qmk_firmware/keyboards/geistmaschine/geist/geist.c

// Copyright 2022 QMK
// SPDX-License-Identifier: GPL-2.0-or-later

#include "quantum.h"

// This will be overridden by encoder map in all default keymaps, but serves as a catch-all for user keymaps that may omit the map.
#if defined (ENCODER_ENABLE) && !defined (ENCODER_MAP_ENABLE)
bool encoder_update_kb(uint8_t index, bool clockwise) {
    if (!encoder_update_user(index, clockwise)) {
      return false; /* Don't process further events if user function exists and returns false */
    }
    if (index == 0) { /* First encoder */
        if (clockwise) {
            tap_code_delay(KC_VOLU, 10);
        } else {
            tap_code_delay(KC_VOLD, 10);
        }
    }
    return true;
}
#endif