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From: Lars-Peter Clausen <>
To: Takashi Iwai <>
Cc:, Lars-Peter Clausen <>
Subject: [PATCH] ALSA: usb-audio: Add mute TLV for playback volumes on RODE NT-USB
Date: Fri, 11 Mar 2022 21:14:00 +0100	[thread overview]
Message-ID: <> (raw)

For the RODE NT-USB the lowest Playback mixer volume setting mutes the
audio output. But it is not reported as such causing e.g. PulseAudio to
accidentally mute the device when selecting a low volume.

Fix this by applying the existing quirk for this kind of issue when the
device is detected.

Signed-off-by: Lars-Peter Clausen <>
 sound/usb/mixer_quirks.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index e447ddd6854c..d35cf54cab33 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -3360,9 +3360,10 @@ void snd_usb_mixer_fu_apply_quirk(struct usb_mixer_interface *mixer,
 		if (unitid == 7 && cval->control == UAC_FU_VOLUME)
 			snd_dragonfly_quirk_db_scale(mixer, cval, kctl);
-	/* lowest playback value is muted on C-Media devices */
-	case USB_ID(0x0d8c, 0x000c):
-	case USB_ID(0x0d8c, 0x0014):
+	/* lowest playback value is muted on some devices */
+	case USB_ID(0x0d8c, 0x000c): /* C-Media */
+	case USB_ID(0x0d8c, 0x0014): /* C-Media */
+	case USB_ID(0x19f7, 0x0003): /* RODE NT-USB */
 		if (strstr(kctl->, "Playback"))
 			cval->min_mute = 1;

             reply	other threads:[~2022-03-11 20:16 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-11 20:14 Lars-Peter Clausen [this message]
2022-03-12  7:51 ` [PATCH] ALSA: usb-audio: Add mute TLV for playback volumes on RODE NT-USB Takashi Iwai

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