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SubjectRe: [PATCH] ALSA: usb: mixer: volume quirk for ESS Technology Asus USB DAC
On Tue, 26 May 2020 08:26:13 +0200,
Chris Chiu wrote:
>
> The Asus USB DAC is a USB type-C audio dongle for connecting to
> the headset and headphone. The volume minimum value -23040 which
> is 0xa600 in hexadecimal with the resolution value 1 indicates
> this should be endianness issue caused by the firmware bug. Add
> a volume quirk to fix the volume control problem.
>
> Also fixes this warning:
> Warning! Unlikely big volume range (=23040), cval->res is probably wrong.
> [5] FU [Headset Capture Volume] ch = 1, val = -23040/0/1
> Warning! Unlikely big volume range (=23040), cval->res is probably wrong.
> [7] FU [Headset Playback Volume] ch = 1, val = -23040/0/1
>
> Signed-off-by: Chris Chiu <chiu@endlessm.com>

Applied with Cc to stable now. Thanks.


Takashi

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