Re: [pyusb-users] USB using HID RFID Reader

[chris c. <cl...@gm...>]

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
>
>
>
> _______________________________________________
> pyusb-users mailing list
> pyu...@li...
> https://lists.sourceforge.net/lists/listinfo/pyusb-users
>