ALSA: scarlett2: Allow for interfaces without per-channel volume

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Currently-supported interfaces with a mixer have per-channel volume
controls, but this changes in Gen 4. Add a check so that the Playback
Volume and associated controls don't get created unless the
SCARLETT2_CONFIG_LINE_OUT_VOLUME config item is present.

Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Link: https://lore.kernel.org/r/30f68cb311e27f2cc1351cb846218f7248a90263.1703444932.git.g@b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Geoffrey D. Bennett 2023-12-25 06:00:05 +10:30 • committed by Takashi Iwai

parent c6b3e71e2c

commit 90d8fef837

1 changed files with 40 additions and 28 deletions

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sound/usb/mixer_scarlett2.c

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