On Tue, Nov 22, 2011 at 5:16 PM, <zheng.zhijian@xxxxxxxxxx> wrote: > This problem happend in a Embedded Linux System which is doing data > transmission with a USB 3G Modem. > When I power down the screen, the Linux Kernel send a lot of Suspend to > USB 3G Modem continually. > And finaly, I can not Resume the equipment. > > > Could anyone point out what happend as shown in the picture below? > Please paste the kernel log. If power down the screen, does the system will suspend? If it is, it is not strange your 3G device will receive the suspend, as root hub will suspend all hub and downstream devices. Besides, what do you mean "can no Resume the equipment"? Do you mean can not resume the your embedded board? If it is, first make sure it has already suspended, and not the system hang during the suspend. > > > > > -- > > > > -------------------------------------------------------- > ZTE Information Security Notice: The information contained in this mail is solely property of the sender's organization. This mail communication is confidential. Recipients named above are obligated to maintain secrecy and are not permitted to disclose the contents of this communication to others. > This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the originator of the message. Any views expressed in this message are those of the individual sender. > This message has been scanned for viruses and Spam by ZTE Anti-Spam system. > > -- > 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 > -- BR, Peter Chen -- 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
