void InitLibAndHandle() { FtResult result; if (_handle != IntPtr.Zero) { return; } LibMpsse.Init(); var num_channels = 0; var channels = LibMpsseI2C.I2C_GetNumChannels(out num_channels); CheckResult(channels); if (num_channels > 0) { for (var i = 0; i < num_channels; i++) { FtDeviceInfo cInfo; var channelInfoStatus = LibMpsseI2C.I2C_GetChannelInfo(i, out cInfo); CheckResult(channelInfoStatus); Debug.WriteLine($"Flags: {cInfo.Flags}"); Debug.WriteLine($"Type: {cInfo.Type}"); Debug.WriteLine($"ID: {cInfo.ID}"); Debug.WriteLine($"LocId: {cInfo.LocId}"); Debug.WriteLine($"SerialNumber: {cInfo.SerialNumber}"); Debug.WriteLine($"Description: {cInfo.Description}"); Debug.WriteLine($"ftHandle: {cInfo.ftHandle}"); } } result = LibMpsseI2C.I2C_OpenChannel(_i2cConfig.ChannelIndex, out _handle); CheckResult(result); if (_handle == IntPtr.Zero) { throw new I2CChannelNotConnectedException(FtResult.InvalidHandle); } result = LibMpsseI2C.I2C_InitChannel(_handle, ref _cfg); CheckResult(result); _currentGlobalConfig = _cfg; }