Use the udev "uniq" attribute when generating the device GUID

[zvova7890]

I have two PS3 joysticks; I can use one without problems. But when I connect the second, I can't set up the second pad because puNES can't understand which one to pick due to identical GUIDs.

Adding a simple index to the GUID generator resolves the problem.

[punesemu]

Hi @zvova7890 and thanks for your contribution. I'll take a look at your patch over the weekend.

[zvova7890]

Using the udev attribute uniq and XORing it over 4-16 bytes of the GUID might be a better approach. This depends on the joystick binding policy. If we allow binding only to the exact joystick, regardless of the connection order, this approach could be more reliable.

[punesemu]

Obviously you are absolutely right, when I wrote the code I also took the uniq attribute into consideration but in the tests I did with the 3 controllers (all 3 of different brands) that I have, the attribute was always not valued and so I decided not to use it.

[zvova7890]

I updated to using the uniq attribute

[punesemu]

Sorry for the delay, but my SSD had abandoned me. I'm reinstalling my Gentoo and recovering my data.

[zvova7890]

😮

no worry. I hope you recover all your important data

[punesemu]

Many thx @zvova7890.