Vial support for HE keyboards

[gibs2193]

Issue Description

I managed to patch 2025q3 branch for use with Vial. Everything I tested seems to work fine for my P1 HE in Vial, setting keys/RGB/locking&unlocking. Only tested a few of other random settings and they seem to be working.
The mod should apply on all HE keyboards, I think. There's also a Vial keymap for my P1 HE, vial.json file needed a bit of tweaking for encoder rotation to show up in Vial interface.
I noticed there's already a Vial fork that's pretty old with no recent updates. Not sure how to go about it, figured a new qmk_firmware branch makes more sense? Something like 2025q3_vial?

Atm I have it here: https://github.com/gibs2193/qmk_firmware/tree/2025q3_vial

RGB direct control for per-key RGB also works fine, tested with this script: https://gist.github.com/xyzz/c91ae462197d4ef30d034bb6ff4c945e

[PeterMortensen]

The P1 HE is a wired-only keyboard. Do you expect it to be different for a wireless HE keyboard, e.g., K10 HE?

[gibs2193]

P1 HE is BT/wifi, not wired-only. But afaik Vial doesn't support operation via BT/wifi. Works fine in wired mode.
With the Vial mod keyboard works fine on wifi, as a keyboard without Vial access, but cannot connect it on bluetooth. Didn't try to find out what the issue is, if the Vial patch affected bluetooth operation somehow, I didn't really care as I use it only wired.

[gibs2193]

I was wrong, bluetooth also works. I forgot to add BT_HST1 on the Vial keymap, KC_1 was flashing but wasn't mapped to anything (on 2nd layer, with +Fn) so wouldn't start pairing. So both Bluetooth/Wifi modes work normally, Vial app access works in wired mode (like every other Vial compatible keyboard as far as I know). So nothing is missing really, it's all there.

[DarkRoku12]

It does also support changing the HE activation settings?

[gibs2193]

VIA/Vial don't support analog functions, and Vial patch blocks Keychron app access.
But it does work for me with a custom HID file for analog functions, and a python script.
These are the HID files:
https://github.com/gibs2193/qmk_firmware/blob/2025q3_10bit_vial/keyboards/keychron/common/analog_hid.c
https://github.com/gibs2193/qmk_firmware/blob/2025q3_10bit_vial/keyboards/keychron/common/analog_hid.h
This is the modified keychron_raw_hid.c file for integration with it:
https://github.com/gibs2193/qmk_firmware/blob/2025q3_10bit_vial/keyboards/keychron/common/keychron_raw_hid.c
And this is the python script I use to set the various functions:
https://github.com/gibs2193/qmk_firmware/blob/2025q3_10bit_vial/keyboards/lemokey/p1_he/lmk.py
But analog_hid.c and python script are adapted for my use, I moved to 10bit values for key travel (1024 steps instead of stock 40). So you'd have to adapt them for stock 40 steps key travel. I might do it at some point when I find the time.
It's possible some of the functions still work on stock 40 step key travel, start-calib etc. Didn't try it tho.