LTC2688_INPUT_A
ret = ltc2688_dac_code_read(st, chan->channel, LTC2688_INPUT_A,
LTC2688_INPUT_A, val);
LTC2688_CHAN_EXT_INFO("raw0", LTC2688_INPUT_A, IIO_SEPARATE,
LTC2688_CHAN_EXT_INFO("raw0", LTC2688_INPUT_A, IIO_SEPARATE,