Force USB Device Discovery

[wd8ivl]

Hello list, 

We've got three USB DIO boards (not NI) installed in a test system. 

Sometimes when the PC boots, it doesn't find all of them.  They are all on seperate USB PCI controller cards, so it's not a hub issue.

Is there a way to force the OS (Windows XP) to go out and try to discover new devices?

Using LV 8.2.

Thanks,

Mike

[Mark_SAI]

Hello,

The only suggestion I have found is to update your USB drivers to any later versions.

[Coq_Rouge]

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macaba wrote:

Hello,

The only suggestion I have found is to update your USB drivers to any later versions.

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It is one thing you can try. The devcon tool from microsoft. You may use it from Labview with the system exec.vi. Or start it after windows has booted up

http://ss64.com/nt/devcon.html.

[wd8ivl]

Thanks for the link...we'll try it.

Problem is that it only happens once in a while, and we can't seam to make it happen.

Mike