HCI_HOTKEY_EVENT
result = hci_write(dev, HCI_HOTKEY_EVENT,
result = hci_write(dev, HCI_HOTKEY_EVENT,
result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);