From: Cryolitia PukNgae <cryolitia@uniontech.com>
Date: Wed, 3 Sep 2025 05:09:48 +0000 (+0800)
Subject: ALSA: usb-audio: apply quirk for MOONDROP Quark2
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=a73349c5dd27bc544b048e2e2c8ef6394f05b793;p=users%2Fhch%2Fmisc.git

ALSA: usb-audio: apply quirk for MOONDROP Quark2

It reports a MIN value -15360 for volume control, but will mute when
setting it less than -14208

Tested-by: Guoli An <anguoli@uniontech.com>
Signed-off-by: Cryolitia PukNgae <cryolitia@uniontech.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250903-sound-v1-4-d4ca777b8512@uniontech.com
---

diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 5fcf1117777d..34bcbfd8b54e 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -1182,6 +1182,13 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval,
 			cval->res = 1;
 		}
 		break;
+	case USB_ID(0x3302, 0x12db): /* MOONDROP Quark2 */
+		if (!strcmp(kctl->id.name, "PCM Playback Volume")) {
+			usb_audio_info(chip,
+				"set volume quirk for MOONDROP Quark2\n");
+			cval->min = -14208; /* Mute under it */
+		}
+		break;
 	}
 }