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ALSA: usb-audio: Fix microphone sound on Opencomm2 Headset
commit 6a83d6f3bb
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>
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1 changed files with 5 additions and 1 deletions
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@ -1725,7 +1725,11 @@ void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip,
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/* mic works only when ep packet size is set to wMaxPacketSize */
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fp->attributes |= UAC_EP_CS_ATTR_FILL_MAX;
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break;
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case USB_ID(0x3511, 0x2b1e): /* Opencomm2 UC USB Bluetooth dongle */
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/* mic works only when ep pitch control is not set */
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if (stream == SNDRV_PCM_STREAM_CAPTURE)
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fp->attributes &= ~UAC_EP_CS_ATTR_PITCH_CONTROL;
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break;
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}
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}
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