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For drivers or board files that set gpio_chip->names, the links to the GPIO attribute group created on sysfs export will be named after the line's name set in that array. For lines that are named using device properties, the names pointer of the gpio_chip struct is never assigned so they are exported as if they're not named. The ABI documentation does not mention the former behavior and given that the majority of modern systems use device-tree, ACPI or other way of passing GPIO names using device properties - bypassing gc->names - it's better to make the behavior consistent by always exporting lines as "gpioXYZ". Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20240930083029.17694-1-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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 reStructuredText 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.