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Ruslan Bilovol 02de698ca8 usb: gadget: u_audio: add bi-directional volume and mute support
USB Audio Class 1/2 have ability to change device's
volume and mute by USB Host through class-specific control
requests. Device also can notify Host about volume/mute
change on its side through optional interrupt endpoint.

This patch adds Volume and Mute ALSA controls which can be
used by user to send and receive notifications to/from
the USB Host about Volume and Mute change.

These params come from f_uac* so volume and mute controls
will be created only if the function support and enable
each explicitly

Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com>
Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Link: https://lore.kernel.org/r/20210712125529.76070-3-pavel.hofman@ivitera.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-21 10:10:11 +02:00
arch arm64: dts: qcom: sc7280: Add USB nodes for IDP board 2021-07-21 10:04:56 +02:00
block
certs
crypto
Documentation dt-bindings: usb: generic-ohci: Document dr_mode property 2021-07-21 10:09:21 +02:00
drivers usb: gadget: u_audio: add bi-directional volume and mute support 2021-07-21 10:10:11 +02:00
fs
include usb: audio-v2: add ability to define feature unit descriptor 2021-07-21 10:10:11 +02:00
init
ipc
kernel Two fixes: 2021-07-11 11:17:57 -07:00
lib
LICENSES
mm mm/rmap: try_to_migrate() skip zone_device !device_private 2021-07-11 15:05:15 -07:00
net
samples
scripts
security
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tools
usr
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Makefile Linux 5.14-rc1 2021-07-11 15:07:40 -07:00
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 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.