VSCView VS OpenSteamController

The steam controller overlay he uses is VSC View.

I don't know about event logging. There's also steam-gyro-for-cemuhook, sc-controller and I believe VSCView which can all directly communicates with the Steam Controller. Perhaps one of those can log the inputs received.

I checked in steam controller config and VSCView (https://github.com/Nielk1/VSCView) both show the same thing; the analogue stick going right when the left trigger is pulled, regardless of profile.

That overlay come from this program right here: https://github.com/Nielk1/VSCView/releases You just need to set it up in OBS so it records the program's window and apply a chroma key.

Download Link: https://github.com/Nielk1/VSCView/releases

Only critique would be to use the VSCView overlay to display controller touches. https://github.com/Nielk1/VSCView I know trying to "show" haptics is difficult, but at least when you're displaying in-game examples you can display your controller input.

VSCView even though we haven't gotten a new release since february

The OpenSteamController project. The down side is that it’s got a todo list and no updates in 4 years

However, there's an open source project that enables the controller to function on the Switch through cable, basically flashing the controller's firmware so it functions as a generic wired USB controller compatible with the Switch. You can check a video here. I'm not sure if the bluetooth angle would be able to be rewritten so it mimics a Switch Pro Controller or a generic Xinput controller so it can be synced to the 8bitdo dongle tho.

Your understanding is completely wrong, but your conclusion is not.

Here's how I did it last time: https://github.com/greggersaurus/OpenSteamController/blob/master/LoadingFirmware.md

Googling around I saw this post addressing bricked controllers and linking to Valve's Master Firmware list, but the link is dead. Continued googling and found this (Github), telling me to hold down the right trigger all the way which will "activate the USB In-System Programming for the LPC11U37F", but it doesn't.

Did you look up schematics of the steam controller? I suspect the interface to the device controls on the deck will run through USB and be an iteration of the steam controller. https://github.com/greggersaurus/OpenSteamController/blob/master/ReverseEngineering/Luna_maiboard_V000456-00_rev3.md would suggest two pins unused/undetermined. Yes, it's an input device and would require driver/firmware changes, but as long as hardware capability is there, the rest is a software problem.

While it would be theoretically possible to rewrite the firmware (the OpenSteamController project is just this), we've run into this weird situation that, because the SC itself is discontinued, I don't think very many people that would otherwise be willing/wanting to work on such a thing wants to risk bricking their controllers.

It actually is possible to do it. What I did is flashed my steam controller with a custom firmware from the OpenSteamController project. https://github.com/greggersaurus/OpenSteamController/tree/master/Firmware