public LibGpiodDriver()
{
SafeChipIteratorHandle iterator = null;
try
{
iterator = Interop.GetChipIterator();
if (iterator == null)
{
throw ExceptionHelper.GetIOException(ExceptionResource.NoChipIteratorFound, Marshal.GetLastWin32Error());
}
}
catch (DllNotFoundException)
{
throw ExceptionHelper.GetPlatformNotSupportedException(ExceptionResource.LibGpiodNotInstalled);
}
_chip = Interop.GetNextChipFromChipIterator(iterator);
if (_chip == null)
{
throw ExceptionHelper.GetIOException(ExceptionResource.NoChipFound, Marshal.GetLastWin32Error());
}
_pinNumberToSafeLineHandle = new Dictionary <int, SafeLineHandle>(PinCount);
}
public LibGpiodDriver()
{
SafeChipIteratorHandle iterator = Interop.GetChipIterator();
if (iterator == null)
{
throw ExceptionHelper.GetIOException(ExceptionResource.NoChipIteratorFound, Marshal.GetLastWin32Error());
}
_chip = Interop.GetNextChipFromChipIterator(iterator);
if (_chip == null)
{
throw ExceptionHelper.GetIOException(ExceptionResource.NoChipFound, Marshal.GetLastWin32Error());
}
// Freeing other chips opened
Interop.FreeChipIteratorNoCloseCurrentChip(iterator);
_pinNumberToSafeLineHandle = new Dictionary <int, SafeLineHandle>(PinCount);
}
internal static extern SafeChipHandle GetNextChipFromChipIterator(SafeChipIteratorHandle iter);
internal static extern void FreeChipIteratorNoCloseCurrentChip(SafeChipIteratorHandle iter);
internal static extern SafeChipHandle gpiod_chip_iter_next(SafeChipIteratorHandle iter);
internal static extern void gpiod_chip_iter_free_noclose(SafeChipIteratorHandle iter);
