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Thread: USB device monitor

  1. #1
    Constant Bitrate
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    USB device monitor

    There was a recent discussion (which I can't find now) about the effect of plugging a USB 1.0 device into a 2.0 hub. Basically the question was whether or not doing so slowed all the devices to 1.0 speed.

    Is there any software that allows you to monitor a USB port/device? Just something simple (read free) that will let you know what speed it is operating at?

    Thanks...Paul

  2. #2
    Constant Bitrate
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    So was it a dumb question, or does no-one know?

  3. #3
    FLAC sama's Avatar
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    usually if you plug a usb 2 device into a usb 1 port, it will tell you that you've done that.

    sticking a usb 1 onto a usb 2 should not slow down the rest of the devices. the way I understand it is that a device checks to see if the bus is busy and will try to post something down the bus when it's quite. if it gets a reponse then it carries on (again, checking the bus each time it sends a packet). the speed that this happens is so fast that eventually everything gets communicated.

    having more devices on there may slow thigns a little however. not to a great degre usually, it depends what you're doing with the bus. If 128 hard drives are all trying to transmit down that bus, then there would be collisions left right and center.

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