iio_backend_chan_disable
ret = iio_backend_chan_disable(st->back, i);
ret = iio_backend_chan_disable(st->back, c);
ret = iio_backend_chan_disable(st->back, c);
ret = iio_backend_chan_disable(st->back, c);
ret = iio_backend_chan_disable(st->back, c);
ret = iio_backend_chan_disable(st->back, chan);
EXPORT_SYMBOL_NS_GPL(iio_backend_chan_disable, "IIO_BACKEND");
int iio_backend_chan_disable(struct iio_backend *back, unsigned int chan);