Hi Rhyland, On 27/06/16 19:11, Rhyland Klein wrote: > Jonathan, can you confirm replacing usleep_range(100, 200) with udelay(2) works for you? Yes for me, using a udelay(2) does seem to work. I have made sure that a usb device is still detected on the Jetson TX1. However, I am not sure the best way to test this thoroughly. If we do make this change it would be good to propagate downstream as well to get wider testing. Cheers Jon -- nvpublic -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html