[PATCH] ALSA: usb-audio: Add MIN_MUTE quirk for Creative Sound Blaster Play! 3

From: Chad Talbott

Date: Tue Aug 18 2026 - 20:33:07 EST


The Creative Sound Blaster Play! 3 (041e:324d) exposes a Feature Unit
volume control with a range of -44.00 dB .. 0.00 dB over raw values
0..88, but raw value 0 is in fact a hard mute rather than -44.00 dB.

Tested on hardware.

Signed-off-by: Chad Talbott <chad.talbott@xxxxxxxxx>
---
sound/usb/quirks.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 4d2957e..6f1538e 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -2219,6 +2219,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
QUIRK_FLAG_MIXER_GET_CUR_BROKEN),
DEVICE_FLG(0x041e, 0x3000, /* Creative SB Extigy */
QUIRK_FLAG_IGNORE_CTL_ERROR),
+ DEVICE_FLG(0x041e, 0x324d, /* Creative Sound Blaster Play! 3 */
+ QUIRK_FLAG_MIXER_PLAYBACK_MIN_MUTE),
DEVICE_FLG(0x041e, 0x4080, /* Creative Live Cam VF0610 */
QUIRK_FLAG_GET_SAMPLE_RATE),
DEVICE_FLG(0x045e, 0x083c, /* MS USB Link headset */
--
2.54.0