Win8.1 HID Device - returning NULL (HID Card Reader) RRS feed

  • Question

  • Similar to: http://social.msdn.microsoft.com/Forums/windowsdesktop/en-US/2cb65387-aad8-444d-a462-c44f3111a877/action?threadDisplayName=win81-hid-device-returning-null

    I'm trying to access an HID Device for OCR and Mag Stripe reading, the Desko mini MPR.  It's venpid is 0x0744 0x001D and it has three interfaces, [usage page usage id] 0x0001 0x0002, 0x0001 0x0006, and 0xFFA0 0x0001.  

    Like the linked issue, FindAllAsync returns a DeviceInformation, HidDevice.FromIdAsync returns null, and DeviceAccessInformation.CurrentStatus throws ElementNotFound.

    I understand usage page 0x0001 is blocked but I expect 0xFFA0 to get access.  What can I do to access this device?  Custom UMDF?  Brokered Components?  Get a new device - how do I know ahead of time it's compatible?

    Thank you,

    Greg Gorman

    Wednesday, June 11, 2014 5:10 PM

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  • I have same issue? Answering the question is appreciated.
    Friday, August 22, 2014 4:58 PM