qmk_firmware/keyboards/synthlabs/solo/solo.c

// Copyright 2022 Aaron Hong (@hongaaronc)
// SPDX-License-Identifier: GPL-2.0-or-later

#include "quantum.h"

#if !defined(VIA_ENABLE) && !defined(JOYSTICK_ENABLE) && defined(ENCODER_ENABLE)
bool encoder_update_kb(uint8_t index, bool clockwise) {
    if (!encoder_update_user(index, clockwise)) { return false; }
    if (index == 0) {
        if (clockwise) {
            tap_code_delay(KC_VOLU, 10);
        } else {
            tap_code_delay(KC_VOLD, 10);
        }
    }
    return true;
}
#endif