Hi Sarah I've thought of a way to eliminate UAS gadget (with its bugs :) ) from the equation: g_zero gadget also has 2 configurations, one for source/sink and one for loopback. So I tried the userspace-change-configuration on g_zero and it worked. Both for HS and SS connections. The only difference between the 2 tests is that there was no data transfers with g_zero prior to configuration change or that were interrupted by it. In order to be confident that the issue is fixed I would like to simulate the same behavior as with the UAS gadget. Meaning, initiate data transfer for g_zero and interrupt it in the middle with configuration change. The only problem is I'm not sure how to do that... Alan - perhaps you can guide me how to do that? Thanks, Tanya Brokhman --- Sent by an consultant of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html