From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cryolitia PukNgae Date: Thu, 02 Apr 2026 13:36:57 +0800 Subject: [PATCH] ALSA: usb-audio: apply quirk for MOONDROP JU Jiu MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260402-syy-v1-1-068d3bc30ddc@linux.dev> X-B4-Tracking: v=1; b=H4sIAAAAAAAC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDIzMDEwMj3eLKSt00IMvcJDnRzNzCSAmosqAoNS2zAmxKdCyEX1yalJWaXAL SqlRbCwCXVPFBZwAAAA== X-Change-ID: 20260402-syy-f04074ca6782 To: Jaroslav Kysela , Takashi Iwai Cc: linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, zhanjun@uniontech.com, niecheng1@uniontech.com, kernel@uniontech.com, =?utf-8?q?=E8=83=A1=E8=BF=9E=E5=8B=A4?= , Kagura , stable@vger.kernel.org, Cryolitia PukNgae X-Mailer: b4 0.15.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1775108219; l=1249; i=cryolitia.pukngae@linux.dev; s=20260401; h=from:subject:message-id; bh=xZVGlTPTiBBef2iARx0bzLIZG1HD0uA8NNBbqan+D9U=; b=mN3VdwexnabeNtKme5CRAJUjMvNNN1boW1QiGM2+lyrdAETxPdhUbqOUPZwxKGaze+gHotoHZ NY8El/k505lBjtBAc29jTvff3lv6XwLH0SNoh7rBQtVFVtjk0ENHwwr X-Developer-Key: i=cryolitia.pukngae@linux.dev; a=ed25519; pk=kF6wBkp7j9167keuk8Q9RvPgMRPuHlJztbLy0vbJ3K0= X-Endpoint-Received: by B4 Relay for cryolitia.pukngae@linux.dev/20260401 with auth_id=712 List-Id: B4 Relay Submissions It(ID 31b2:0111 JU Jiu) reports a MIN value -12800 for volume control, but will mute when setting it less than -10880. Thanks to my girlfriend Kagura for reporting this issue. Cc: Kagura Cc: stable@vger.kernel.org Signed-off-by: Cryolitia PukNgae --- Btw, is it a good idea for turn the volume_control_quirks from switch-case to a table and sort it accroding to USB VID&PID? --- sound/usb/mixer.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index 69026cf54979..a25e8145af67 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -1204,6 +1204,13 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval, cval->min = -11264; /* Mute under it */ } break; + case USB_ID(0x31b2, 0x0111): /* MOONDROP JU Jiu */ + if (!strcmp(kctl->id.name, "PCM Playback Volume")) { + usb_audio_info(chip, + "set volume quirk for MOONDROP JU Jiu\n"); + cval->min = -10880; /* Mute under it */ + } + break; } } --- base-commit: 872c7433582a3570dd0c827967ba291450096bf0 change-id: 20260402-syy-f04074ca6782 Best regards, -- Cryolitia PukNgae