hidapi VS qmk_firmware

On the computer, write a program (the "host" or "server") that talks over the raw HID protocol. It is open ended how you do this, but IME both the Python pyhidapi and C hidapi were simple enough to get something started. The trickiest part might be getting the program to run with the permissions to talk the raw HID protocol (at least on Linux, there was some udev rule to set up). Read the documentation for these libraries for details about how to get set up.

now I'm trying to figure out what to do with the next step for building my own host. Am I supposed to put this test file in my qmk code? or run it on my computer as it's own separate program? https://github.com/libusb/hidapi/blob/master/hidtest/test.c

HIDAPI

I did star https://github.com/libusb/hidapi too, as well as this GitHub.

I used ffigen to get the bindings from hidapi.h and cleaned up quite some of the resulting output to make it Dart compatible. Quite some typedef and some minor stuff.

I figured out the problem with JoyconLib! The hidapi.dll file was broken so I replaced it with a new file from https://github.com/libusb/hidapi/releases and not it's working.

https://github.com/libusb/hidapi#prerequisites

Install the HID API, instructions here: https://github.com/libusb/hidapi

Inspired by https://askubuntu.com/questions/699138/logitech-k380-bluetooth-keyboard-make-function-keys-default and https://github.com/libusb/hidapi, it's almost re-implementation of hidapi actually, with dart:ffi calling the syscall directly.

I only use keyboards running QMK or ZMK, so:

My Caps Lock key is a Control/Escape key (when tapped it behave like a Escape, when hold it's Control), and my left Control is a one shot layer switch key [1], which means I tap LCtrl once, and then press Caps Lock + 5 to get Ctrl+F5. Doable with single hand and more ergonomic as I have an unusually small hand.

[1] https://github.com/qmk/qmk_firmware/blob/master/docs/one_sho...

I agree that reduced finger movement is a crucial step in achieving typing efficiency. This is nicely solved by mod tap modifiers in QMK/ZMK[1] where key acts as a char when tapped and as a layer while pressed.

[1]: https://github.com/qmk/qmk_firmware/blob/master/docs/mod_tap...

Separate wireless controller, see the glue code at [0]

[0]: https://github.com/qmk/qmk_firmware/compare/master...nuphy-s...

If you have a keyboard that runs QMK firmware[0] with the VIA[1] feature enabled[2], then there is a convenient testing app available from the same place you customize your keys [3].

[0] https://qmk.fm/

I made a layout that I'm happy with. Spanish is my native language, so it has characters like the accents and 'ñ', but it's meant to be used for programming as well. Visual Studio uses a lot of Ctrl and Ctrl + Shift shortcuts, so I left them in the same place as the default Corne layout so I can press them both with my pinkie finger. Perhaps some of the ideas are useful to you.

Also, it would be possible to do this for the RP2040. However, it needs some work to get working. but for example: https://github.com/qmk/qmk_firmware/pull/20999

Ok, it's an ST7735, not too different from the ST7789. You should be able to get running by looking at their files in the QMK repo and going from there. You should also check their resources page.