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[ Upstream commit 2c3ca8cc55a3afc7a4fa99ed8f5f5d05dd2e65b3 ] We have found more and more devices that have the same problem, that the mixer's minimum value is muted. Accroding to pipewire's MR[1] and Arch Linux wiki[2], this should be a very common problem in USB audio devices. Move the quirk into common quirk,as a preparation of more devices' quirk's patch coming on the road[3]. 1. https://gitlab.freedesktop.org/pipewire/pipewire/-/merge_requests/2514 2. https://wiki.archlinux.org/index.php?title=PipeWire&oldid=804138#No_sound_from_USB_DAC_until_30%_volume 3. On the road, in the physical sense. We have been buying ton of these devices for testing the problem. Tested-by: Guoli An <anguoli@uniontech.com> Signed-off-by: Cryolitia PukNgae <cryolitia@uniontech.com> Link: https://patch.msgid.link/20250827-sound-quirk-min-mute-v1-1-4717aa8a4f6a@uniontech.com Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Sasha Levin <sashal@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 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.