From: WhaleChang <whalechang@xxxxxxxxxx> [ Upstream commit 6a83d6f3bb3c329a73e3483651fb77b78bac1878 ] 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@xxxxxxxxxx> Link: https://lore.kernel.org/r/20231006044852.4181022-1-whalechang@xxxxxxxxxx Signed-off-by: Takashi Iwai <tiwai@xxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- sound/usb/quirks.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 4667d543f7481..80ee3b54bfe9c 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1992,7 +1992,11 @@ 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; } } -- 2.40.1
