From a01d68b6c666eb967201437b9c95496244cc6ae9 Mon Sep 17 00:00:00 2001 From: WhaleChang Date: Fri, 6 Oct 2023 12:48:49 +0800 Subject: [PATCH] ALSA: usb-audio: Fix microphone sound on Opencomm2 Headset commit 6a83d6f3bb3c329a73e3483651fb77b78bac1878 upstream. 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 Link: https://lore.kernel.org/r/20231006044852.4181022-1-whalechang@google.com Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- 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 8de572e774dd..6d87f58d1b00 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1725,7 +1725,11 @@ 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; } }