✨ Implement Razer DeathAdder 3.5G support over the legacy driver. 🎉

Spent way too much time on this device, but at least the annoying part is done.

Docs/Razer DeathAdder 3.5G.md

@@ -78,6 +78,8 @@ Thankfully, this time, the driver is very lean compared to the mess of the newer
 What appears obvious from the get-go is that this driver can actually read the firmware version, something that I never observed with Synapse.
 This is done via a get report URB.
 
+From a quick search through the driver, the IOCTL to use to send report `10` should be `222528`. A naive test sending only the raw 4 byte payload yielded the correct results, so… it works.
+
 ### Synapse 2 Driver
 
 Razer, as always, installs a lot of system drivers for their devices. This made things a bit more complicated to find out, but one driver was seemingly "pre-installed" on my computer, presumably from an connection of the mouse a few years ago.

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

@@ -130,9 +130,9 @@ CancellationToken cancellationToken
 			throw new InvalidOperationException("The devices interface for the device were not found.");
 		}
 
-		var transport = driverType switch
+		DeathAdderTransport transport = driverType switch
 		{
-			KernelDriverType.DeathAdderNew => throw new NotImplementedException("Legacy driver is not implemented yet."),
+			KernelDriverType.DeathAdderNew => new DeathAdderNewTransport(),
 			KernelDriverType.RzUdd => await RzUddTransport.CreateAsync(productId, cancellationToken).ConfigureAwait(false),
 			_ => throw new NotImplementedException("This device requires a kernel driver to work."),
 		};
@@ -358,6 +358,27 @@ internal abstract class DeathAdderTransport : IAsyncDisposable
 	public abstract Task UpdateSettingsAsync(byte pollingRate, byte dpiIndex, byte profileIndex, byte lightingState, CancellationToken cancellationToken);
 }
 
+internal sealed class DeathAdderNewTransport : DeathAdderTransport
+{
+	private const int UpdateSettingsIoControlCode = 0x222528;
+
+	private readonly byte[] _buffer;
+
+	public DeathAdderNewTransport() : base(new(Device.OpenHandle(@"\\.\DANew", DeviceAccess.None, FileShare.ReadWrite), FileAccess.ReadWrite, 0, true))
+	{
+		_buffer = GC.AllocateUninitializedArray<byte>(4, true);
+	}
+
+	public override async Task UpdateSettingsAsync(byte pollingRate, byte dpiIndex, byte profileIndex, byte lightingState, CancellationToken cancellationToken)
+	{
+		_buffer[0] = pollingRate;
+		_buffer[1] = dpiIndex;
+		_buffer[2] = profileIndex;
+		_buffer[3] = lightingState;
+		await ControlDevice.IoControlAsync(UpdateSettingsIoControlCode, (ReadOnlyMemory<byte>)MemoryMarshal.CreateFromPinnedArray(_buffer, 0, 4), cancellationToken).ConfigureAwait(false);
+	}
+}
+
 internal sealed class RzUddTransport : DeathAdderTransport
 {
 	private const int RazerDeviceEnumerationIoControlCode = unchecked((int)0x88883000);