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From: Chad Talbott <chad.talbott@gmail.com>
To: Takashi Iwai <tiwai@suse.com>, Jaroslav Kysela <perex@perex.cz>
Cc: linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org,
	Chad Talbott <chad.talbott@gmail.com>
Subject: [PATCH] ALSA: usb-audio: Add MIN_MUTE quirk for Creative Sound Blaster Play! 3
Date: Tue, 18 Aug 2026 14:32:37 -1000	[thread overview]
Message-ID: <20260819003237.452807-1-chad.talbott@gmail.com> (raw)

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@gmail.com>
---
 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


                 reply	other threads:[~2026-08-19  0:32 UTC|newest]

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