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The USB abstractions target to support USB interface drivers. While internally the abstraction has to deal with the interface's parent USB device, there shouldn't be a need for users to deal with the parent USB device directly. Functions, such as for preparing and sending USB URBs, can be implemented for the usb::Interface structure directly. Whether this internal implementation has to deal with the parent USB device can remain transparent to USB interface drivers. Hence, keep the usb::Device structure private for now, in order to avoid confusion for users and to make it less likely to accidentally expose APIs with unnecessary indirections. Should we start supporting USB device drivers, or need it for any other reason we do not foresee yet, it should be trivial to make it public again. Signed-off-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250925190400.144699-2-dakr@kernel.org 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 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.