Commit 48d6b917 authored by Jeremie Knuesel's avatar Jeremie Knuesel Committed by Takashi Iwai
Browse files

ALSA: usb-audio: Increase delay in MOTU M quirk 



Increase the quirk delay from 2 seconds to 4 seconds. This reflects a
change in the Windows driver in which the delay was increased to about
3.7 seconds. The larger delay fixes an issue where the device fails to
work unless it was powered up early during boot.

Also clarify in the quirk comment that the quirk is only applied to
older devices (USB ID 07fd:0008).

Signed-off-by: default avatarJeremie Knuesel <knuesel@gmail.com>
Suggested-by: default avatarAlexander Tsoy <alexander@tsoy.me>
Cc: <stable@vger.kernel.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=211975
Link: https://lore.kernel.org/r/20231217112243.33409-1-knuesel@gmail.com


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent ec1de5c2

sound/usb/quirks.c

+2 −2
Original line number Diff line number Diff line
@@ -1387,7 +1387,7 @@ static int snd_usb_motu_microbookii_boot_quirk(struct usb_device *dev) 


static int snd_usb_motu_m_series_boot_quirk(struct usb_device *dev)

{

	msleep(2000);

	msleep(4000);



	return 0;

}
@@ -1630,7 +1630,7 @@ int snd_usb_apply_boot_quirk_once(struct usb_device *dev, 
				  unsigned int id)

{

	switch (id) {

	case USB_ID(0x07fd, 0x0008): /* MOTU M Series */

	case USB_ID(0x07fd, 0x0008): /* MOTU M Series, 1st hardware version */

		return snd_usb_motu_m_series_boot_quirk(dev);

	}