[ENHANCEMENT] Add support for Joy-Con 2 using Joy-Con 2 Charging Grip, and Switch 2 Pro Controller

[Yoshiman5551]

You actually can't connect Joy-Con 2 to PC using Bluetooth (I think) but I think you can using the charging grip. I'd like support for that.

[d3xMachina]

There is currently no reverse engineering for the switch 2 controllers and I don't have them so it will have to wait for now.

[ConnorS-P]

I have a couple on order, and I was going to poke around sometime soon (crossing my fingers that the communication protocols might be similar/the same) but no promises yet.

[ConnorS-P]

Looks like someone has gotten started: https://www.reddit.com/r/NintendoSwitch/comments/1l5nyfj/how_to_use_switch_pro_controller_2_on_ur_windows/

[ConnorS-P]

Hmmmm. Those byte arrays do not look particularly familiar to me, but D3X may have more insight:
https://github.com/HandHeldLegend/handheldlegend.github.io/blob/a0c5c293ce03d313752a48b398f0ead0e3024d96/procon2tool/index.html#L294

[d3xMachina]

Hmmmm. Those byte arrays do not look particularly familiar to me, but D3X may have more insight: https://github.com/HandHeldLegend/handheldlegend.github.io/blob/a0c5c293ce03d313752a48b398f0ead0e3024d96/procon2tool/index.html#L294

They don't "talk" HID but use an USB endpoint. Maybe the driver for those controllers isn't HID compatible ? Also I think the Switch 2 controllers use a different protocol since those don't work on the Switch 1 from what I read online. You can also see how they do the SPI read command here, it's quite different : aside from the layout, the subcommand is 0x7e but for Switch 1 it's 0x10.

Edit ; I just reread the reddit link, it mentions a "Nintendo If_Hid" device, so it supports HID. I wonder if it shows up before running the tool and which report mode is set with it (I would guess it's the simple HID mode).

[ConnorS-P]

Someone else that seems to have made some progress: https://github.com/TiernanDeFranco/JoyConPlusPlus

[d3xMachina]

I just came across projects that implements switch 2 controllers :

• https://github.com/TheFrano/joycon2cpp
• Switch 2 Controller Support libsdl-org/SDL#13327
• https://github.com/sodiumts/userspace-switch2
• https://github.com/Nadeflore/switch2-controllers

Some research and documentations : https://github.com/ndeadly/switch2_controller_research

[copiliot-cmd]

@Yoshiman5551 I seem to be able to be able to connect to a pc just via bluetooth but disconnects after 5 or so seconds. Unless i use a tool like Joy2Win

[StandieNL]

@d3xMachina

There is currently no reverse engineering for the switch 2 controllers and I don't have them so it will have to wait for now.

Hello, I would be happy to donate you the cost of the new Joy-Cons if it would increase the chances of Joy-Con 2 support in your version of BetterJoy. Please let me know if you're open to that. I could do it via PayPal, any donation page or a gift card for Amazon or another store.

[d3xMachina]

@StandieNL Thanks for the suggestion but I will have to decline. Adding support for joycons is pretty time consuming (it's a different protocol, the bluetooth connection is not standardized and I don't have the use for joycons honestly. I'm not against anyone making a PR though 😉. I suggest you take a look at JoyCon2 Connector. It works with different switch 2 controllers over bluetooth and also use ViGEm to make virtual controllers. It has support for joined joycons and gyroscope.