[Issue]: Nintendo PowerA controllers mappings are messed up in Android

[kkuhle]

Describe the bug

Nintendo Switch PowerA controllers have some duplicate buttons, or buttons map to A button such as Y and R and thumbstick clicks are messed up.

It seemed similar to #842, but I don't know if powerA Nintendo Switch controller is the same as "Nintendo Pro" controller.

Steps to reproduce

1. Use Moonlight client on Android
2. Plug in Nintendo Switch PowerA controller into client
3. Observe that button mappings are completely messed up and cannot be mapped properly

Affected games

All

Other Moonlight clients

PC

Moonlight adjusted settings

Yes

Moonlight adjusted settings (please complete the following information)

I've tried messing with gamepad settings with no change, but the default configuration reproduces the behavior

Moonlight default settings

Yes

Gamepad-related connection issue

No

Gamepad-related input issue

Yes

Gamepad-related streaming issue

Yes

Android version

Android 11 - 13

Device model

Nvidia Shield and Pixel 7

Server PC OS version

Using Sunlight, but this seems like a Moonlight issue

Server PC GeForce Experience version

n/a

Server PC Nvidia GPU driver version

n/a

Server PC antivirus and firewall software

n/a

Screenshots

No response

Relevant log output

No response

Additional context

I use Sunshine with Moonlight on Nvidia Sheild (Android TV). If I use my Nintendo Switch PowerA controllers, the mapping issue is present (works fine in Steam or direct on PC). I sideloaded the apk in this comment and this comment thinking these controllers should be similar to Nintendo Pro controllers and this would help, but the behavior is still wonky.

These are what I get in CEMU when I try to remap buttons to what they should be:

• Y -> a
• R -> a
• ZL -> leftshoulder
• ZR -> rightshoulder
• + -> Y-Trigger+
• - -> X-Trigger+
• Left Axis click -> back
• Right Axis click -> start

Here is the output from the suggested gamepad tester app. This is from my Android 13 device. The behavior is the same on my Sheild which is running Android 11.

Gamepad tester on Sheild:

Please let me know if a client can be provided as it was in #842.