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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>
This commit is contained in:
Macpaul Lin 2020-06-23 19:03:23 +08:00 committed by Takashi Iwai
parent 73094608b8
commit a32a1fc998
1 changed files with 8 additions and 0 deletions
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8
sound/usb/quirks.c
View File

@ -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);
}
/*