mirror of https://gitee.com/openkylin/linux.git
04ff40a983
For controls marked write-only don't initialize the cache from the content of the DSP memory. We stil need the cache for any new data that is written to this control, and we need to return something for a read of the ALSA control because most user-side code assumes all ALSA controls are readable. The cache is already created zero- filled so the only change needed is to skip populating it from DSP memory if the control isn't readable. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org> |
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README
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.