Hello again.

The USB device table in the driver I am working on has two entries for the particular vendor ID I am working with, one for each of two product IDs...0x0001 and 0x0002. The driver properly matches and can open the device with the 0x0002 product ID. However, running the same driver with the 0x0001 ups attached matches but fails to open.

This is the relevent output following a successful match and trying to open the device:

   0.002511     [D2] Checking device 2 of 5 (1234/0001)
   0.002564     [D1] Failed to open device (1234/0001), skipping: Access denied (insufficient permissions)

My expectation would be that either device, once matched, would be able to be opened and then further steps can be taken to confirm that the driver is communicating with an expected device.

I would appreciate any pointers toward something I may have missed.

Thank you,

Bill

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