Specific controllers for specific emulators - UDEV rules + indexes?

swd120

I want to have the same controller always assigned to the same input address, and I want to do this with 8bitdo bluetooth controllers. The reason being - I want specific types of controllers to be player1/player2 in specific emulators - Easiest way I can think to accomplish it is to have static index for each controller, and then I can assign those indexes in an emulators config.

ex:
NES30 #1 => js0
NES30 #2 => js1
NES30 Pro #1 => js2
NES 30 Pro #2 => js3

then in PSX/N64 retroarch.cfg to use Pro controllers instead:
input_player1_joypad_index = 2
input_player2_joypad_index = 3

However, I think I have a misunderstanding of how udev rules work for bluetooth devices. Here's what I've tried intially, but it doesnt seem to be working - the controllers just connect in whatever order. I assume my query is wrong? Is KERNEL=="js?" incorrect because its a bluetooth device?

KERNEL=="js?", ATTRS{address}=="8e:f0:24:f3:9e:f3", NAME="input/js0"
KERNEL=="js?", ATTRS{address}=="8e:f0:07:9a:9e:f3", NAME="input/js1"
KERNEL=="js?", ATTRS{address}=="69:09:07:41:66:07", NAME="input/js2"
KERNEL=="js?", ATTRS{address}=="69:09:f6:aC:66:07", NAME="input/js3"

Also - maybe udev rules is the wrong path to achieve what I want?

Any help appreciated!

meleu

@swd120 If you do this way I think you'll have problems when using non-libretro emulators.

Maybe you like to know it: http://github.com/meleu/RetroPie-joystick-selection

This have the inconvenience to re-run the joystick selection when you want to change the controllers. But at least it's more user-friendly than manual edit the retroarch.cfg.

mediamogul

@swd120

@meleu's controller selection utility is really the way to go. I've looked into doing what you want and have come up empty time and again. From what I did manage to find, it appears this was once an option at a system level a few years ago and was removed.

swd120

I have the joystick selection app already - but its still not really user friendly... (IE: The wife cant just pick up a controller and use it)

There has to be some way to achieve what I want - I'm totally fine if it only works for the lib-retro emulators for now. I can work on sorting out the other emulators afterwards...

meleu

@swd120 I intend to add this functionality in my joystick selection utility (define controllers based on the chosen core). But unfortunately I can't predict a release date... I'll let you know when it's ready.

swd120

@meleu Awesome - that's great to hear!

gogreenman

This option is EXACTLY what I'm looking for!!
I have even thought about rewiring a n64 remote to be recognized as a keyboard input so I can map the keys as I want.
I have seen someone suggest using multiple SD cards to switch out kinda like switching games but be switching complete pie set up with each card having a set up for each kind of controller and with only that particular emulator and games on it.
Not sure if this would work but sounds promising.
I'm open to any suggestions.
Thanks to all
Long time lurker, first time poster.

meleu

@gogreenman the joystick-selection tool currently has the hability to configure input joysticks based on specific emulators (libretro cores). Check the link on my signature.