ALSA: usb-audio: add mono main switch to Presonus S1824c

[ Upstream commit 659169c4eb ]

The 1824c does not have the A/B switch that the 1810c has,
but instead it has a mono main switch that sums the two
main output channels to mono.

Signed-off-by: Roy Vegard Ovesen <roy.vegard.ovesen@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Stable-dep-of: 75cdae446d ("ALSA: usb-audio: don't log messages meant for 1810c when initializing 1824c")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Roy Vegard Ovesen 2025-09-27 17:27:30 +02:00 • committed by Greg Kroah-Hartman
commit dc6aa30812