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On Lenovo platforms there is a limitation in the number of times an attribute can be saved. This is an architectural limitation and it limits the number of attributes that can be modified to 48. A solution for this is instead of the attribute being saved after every modification allow a user to bulk set the attributes and then trigger a final save. This allows unlimited attributes. This patch introduces a save_settings attribute that can be configured to either single or bulk mode by the user. Single mode is the default but customers who want to avoid the 48 attribute limit can enable bulk mode. Displaying the save_settings attribute will display the enabled mode. When in bulk mode writing 'save' to the save_settings attribute will trigger a save. Once this has been done a reboot is required before more attributes can be modified. Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca> Link: https://lore.kernel.org/r/20230919141530.4805-1-mpearson-lenovo@squebb.ca Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.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.