On Sat, 2013-12-21 at 20:19 +0800, Yingchun Li wrote: > before I read the box, it seems > the ACM driver will read the box automaticly(I find that from the usb > sniffer). and there > is a lot of READ-NAK packet. > So could the box disable the automatic read by someway such as flow > control, and > until it ready for sending response? No. The driver needs to be ready for the general case. That includes devices giving out unsolicited data. That can happen at any time. Sorry Oliver -- 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
