On Sat, 3 Mar 2012, Alan Stern wrote: > Subsequent tests probably behaved exactly the same, except that the > endpoint data toggle values were not synchronized. I forgot to mention... The toggles _should_ have been synchronized, since each test is preceded by a Set-Interface request. The fact that they aren't indicates a bug in your UDC driver; each time an endpoint is newly enabled, its data toggle should be set back to 0. Alan Stern -- 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