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.
Resending. Seems that there is a difference between git diff/commit versions 2.7.4 and 2.14.3.
I had to insert a line break with 2.4.13 to align properly(hopefully).
Signed-off-by: Lassi Ylikojola <lassi.ylikojola@xxxxxxxxx>
---
sound/usb/pcm.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index b9c9a19f9588..116a6ccc5b31 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -357,6 +357,16 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
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;
+
+ alts = &iface->altsetting[1];
+ goto add_sync_ep;
+
}
if (attr == USB_ENDPOINT_SYNC_ASYNC &&
--
2.14.3
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