Enum EldValidationEntityType NamespaceGeotab.Checkmate.Web AssemblyGeotab.Checkmate.ObjectModel.dll ELD output validation message types. public enum EldValidationEntityType Extension Methods MaintenanceEnumExtensions.GetDescription(Enum) Fields Driver = 2 The error entity type is a Driver. None = 0 The error entity type cannot be determined or was not provided. Vehicle = 1 The error entity type is a Device.