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commit 486f6205c233da1baa309bde5f634eb1f8319a33 upstream. Many Poly/Plantronics headset families name the feature, input, and/or output units in a such a way to produce control names that are not recognized by user space. As such, the volume and mute events do not get routed to the headset's audio controls. As an example from a product family: The microphone mute control is named Headset Microphone Capture Switch and the headset volume control is named Headset Earphone Playback Volume The quirk fixes these to become Headset Capture Switch Headset Playback Volume Signed-off-by: Terry Junge <linuxhid@cosmicgizmosystems.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Cc: stable@vger.kernel.org Signed-off-by: Jiri Kosina <jkosina@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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 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.