TL;DR I would recommend AGAINST using pyusb for HID use cases, if you are
on Linux instead use udev.
If you need to know the device that was used to read, I would create a
virtual device id if you really want to read directly from pyusb.. BUT I
would recommend against it.
I've not had to deal with this as I only use one device per USB host.
Take a look at:
* https://github.com/clach04/keyboard2mqtt - recommended approach, NOTE
doesn't have great user-facing documentation but the code should be easy to
read
* https://github.com/clach04/pyusb-keyboard-alike - hitting USB directly
On Tue, May 7, 2024 at 2:44 AM Charles Harris <cha...@sl...>
wrote:
> Hi
>
> There are many USB rfid devices to read tags. They all have identical
> vid and pid, and no device ID.
>
> When using hid into a spreadsheet some form of ID needs to be given for
> each device so that spreadsheet can manipulate data into areas etc.
>
> https://github.com/pyusb/pyusb/blob/master/docs/tutorial.rst
>
> This link refers to multiple usb with same pid vid. Also refers to
> options 'bus' and 'address' that could enable ID.
>
> Is there any tutorials or advice on simply how to use one or both of
> these to attach Device ID to the tag read being processed to the
> spreadsheet. Suffix or prefix or in a adjacent column.
>
> With the usb rfid reader connected to pc or spreadsheet, is it possible
> to access preferences or whatever on device and process a pyusb code to
> allow and set change on the usb device itself, for the bus or address
> from 'none' to a reference. Each device would be
> different.https://github.com/pyusb/pyusb/blob/master/docs/tutorial.rst
>
> A standard procedure to do this would be very useful . I am noobie to
> python etc and would need guidance.
>
> Thankyou
>
> Charles Harris
>
> NZ
>
>
>
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