For Kinects with 0000000000000000 Serial No - use Audio Serial as a fallback?

[ofTheo]

This might be a good solution for K4W and 1473 Kinects.

The audio device serial should be unique and serve as a good replacement for the camera serial for the purpose of distinguishing devices.

I think we won't even need to flash firmware to get that info.

[piedar]

I never found a way to reliably differentiate two Kinects on different ports of the same bus. Without knowing that, you can't say for sure which Camera goes with which Audio.

You could assume that the first Camera on some bus goes with the first Audio and so on. This would work in most situations, but would be unreliable if multiple Kinects are plugged into the same bus in quick succession.

[ofTheo]

Ah yes, I noticed this as well when I was working on the motor stuff.

I guess the proper way would be to mimic what the sdk does and get the serial no via some special call.

On Feb 11, 2014, at 11:28 PM, Benn Snyder notifications@github.com wrote:

I never found a way to reliably differentiate two Kinects on different ports of the same bus. Without knowing that, you can't say for sure which Camera goes with which Audio.

You could assume that the first Camera on some bus goes with the first Audio and so on. This would work in most situations, but would be unreliable if multiple Kinects are plugged into the same bus in quick succession.

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[zarvox]

Actually, this may be possible using newer libusb features. All of the Kinects have an internal USB hub, so to match subdevices within a single physical package, you might be able to simply check if their parent device is the same 4-port hub.

http://libusb.sourceforge.net/api-1.0/group__dev.html#ga97bb4dfff6bbb897ed9dfd6fa1a1deed

Note that I haven't actually tried this yet, but it seems like it might be a good way to cleanly group subdevices.

[nguyenkools]

@ofTheo I have a kinect model 1473, and i have a problem : " Xbox Nui motor is not detected and serial number of camera is always 0000000000". Can you show me how to solve this problem.? i wanna my laptop detect it with other serial number (different from 000000000) .
i'm working with openframeworks and libfreenect on windows 7.
thank you for help me!