PORTS Forum

Ports and Interfaces => USB => Topic started by: Golgo1972 on January 03, 2017, 09:37:59 pm

Title: Identifying many USB devices (holding same vid/pid) - How to read each one ?
Post by: Golgo1972 on January 03, 2017, 09:37:59 pm

If I have a usb hub/dock with N number of USB Vendor Specific class devices how do distinguish a read of the the files each has into a file system directory on Windows if they all have the same vid/pid or serial number? What can I key on that is a totally unique identifier for each device ? Each device is the same police body cam.

Thank you.

Title: Re: Identifying many USB devices (holding same vid/pid) - How to read each one ?
Post by: Jan Axelson on January 03, 2017, 09:51:30 pm

If you are asking how you can identify which physical device a handle, etc., belongs to, that is what serial numbers are for. Multiple devices should not have the same serial number.