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130c4dcbe8
The f_uvc code includes an interrupt endpoint against the VideoControl interface. According to section 2.4.2 of the UVC specification however this endpoint is optional in at least some cases: "This endpoint is optional, but may be mandatory under certain conditions" The conditions enumerated are whether... 1. The device supports hardware triggers 2. The device implements any AutoUpdate controls 3. The device implements any Asynchronous controls As all of those things are implementation dependent, this endpoint might be unnecessary for some users. Further to that it is unusable in the current implementation as there is no mechanism within the UVC gadget driver that allows data to be sent over that endpoint. Disable the interrupt endpoint by default, but check whether the user has asked for it to be enabled in configfs and continue to generate it if so. Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com> Link: https://lore.kernel.org/r/20230130105045.120886-4-dan.scally@ideasonboard.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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 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.