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authorJohn Ernberg <john.ernberg@actia.se>2021-03-03 21:14:39 +0300
committerTakashi Iwai <tiwai@suse.de>2021-03-03 22:19:23 +0300
commitfc7c5c208eb7bc2df3a9f4234f14eca250001cb6 (patch)
tree6356bbb9dfbd61ce25dac58eeda04d5fedfd4a71 /sound
parent26af17722a07597d3e556eda92c6fce8d528bc9f (diff)
downloadlinux-fc7c5c208eb7bc2df3a9f4234f14eca250001cb6.tar.xz
ALSA: usb: Add Plantronics C320-M USB ctrl msg delay quirk
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>
Diffstat (limited to 'sound')
-rw-r--r--sound/usb/quirks.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 737b2729c0d3..0864692d8a7b 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1670,6 +1670,14 @@ 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