| DeviceRequestTypeToEventCode(DeviceRequestType) | Convert a DeviceRequestType back to a TL401K event code. Returns null when there is no sensible TL401K event code for the given request type. |
| DeviceRequestTypeToEventCode(String) | Convert a DeviceRequestType value back to a TL401K event code. Returns null when there is no sensible TL401K event code for the given request type. |