Hi Zengtao, You email not received by linux-usb@xxxxxxxxxxxxxxx. I suspect it rejected due to your email format have some issues, violate linux-usb@xxxxxxxxxxxxxxx rules. I think you received email from linux-usb similar to this: <linux-usb@xxxxxxxxxxxxxxx>: host vger.kernel.org[209.132.180.67] said: 550 5.7.1 Content-Policy reject msg: Your message is highly unlikely to be accepted here BF:<H 0>; S1751783AbeCPIS1 (in reply to end of DATA command) Kindly request you to correct your email and resend. I will reply you as soon as will be received by linux-usb and will be seen archive. It's important that our communication archived. Thanks, Minas -- 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