5.15-stable review patch. If anyone has any objections, please let me know.
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From: WhaleChang whalechang@google.com
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 whalechang@google.com Link: https://lore.kernel.org/r/20231006044852.4181022-1-whalechang@google.com Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/usb/quirks.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1725,7 +1725,11 @@ void snd_usb_audioformat_attributes_quir /* 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; } }