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| author | Cryolitia PukNgae <cryolitia@uniontech.com> | 2025-08-27 11:29:02 +0800 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2025-08-27 07:53:25 +0200 |
| commit | 2c3ca8cc55a3afc7a4fa99ed8f5f5d05dd2e65b3 (patch) | |
| tree | 102b059a630b85de9ba8662504c8a84dd07ea154 /sound/usb/usbaudio.h | |
| parent | 051b02b17a8b383ee033db211f90f24b91ac7006 (diff) | |
| download | linux-2c3ca8cc55a3afc7a4fa99ed8f5f5d05dd2e65b3.tar.gz linux-2c3ca8cc55a3afc7a4fa99ed8f5f5d05dd2e65b3.tar.bz2 linux-2c3ca8cc55a3afc7a4fa99ed8f5f5d05dd2e65b3.zip | |
ALSA: usb-audio: move mixer_quirks' min_mute into common quirk
We have found more and more devices that have the same problem, that
the mixer's minimum value is muted. Accroding to pipewire's MR[1]
and Arch Linux wiki[2], this should be a very common problem in USB
audio devices. Move the quirk into common quirk,as a preparation of
more devices' quirk's patch coming on the road[3].
1. https://gitlab.freedesktop.org/pipewire/pipewire/-/merge_requests/2514
2. https://wiki.archlinux.org/index.php?title=PipeWire&oldid=804138#No_sound_from_USB_DAC_until_30%_volume
3. On the road, in the physical sense. We have been buying ton of
these devices for testing the problem.
Tested-by: Guoli An <anguoli@uniontech.com>
Signed-off-by: Cryolitia PukNgae <cryolitia@uniontech.com>
Link: https://patch.msgid.link/20250827-sound-quirk-min-mute-v1-1-4717aa8a4f6a@uniontech.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/usbaudio.h')
| -rw-r--r-- | sound/usb/usbaudio.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h index 158ec053dc44..1ef4d39978df 100644 --- a/sound/usb/usbaudio.h +++ b/sound/usb/usbaudio.h @@ -196,6 +196,9 @@ extern bool snd_usb_skip_validation; * for the given endpoint. * QUIRK_FLAG_MIC_RES_16 and QUIRK_FLAG_MIC_RES_384 * Set the fixed resolution for Mic Capture Volume (mostly for webcams) + * QUIRK_FLAG_MIXER_MIN_MUTE + * Set minimum volume control value as mute for devices where the lowest + * playback value represents muted state instead of minimum audible volume */ #define QUIRK_FLAG_GET_SAMPLE_RATE (1U << 0) @@ -222,5 +225,6 @@ extern bool snd_usb_skip_validation; #define QUIRK_FLAG_FIXED_RATE (1U << 21) #define QUIRK_FLAG_MIC_RES_16 (1U << 22) #define QUIRK_FLAG_MIC_RES_384 (1U << 23) +#define QUIRK_FLAG_MIXER_MIN_MUTE (1U << 24) #endif /* __USBAUDIO_H */ |