---
title: HMCharacteristicMetadataFormatTLV8
framework: homekit
role: symbol
role_heading: Global Variable
path: homekit/hmcharacteristicmetadataformattlv8
---

# HMCharacteristicMetadataFormatTLV8

Indicates that the characteristic has TLV8 values.

## Declaration

```swift
let HMCharacteristicMetadataFormatTLV8: String
```

## Discussion

Discussion The value is an NSData object containing a set of one or more TLV8’s, which are packed type-length-value items with an 8-bit type, 8-bit length, and N-byte value.

## See Also

### Data

- [HMCharacteristicMetadataFormatData](homekit/hmcharacteristicmetadataformatdata.md)