Hi Oliver, I've been able to reproduce the command ring full issue with a USB headset that NAKs a lot. I should be able to look further into this issue now that I can reproduce it. No resolution yet, but I thought I would let you know I haven't dropped this bug report. :) Sarah Sharp -- 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