Review findings

Author: pgrawehr

src/System.Device.Gpio/Interop/Unix/libgpiod/V1/Interop.libgpiod.cs

@@ -209,7 +209,7 @@ static LibgpiodV1()
         /// </summary>
         /// <returns>GPIO chip pointer handle or NULL if an error occurred.</returns>
         [DllImport(LibgpiodLibrary, SetLastError = true)]
-        internal static extern SafeChipHandle gpiod_chip_open_by_number(int number);
+        internal static extern IntPtr gpiod_chip_open_by_number(int number);
 
         /// <summary>
         /// Get the API version of the library as a human-readable string.

src/System.Device.Gpio/System/Device/Gpio/Drivers/Libgpiod/LibGpiodDriver.cs

@@ -78,7 +78,7 @@ public LibGpiodDriver(int gpioChip = 0)
         {
             _pinNumberLock = new object();
             _chipNumber = gpioChip;
-            _chip = LibgpiodV1.gpiod_chip_open_by_number(gpioChip);
+            _chip = new SafeChipHandle(LibgpiodV1.gpiod_chip_open_by_number(gpioChip));
             if (_chip == null || _chip.IsInvalid || _chip.IsClosed)
             {
                 throw ExceptionHelper.GetIOException(ExceptionResource.NoChipFound, Marshal.GetLastWin32Error());