Commit 5e35dc03 authored Feb 09, 2018 by Lassi Ylikojola Committed by Takashi Iwai Feb 12, 2018

ALSA: usb-audio: add implicit fb quirk for Behringer UFX1204



Add quirk to ensure a sync endpoint is properly configured.
This patch is a fix for same symptoms on Behringer UFX1204 as patch
from Albertto Aquirre on Dec 8 2016 for Axe-Fx II.

Signed-off-by: Lassi Ylikojola <lassi.ylikojola@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

parent 1f8ade92

sound/usb/pcm.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -352,6 +352,15 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
		ep = 0x86;
		iface = usb_ifnum_to_if(dev, 2);

		if (!iface \|\| iface->num_altsetting == 0)
		return -EINVAL;

		alts = &iface->altsetting[1];
		goto add_sync_ep;
		case USB_ID(0x1397, 0x0002):
		ep = 0x81;
		iface = usb_ifnum_to_if(dev, 1);

		if (!iface \|\| iface->num_altsetting == 0)
		return -EINVAL;