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authorWhaleChang <whalechang@google.com>2023-10-06 07:48:49 +0300
committerTakashi Iwai <tiwai@suse.de>2023-10-06 12:11:18 +0300
commit6a83d6f3bb3c329a73e3483651fb77b78bac1878 (patch)
tree46d733e76bd4a58e8aa8927adbabf0c7a0c0096d /sound/usb
parent5d542b850d40cb08a38ad4bb2a944dbf1b7b0683 (diff)
downloadlinux-6a83d6f3bb3c329a73e3483651fb77b78bac1878.tar.xz
ALSA: usb-audio: Fix microphone sound on Opencomm2 Headset
When a Opencomm2 Headset is connected to a Bluetooth USB dongle, the audio playback functions properly, but the microphone does not work. In the dmesg logs, there are messages indicating that the init_pitch function fails when the capture process begins. The microphone only functions when the ep pitch control is not set. Toggling the pitch control off bypasses the init_piatch function and allows the microphone to work. Signed-off-by: WhaleChang <whalechang@google.com> Link: https://lore.kernel.org/r/20231006044852.4181022-1-whalechang@google.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
-rw-r--r--sound/usb/quirks.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 598659d761cc..d4bbef70d2f7 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1994,7 +1994,11 @@ void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip,
/* mic works only when ep packet size is set to wMaxPacketSize */
fp->attributes |= UAC_EP_CS_ATTR_FILL_MAX;
break;
-
+ case USB_ID(0x3511, 0x2b1e): /* Opencomm2 UC USB Bluetooth dongle */
+ /* mic works only when ep pitch control is not set */
+ if (stream == SNDRV_PCM_STREAM_CAPTURE)
+ fp->attributes &= ~UAC_EP_CS_ATTR_PITCH_CONTROL;
+ break;
}
}