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6b41e64a5d
This is a code refactoring for abstracting the rawmidi access to the UMP's own helpers. It's a preliminary work for the later code refactoring of the UMP layer. Until now, we access to the rawmidi substream directly from the driver via rawmidi access helpers, but after this change, the driver is supposed to access via the newly introduced snd_ump_ops and receive/transmit via snd_ump_receive() and snd_ump_transmit() helpers. As of this commit, those are merely wrappers for the rawmidi substream, and no much function change is seen here. Reviewed-by: Jaroslav Kysela <perex@perex.cz> Link: https://lore.kernel.org/r/20230523075358.9672-14-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
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.