862 	const struct iio_chan_spec_ext_info *ext_info;  in iio_get_channel_ext_info_count()  local
865 	if (!chan->channel->ext_info)  in iio_get_channel_ext_info_count()
868 	for (ext_info = chan->channel->ext_info; ext_info->name; ext_info++)  in iio_get_channel_ext_info_count()
879 	const struct iio_chan_spec_ext_info *ext_info;  in iio_lookup_ext_info()  local
881 	if (!chan->channel->ext_info)  in iio_lookup_ext_info()
884 	for (ext_info = chan->channel->ext_info; ext_info->name; ++ext_info) {  in iio_lookup_ext_info()
885 		if (!strcmp(attr, ext_info->name))  in iio_lookup_ext_info()
886 			return ext_info;  in iio_lookup_ext_info()
895 	const struct iio_chan_spec_ext_info *ext_info;  in iio_read_channel_ext_info()  local
897 	ext_info = iio_lookup_ext_info(chan, attr);  in iio_read_channel_ext_info()
898 	if (!ext_info)  in iio_read_channel_ext_info()
901 	return ext_info->read(chan->indio_dev, ext_info->private,  in iio_read_channel_ext_info()
909 	const struct iio_chan_spec_ext_info *ext_info;  in iio_write_channel_ext_info()  local
911 	ext_info = iio_lookup_ext_info(chan, attr);  in iio_write_channel_ext_info()
912 	if (!ext_info)  in iio_write_channel_ext_info()
915 	return ext_info->write(chan->indio_dev, ext_info->private,  in iio_write_channel_ext_info()