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| author | John Ernberg <john.ernberg@actia.se> | 2021-03-03 18:14:39 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-17 17:06:26 +0100 |
| commit | d77540ada71b77f1613fe37e3fb8267eca3897a5 (patch) | |
| tree | 346383450bffd9b8d16cf47ac04235fb395d9ed6 /sound | |
| parent | d291b2594f8503b07db7b67de1fc8d13e39db384 (diff) | |
| download | linux-stable-d77540ada71b77f1613fe37e3fb8267eca3897a5.tar.gz linux-stable-d77540ada71b77f1613fe37e3fb8267eca3897a5.tar.bz2 linux-stable-d77540ada71b77f1613fe37e3fb8267eca3897a5.zip | |
ALSA: usb: Add Plantronics C320-M USB ctrl msg delay quirk
commit fc7c5c208eb7bc2df3a9f4234f14eca250001cb6 upstream.
The microphone in the Plantronics C320-M headset will randomly
fail to initialize properly, at least when using Microsoft Teams.
Introducing a 20ms delay on the control messages appears to
resolve the issue.
Link: https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/issues/1065
Tested-by: Andreas Kempe <kempe@lysator.liu.se>
Signed-off-by: John Ernberg <john.ernberg@actia.se>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210303181405.39835-1-john.ernberg@actia.se
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/usb/quirks.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index f82c2ab809c1..d280978564e8 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1672,6 +1672,14 @@ void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe, && (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) msleep(20); + /* + * Plantronics C320-M needs a delay to avoid random + * microhpone failures. + */ + if (chip->usb_id == USB_ID(0x047f, 0xc025) && + (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) + msleep(20); + /* Zoom R16/24, many Logitech(at least H650e/H570e/BCC950), * Jabra 550a, Kingston HyperX needs a tiny delay here, * otherwise requests like get/set frequency return |