F13-F24 not functioning when NKRO enabled

[ReFil]

With CONFIG_ZMK_HID_REPORT_TYPE_NKRO=y set F13-F24 don't register on the host. Commenting out that line makes the keys work with no other changes

[Hello9999901]

What operating system? It is stated in the documentation that NKRO has different effects on different OSes. Personally, NKRO does not work at all on macOS.

[ai212983]

@Hello9999901 Can you please point me to where exactly in the docs it is stated? Codes page lists F13-F24 as not supported on Android only. System configuration page says

CONFIG_ZMK_HID_REPORT_TYPE_NKRO | Enable full N-key roll over. This may prevent the keyboard from working with some BIOS/UEFI versions.

Can't find anything about NKRO having "different effects on different OSes".

[sr2r]

thanks for logging this issue, got it fixed after setting CONFIG_ZMK_HID_REPORT_TYPE_NKRO from y to n

[ReFil]

This is the same as issue #1236, It was fixed by changing this line to use a larger HID usage

zmk/app/include/zmk/hid.h

Line 16 in 82e8569

#define ZMK_HID_KEYBOARD_NKRO_MAX_USAGE HID_USAGE_KEY_KEYPAD_EQUAL

[caksoylar]

@ReFil just to confirm, you are saying it works with HID_USAGE_KEY_KEYPAD_EQUAL, or that it works when changed to a different value? That line seems to be changed two years ago: 91ba034

[ReFil]

I had to change it to a different value, I used HID_USAGE_KEY_KEYPAD_000 because it's greater than the f13-f24 and international Lang keys I wanted to make work

[caksoylar]

Would you like to keep this open in that case, since (my understanding is) it isn't resolved in ZMK?

[ReFil]

Closing as this was solved in #2024