AD7266_DECLARE_DIFF_CHANNELS_FIXED 276 drivers/iio/adc/ad7266.c static AD7266_DECLARE_DIFF_CHANNELS_FIXED(s, 's'); AD7266_DECLARE_DIFF_CHANNELS_FIXED 277 drivers/iio/adc/ad7266.c static AD7266_DECLARE_DIFF_CHANNELS_FIXED(u, 'u');