mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-05-19 10:31:31 -04:00
5ce2aa520d
Enable USB audio offloading which allows to play audio via a USB-C headset with lower power consumption and enabling some other features. This can be used like the following: $ amixer -c0 cset name='USB_RX Audio Mixer MultiMedia1' On $ aplay --device=plughw:0,0 test.wav Compared to regular playback to the USB sound card no xhci-hcd interrupts appear during playback, instead the ADSP will be handling the USB transfers. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Luca Weiss <luca.weiss@fairphone.com> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250501-fp4-usb-audio-offload-v2-5-30f4596281cd@fairphone.com Signed-off-by: Bjorn Andersson <andersson@kernel.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.