qmk_firmware/keyboards/ploopyco/trackball_mini/config.h

/* Copyright 2021 Colin Lam (Ploopy Corporation)
 * Copyright 2020 Christopher Courtney, aka Drashna Jael're  (@drashna) <drashna@live.com>
 * Copyright 2019 Sunjun Kim
 * Copyright 2019 Hiroyuki Okada
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

/* disable action features */
//#define NO_ACTION_LAYER
//#define NO_ACTION_TAPPING
//#define NO_ACTION_ONESHOT

// If board has a debug LED, you can enable it by defining this
// #define DEBUG_LED_PIN F7

#define ADNS5050_SCLK_PIN         B7
#define ADNS5050_SDIO_PIN         C6
#define ADNS5050_CS_PIN           B4

#define POINTING_DEVICE_ROTATION_270

/* Custom encoder needs to specify just how many encoders we have */
#define NUM_ENCODERS 1