MBIM：连接前暴露NIC [英] MBIM: Exposing NIC before connecting

问题描述

我们正在调整我们的移动宽带芯片组到Windows 8.1 MBIM驱动程序。对于开发和调试，我们需要能够在实际连接到网络之前与设备进行通信。

作为类比，当我们不使用MBIM时，我们暴露了RNDIS +虚拟COM复合接口。插入设备后，实际上会在实际发送AT命令连接到网络之前显示设备的NIC。此时我们可以与设备通信
以查看设备中发生了什么（例如通过telnet）。

任何人都可以建议启用此类功能的方法吗？ / p>

例如，一个选项是发送MBIM命令告诉设备将自身重新暴露为RNDIS设备。 （我想这可以通过带有MBIM API的Windows应用程序来完成，对吗？）

或许我们可以发送命令只是人工连接到网络，然后我们就可以访问了没有实际连接到网卡。

我很高兴听到有关如何解决这个问题的任何其他实用和创意的想法。显然，越简单越好。

谢谢，

Ori

解决方案

设备仅通过USB连接。没有真正的串行端口，但是在我们的非MBIM模式下，我们可以暴露虚拟COM端口。

调试打印是不够的。我们需要像暴露RNDIS时那样与设备进行通信（即使未连接到移动网络时NIC也可见），在这种情况下我们可以打开到我们设备的telnet会话。

谢谢。

Hi,

We are adapting our mobile broadband chipset to the Windows 8.1 MBIM driver. For development and debugging, we need the ability to communicate with the device before actually connecting with it to the network.

As an analogy, when we don't use MBIM, we expose an RNDIS + Virtual COM composite interface. When the device is plugged in, this actually shows the device's NIC before actually sending AT commands to connect to the network. At this point we can communicate with the device to see what's going on in the device (through telnet for example).

Can anyone advise on methods to enable such functionality?

For example one option would be to send an MBIM command to tell the device to re-expose itself as an RNDIS device. (I suppose this would be done through a Windows app with MBIM API, correct?)

Or perhaps we could send a command to only artificially connect to the network, and then we would have access to the NIC without actual connection.

I'd appreciate to hear any other practical and creative ideas as to how to go about this. Obviously, the simpler the better.

Thanks,

Ori

解决方案

The device is connected via USB only. There is no real serial port, however in our non-MBIM mode, we can expose a virtual COM port.

Debug printing would not be enough. We need a possibility to communicate with the device like we could when it exposes RNDIS (NIC is visible even when not connected to mobile network), in which case we can open a telnet session to our device.

Thanks.

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