Fix Pi 5 driver selection crash when only libgpiod.so.3 is installed

src/System.Device.Gpio/System/Device/Gpio/GpioController.cs

@@ -463,25 +463,45 @@ private static GpioDriver GetBestDriverForBoardOnLinux()
 
             case RaspberryBoardInfo.Model.RaspberryPi5:
 
-                // For now, for Raspberry Pi 5, we'll use the LibGpiodDriver.
-                // We need to create a new driver for the Raspberry Pi 5,
-                // because the Raspberry Pi 5 uses an entirely different GPIO controller (RP1)
-                var chips = LibGpiodDriver.GetAvailableChips();
-                // The RP1 chip reports 54 lines
-                GpioChipInfo? selectedChip = chips.FirstOrDefault(x => x.NumLines == 54);
-                if (selectedChip is null)
+                // Raspberry Pi 5 uses an entirely different GPIO controller (RP1) which reports 54 lines.
+                // Try V1 (libgpiod.so.2) first, then V2 (libgpiod.so.3) for compatibility
+                // with different Raspberry Pi OS versions.
+                if (GpioDriver.TryCreate(() => CreatePi5Driver(LibGpiodDriver.GetAvailableChips(), id => new LibGpiodDriver(id)), out GpioDriver? pi5Driver))
                 {
-                    throw new NotSupportedException("Couldn't find the default GPIO chip. You might need to create the LibGpiodDriver explicitly");
+                    return pi5Driver;
                 }
 
-                return new LibGpiodDriver(selectedChip.Id);
+                if (GpioDriver.TryCreate(() => CreatePi5Driver(LibGpiodV2Driver.GetAvailableChips(), id => new LibGpiodV2Driver(id)), out pi5Driver))
+                {
+                    return pi5Driver;
+                }
+
+                throw new NotSupportedException("Couldn't find the default GPIO chip. You might need to create the LibGpiodDriver explicitly");
 
             default:
 
                 return UnixDriver.Create();
         }
     }
 
+    /// <summary>
+    /// Creates a libgpiod-based driver for the Raspberry Pi 5 RP1 chip (54 lines).
+    /// </summary>
+    /// <param name="chips">Available GPIO chips from a specific libgpiod version.</param>
+    /// <param name="driverFactory">Factory to create the driver for the selected chip.</param>
+    /// <returns>A GPIO driver for the RP1 chip.</returns>
+    /// <exception cref="PlatformNotSupportedException">The RP1 chip was not found.</exception>
+    private static GpioDriver CreatePi5Driver(IList<GpioChipInfo> chips, Func<int, GpioDriver> driverFactory)
+    {
+        var selectedChip = chips.FirstOrDefault(x => x.NumLines == 54);
+        if (selectedChip is null)
+        {
+            throw new PlatformNotSupportedException("Couldn't find the RP1 GPIO chip");
+        }
+
+        return driverFactory(selectedChip.Id);
+    }
+
     /// <summary>
     /// Attempt to get the best applicable driver for the board the program is executing on.
     /// </summary>

src/System.Device.Gpio/System/Device/Gpio/RaspberryBoardInfo.cs

@@ -172,7 +172,7 @@ public Model BoardModel
         0x3111 or 0x3112 or 0x3114 or 0x3115 => Model.RaspberryPi4,
         0x3140 or 0x3141 => Model.RaspberryPiComputeModule4,
         0x3130 or 0x3131 => Model.RaspberryPi400,
-        0x4170 => Model.RaspberryPi5,
+        0x4170 or 0x4171 => Model.RaspberryPi5,
         _ => Model.Unknown,
     };