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I am working on USB Connectivity between android 2.1 Host and Windows Mobiles 6.1 device...When I connect the windows mobile device to android host through USB (in RNDIS Mode), It ...
  1. 06-01-2011 #1
    Ganeshde
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    'eth1' instead of 'usb0'

    I am working on USB Connectivity between android 2.1 Host and Windows Mobiles 6.1 device...When I connect the windows mobile device to android host through USB (in RNDIS Mode), It is appearing as 'eth1' interface instead of 'usb0' interface.
    Why 'eth1' instead of 'usb0' ?
    Does behaviour of 'eth1' is same as 'usb0'?

    Please provide me some help...
    Thanks in advance

    Regards,
    Ganesh
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  2. 06-01-2011 #2
    rrl
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    In RNDIS mode, the device is recognized as a network device.
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  3. 06-01-2011 #3
    rrl
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    Apparently, I need 15 posts to post a link, but a quick google on RNDIS behavior will help you with the behavior
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  4. 06-01-2011 #4
    Ganeshde
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    Re: 'eth1' instead of 'usb0'

    Sorry...I didn't give much info on what i have to do...

    Case 1: I connected my Samsung Galaxy I7500 phone (android phone) to my Host (android) through USB Cable. It was in ECM Mode.It is detecting as 'usb0' device.

    Case 2: I connected Windows Mobile to my Host(android) through USB Cable.It was in RNDIS Mode.It is detecting as 'eth1' device.

    Being both phones connected through USB Cable, Why windows phone is detecting as 'eth1' device.

    As u have said, It is recognising as network device. But 'usb0' is also network device. So why the difference comes?

    [ECM and RNDIS are one and the same.]

    Please help me...

    Regards,
    Ganesh
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  5. 06-01-2011 #5
    rrl
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    The Remote Network Driver Interface Specification (RNDIS) is a Microsoft proprietary protocol used mostly on top of USB. It provides a virtual Ethernet link to most versions of the Windows operating system.
    from the wiki.

    Also

    These issues complicate third-party implementations.
    The USB Implementers Forum (USB-IF) defines at least three non-proprietary USB Communications Device Class (CDC) protocols with comparable "virtual Ethernet" functionality; one of them (CDC-ECM) predates RNDIS and is widely used for interoperability with non-Microsoft operating systems, but it has no native Windows support.
    from the wiki.
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  6. 06-01-2011 #6
    Ganeshde
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    RE:'eth1' instead of 'usb0'

    Thank You for your support.
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  7. 06-01-2011 #7
    rrl
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    No problem.
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