✨ DA3.5G: Read the FW version upon startup.

This is not used yet, but at some point, we want to display this information in the UI for all devices.

src/Exo/Devices/Exo.Devices.Razer.Legacy/RazerDeathAdder35GDeviceDriver.cs

@@ -2,6 +2,7 @@
 using System.Collections.Immutable;
 using System.Globalization;
 using System.Runtime.CompilerServices;
+using System.Runtime.ExceptionServices;
 using System.Runtime.InteropServices;
 using DeviceTools;
 using DeviceTools.HumanInterfaceDevices;
@@ -139,6 +140,11 @@ CancellationToken cancellationToken
 
  try
  {
+ if (driverType is KernelDriverType.DeathAdderNew)
+ {
+ var (major, minor) = await transport.GetFirmwareVersionAsync(cancellationToken).ConfigureAwait(false);
+ }
+
  // Push the default settings to the device, so that we are in sync.
  await transport.UpdateSettingsAsync(2, 1, 1, 3, cancellationToken).ConfigureAwait(false);
  }
@@ -367,10 +373,14 @@ internal abstract class DeathAdderTransport : IAsyncDisposable
  public virtual ValueTask DisposeAsync() => _controlDevice.DisposeAsync();
 
  public abstract Task UpdateSettingsAsync(byte pollingRate, byte dpiIndex, byte profileIndex, byte lightingState, CancellationToken cancellationToken);
+
+ public virtual Task<(byte Major, byte Minor)> GetFirmwareVersionAsync(CancellationToken cancellationToken)
+ => Task.FromException<(byte, byte)>(ExceptionDispatchInfo.SetCurrentStackTrace(new NotSupportedException()));
 }
 
 internal sealed class DeathAdderNewTransport : DeathAdderTransport
 {
+ private const int ReadFirmwareVersionIoControlCode = 0x222510;
  private const int UpdateSettingsIoControlCode = 0x222528;
 
  private readonly byte[] _buffer;
@@ -388,6 +398,13 @@ public override async Task UpdateSettingsAsync(byte pollingRate, byte dpiIndex,
  _buffer[3] = lightingState;
  await ControlDevice.IoControlAsync(UpdateSettingsIoControlCode, (ReadOnlyMemory<byte>)MemoryMarshal.CreateFromPinnedArray(_buffer, 0, 4), cancellationToken).ConfigureAwait(false);
  }
+
+ public override async Task<(byte Major, byte Minor)> GetFirmwareVersionAsync(CancellationToken cancellationToken)
+ {
+ Array.Clear(_buffer);
+ await ControlDevice.IoControlAsync(ReadFirmwareVersionIoControlCode, MemoryMarshal.CreateFromPinnedArray(_buffer, 0, 2), cancellationToken).ConfigureAwait(false);
+ return (_buffer[0], _buffer[1]);
+ }
 }
 
 internal sealed class RzUddTransport : DeathAdderTransport