dear linuxfoundation: I'm sorry, was not set format to text in before mails. Now resend it. modify reason: 1. Move device pid fffe from zte_ev.c back to option.c for our company. 2. Modify the parameter from 0x0003 to 0x0000. the problem may cause the device can not be close. these two points are in the patch, please submit it for me. thanks. Signed-off-by:lei liu<liu.lei78@xxxxxxxxxx> diff -u -r drivers-old/usb/serial/option.c drivers/usb/serial/option.c --- drivers-old/usb/serial/option.c 2014-03-24 12:45:42.000000000 +0800 +++ drivers/usb/serial/option.c 2014-03-26 15:13:02.232956251 +0800 @@ -1462,6 +1462,7 @@ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff92, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff93, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff94, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xfffe, 0xff, 0xff, 0xff) }, /* NOTE: most ZTE CDMA devices should be driven by zte_ev, not option */ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MC2718, 0xff, 0xff, 0xff), diff -u -r drivers-old/usb/serial/zte_ev.c drivers/usb/serial/zte_ev.c --- drivers-old/usb/serial/zte_ev.c 2014-03-24 12:45:42.000000000 +0800 +++ drivers/usb/serial/zte_ev.c 2014-03-26 16:08:52.916827643 +0800 @@ -258,12 +258,12 @@ /* send 8 cmd */ /* - * 16.0 CTL 21 22 03 00 00 00 00 00 + * 16.0 CTL 21 22 00 00 00 00 00 00 */ len = 0; result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x22, 0x21, - 0x0003, 0x0000, NULL, len, + 0x0000, 0x0000, NULL, len, USB_CTRL_GET_TIMEOUT); dev_dbg(dev, "result = %d\n", result); @@ -276,7 +276,6 @@ /* AC8710, AC8710T */ { USB_DEVICE_AND_INTERFACE_INFO(0x19d2, 0xffff, 0xff, 0xff, 0xff) }, /* AC8700 */ - { USB_DEVICE_AND_INTERFACE_INFO(0x19d2, 0xfffe, 0xff, 0xff, 0xff) }, /* MG880 */ { USB_DEVICE(0x19d2, 0xfffd) }, { USB_DEVICE(0x19d2, 0xfffc) }, thanks. lei liu��.n��������+%������w��{.n�����{���)��jg��������ݢj����G�������j:+v���w�m������w�������h�����٥