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| author | Macpaul Lin <macpaul.lin@mediatek.com> | 2020-06-23 19:03:23 +0800 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-06-23 16:13:49 +0200 |
| commit | a32a1fc99807244d920d274adc46ba04b538cc8a (patch) | |
| tree | 85cef5cd2975fc7fcee667f8097b553bd595f610 /sound/usb | |
| parent | 73094608b8e214952444fb104651704c98a37aeb (diff) | |
| download | linux-a32a1fc99807244d920d274adc46ba04b538cc8a.tar.gz | |
ALSA: usb-audio: add quirk for Samsung USBC Headset (AKG)
We've found Samsung USBC Headset (AKG) (VID: 0x04e8, PID: 0xa051) need a tiny delay after each class compliant request. Otherwise the device might not be able to be recognized each times. Signed-off-by: Chihhao Chen <chihhao.chen@mediatek.com> Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/1592910203-24035-1-git-send-email-macpaul.lin@mediatek.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
| -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 54d4b4b5bd11..fca72730a802 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1674,6 +1674,14 @@ void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe, chip->usb_id == USB_ID(0x0951, 0x16ad)) && (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) usleep_range(1000, 2000); + + /* + * Samsung USBC Headset (AKG) need a tiny delay after each + * class compliant request. (Model number: AAM625R or AAM627R) + */ + if (chip->usb_id == USB_ID(0x04e8, 0xa051) && + (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) + usleep_range(5000, 6000); } /* |