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linux-stable/sound/usb/mixer_s1810c.h

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ALSA: usb-audio: Add support for Presonus Studio 1810c This patch adds support for Presonus Studio 1810c, a usb interface that's UAC2 compliant with a few quirks and a few extra hw-specific controls. I've tested all 3 altsettings and the added switch controls and they work as expected. More infos on the card: https://www.presonus.com/products/Studio-1810c Note that this work is based on packet inspection with usbmon. I just wanted to get this card to work for using it on our open-source radio station: https://github.com/UoC-Radio v2 address issues reported by Takashi: * Properly get/set enum type controls * Prevent race condition on switch_get/set * Various control naming changes * Various coding style fixes v3 improve readability of sample rate filtering and some other minor changes. Signed-off-by: Nick Kossifidis <mickflemm@gmail.com> Link: https://lore.kernel.org/r/5e47481a.1c69fb81.befb3.8dac@mx.google.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-02-15 01:23:35 +00:00
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Presonus Studio 1810c driver for ALSA
* Copyright (C) 2019 Nick Kossifidis <mickflemm@gmail.com>
*/
int snd_sc1810_init_mixer(struct usb_mixer_interface *mixer);