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123627ad03
As mentioned and discussed in [1] extend_name should not be used for full channel labels (and most drivers seem to only use it to express a short type of a channel) as this affects sysfs filenames, while the label name is supposed to be extracted from the *_label sysfs file instead. This appears to have been unclear to some drivers as extend_name is also used when read_label is unset, achieving an initial goal of providing sensible names in *_label sysfs files without noticing that sysfs filenames are (negatively and likely unintentionally) affected as well. Point readers of iio_chan_spec::extend_name to iio_info::read_label by mentioning deprecation and side-effects of this field. [1]: https://lore.kernel.org/linux-arm-msm/20221221223432.si2aasbleiicayfl@SoMainline.org/ Suggested-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org> Link: https://lore.kernel.org/r/20230502-iio-adc-propagate-fw-node-label-v3-1-6be5db6e6b5a@somainline.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.