Dear Graham:
I am sorry, E1820 and E3276 cannot support the NDISDUP feature through
the PCUI port (AT port).
In fact, the Huawei data card device can not support the NDISDUP feature
through the PCUI port, unless it can expose the standard ECM
port(bInterfaceClass==0x02, bInterfaceSubClass==0x06, bInterfaceProtocol==0x00).
So please don't add the additional flags in the .rules, such as:
SUBSYSTEMS=="usb", ATTRS{bInterfaceClass}=="02",
ATTRS{bInterfaceSubClass}=="06",ATTRS{bInterfaceProtocol}=="ff",
ENV{ID_MM_HUAWEI_NDISDUP_SUPPORTED}="1"
It is not allowed.
Hope this can help you.
Thank you very much.
Best Regards,
Franko Fang
-----邮件原件-----
发件人: networkmanager-list [mailto:[email protected]] 代表
Graham Inggs
发送时间: 2013年6月4日 5:32
收件人: [email protected]
主题: [MM] Huawei E1820 and NDISDUP
My Huawei E1820 works fine with ModemManager in PPP mode.
I tried to get it to work with NDISDUP. I added the following lines to
plugins/huawei/77-mm-huawei-net-port-types.rules:
# Huawei E1820 firmware 11.831.03.00.00
SUBSYSTEMS=="usb", ATTRS{bInterfaceClass}=="02",
ATTRS{bInterfaceSubClass}=="06",ATTRS{bInterfaceProtocol}=="ff",
ENV{ID_MM_HUAWEI_NDISDUP_SUPPORTED}="1"
ModemManager was then able to connect using the AT^NDISDUP command.
I received an IP address and DNS settings, but I didn't seem to be getting any
traffic over the connection.
I noticed the following line in the output of dmesg:
[13317.359566] cdc_ether 2-5:1.1 wwan0: CDC: unexpected notification 01!
I searched for this error and came across the following post:
http://linux.derkeiler.com/Newsgroups/comp.os.linux.hardware/2011-09/msg00042.html
Sure enough, changing the MAC address of wwan0 to 00:01:02:03:04:05 solved the
problem!
I am using an Ubuntu 3.8 kernel. The modem works fine with AT^NDISDUP in
Windows.
Is this a problem with the cdc_ether driver, or something that could be fixed
in ModemManager?
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