Hi, these two patches are for fixing races at disconnection of USB audio devices. The first patch tries to close the race at open/close, and the next is for other PCM and mixer ops in usb-audio driver. It seems working as far as I've tested with Matthieu's test cases. thanks, Takashi -- 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