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b4e5646178
We regularly get dmesg error reports of: [ 18.184066] hdmi-audio-codec hdmi-audio-codec.3.auto: ASoC: error at snd_soc_dai_startup on i2s-hifi: -19 [ 18.184098] MAI: soc_pcm_open() failed (-19) These are generated for any disconnected hdmi interface when pulseaudio attempts to open the associated ALSA device (numerous times). Each open generates a kernel error message, generating general log spam. The error messages all come from _soc_pcm_ret in sound/soc/soc-pcm.c#L39 which suggests returning ENOTSUPP, rather that ENODEV will be quiet. And indeed it is. Signed-off-by: Dom Cobley <popcornmix@gmail.com> Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240621152055.4180873-5-dave.stevenson@raspberrypi.com Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> |
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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.