# 1.1.0 installation-state FlatBuffers

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> Version: 1.1.0. Release requirements; implementation and delivery are recorded below.
> [Verification status](/Riff/1-1-0/status).

Wire owner: [format registry](/Riff/1-1-0/formats). header.profile_slot is zero; active_profile_slot
is 1..3. playback_profile_slot zero means no application-wide playback owner, otherwise 1..3. These
fields are slots, not hash entity IDs. Storage selection bootstrap and Android SAF grants are not
duplicated here.

## installation_state.fbs

```fbs
include "state_common.fbs";

namespace link.roadio.riff.state.fbs;

enum DiagonalMode:ubyte { AUTO, DIAGONAL, CARD }
enum DimBacklight:ubyte { AUTO, OFF, DAY, NIGHT }
enum ReplayGainMode:ubyte { N, I, F }
enum ReplayGainTarget:ubyte {
  ZERO = 0,
  LUFS_16 = 16,
  LUFS_18 = 18,
  LUFS_23 = 23
}

table InstallationState {
  header:FileHeader (required);
  active_profile_slot:ubyte = 1;
  playback_profile_slot:ubyte;
  diagonal_mode:DiagonalMode = AUTO;
  calibration_ppi_x:float = null;
  calibration_ppi_y:float = null;
  dim_backlight:DimBacklight = AUTO;
  replay_gain_mode:ReplayGainMode = F;
  replay_gain_target:ReplayGainTarget = LUFS_23;
}

root_type InstallationState;
file_identifier "INST";
file_extension "fb";
```