--- a/sound/usb/format.c	2020-10-01 18:36:35.000000000 +0300
+++ b/sound/usb/format.c	2020-10-04 02:10:21.678685952 +0300
@@ -217,6 +217,21 @@
 			    (chip->usb_id == USB_ID(0x041e, 0x4064) ||
 			     chip->usb_id == USB_ID(0x041e, 0x4068)))
 				rate = 8000;
+			
+			// hack for "Jieli Technology USB PHY 2.0" webcam
+			if (chip->usb_id == USB_ID(0x1224, 0x2a25)) {
+				switch (rate) {
+				case 8000:
+					fp->datainterval += 4;
+					break;
+				case 16000:
+					fp->datainterval += 3;
+					break;
+				default:
+					fp->datainterval += 1;
+					break;
+				}
+			}
 
 			fp->rate_table[fp->nr_rates] = rate;
 			if (!fp->rate_min || rate < fp->rate_min)
--- a/sound/usb/endpoint.c	2020-10-01 18:36:35.000000000 +0300
+++ b/sound/usb/endpoint.c	2020-10-04 02:09:09.471978982 +0300
@@ -882,6 +882,8 @@
 	if (snd_usb_get_speed(ep->chip->dev) != USB_SPEED_FULL) {
 		packs_per_ms = 8 >> ep->datainterval;
 		max_packs_per_urb = MAX_PACKS_HS;
+		if (!packs_per_ms)
+			packs_per_ms = 1;
 	} else {
 		packs_per_ms = 1;
 		max_packs_per_urb = MAX_PACKS;
--- a/sound/usb/quirks.c	2020-10-01 18:36:35.000000000 +0300
+++ b/sound/usb/quirks.c	2020-10-04 02:14:04.532196519 +0300
@@ -1516,6 +1516,7 @@
 	case USB_ID(0x1901, 0x0191): /* GE B850V3 CP2114 audio interface */
 	case USB_ID(0x21b4, 0x0081): /* AudioQuest DragonFly */
 	case USB_ID(0x2912, 0x30c8): /* Audioengine D1 */
+	case USB_ID(0x1224, 0x2a25): /* Jieli Technology USB PHY 2.0 */
 		return true;
 	}