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Peter Ujfalusi 1aa3db5864 ASoC: SOF: ipc4: Support for sending payload along with LARGE_CONFIG_GET 
[ Upstream commit d96cb0b86d ]

There are message types when we would need to send a payload along with
the LARGE_CONFIG_GET message to provide information to the firmware on
what data is requested.
Such cases are the ALSA Kcontrol related messages when the high level
param_id tells only the type of the control, but the ID/index of the exact
control is specified in the payload area.

The caller must place the payload for TX before calling the set_get_data()
and this payload will be sent alongside with the message to the firmware.

The data area will be overwritten by the received data from firmware.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://patch.msgid.link/20251217143945.2667-7-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-03-04 07:21:00 -05:00
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README 

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.