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ALSA: usb-audio: add volume quirks for MS LifeChat LX-3000

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ID 045e:070f Microsoft Corp. LifeChat LX-3000 Headset
has muted minimum Speaker Playback Volume, and 4 amixer steps were
observed to produce 1 actual volume step.

Apply min_mute quirk and correct res=48 -> 4*48.
Tested with the device.

Signed-off-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Pauli Virtanen 2025-10-15 22:47:10 +03:00 committed by Takashi Iwai
parent 28412b489b
commit 9af61fc914
2 changed files with 10 additions and 0 deletions
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8
sound/usb/mixer.c
View File

@ -1147,6 +1147,14 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval,
}
break;
case USB_ID(0x045e, 0x070f): /* MS LifeChat LX-3000 Headset */
if (!strcmp(kctl->id.name, "Speaker Playback Volume")) {
usb_audio_info(chip,
"set volume quirk for MS LifeChat LX-3000\n");
cval->res = 192;
}
break;
case USB_ID(0x0471, 0x0101):
case USB_ID(0x0471, 0x0104):
case USB_ID(0x0471, 0x0105):

2
sound/usb/quirks.c
View File

@ -2153,6 +2153,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
DEVICE_FLG(0x045e, 0x083c, /* MS USB Link headset */
QUIRK_FLAG_GET_SAMPLE_RATE | QUIRK_FLAG_CTL_MSG_DELAY |
QUIRK_FLAG_DISABLE_AUTOSUSPEND),
DEVICE_FLG(0x045e, 0x070f, /* MS LifeChat LX-3000 Headset */
QUIRK_FLAG_MIXER_PLAYBACK_MIN_MUTE),
DEVICE_FLG(0x046d, 0x0807, /* Logitech Webcam C500 */
QUIRK_FLAG_CTL_MSG_DELAY_1M | QUIRK_FLAG_MIC_RES_384),
DEVICE_FLG(0x046d, 0x0808, /* Logitech Webcam C600 */