();
  }

  updateHidUsageCache();

  Q_EMIT deviceListChanged();
  Q_EMIT deviceInfoChanged();
  Q_EMIT configurationChanged();
}

/**
 * @brief Walks the hidapi device-info linked list and merges duplicates by VID:PID:serial.