Added MacOS Support for BigKnob (#19693)

keyboards/leafcutterlabs/bigknob/keymaps/macos/keymap.c

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+/* Copyright 2021 Craig Gardner
+  *
+  * 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/>.
+  */
+
+ /*
+    Modifications 1/2023 by Kassandra Karan for MacOS support
+    * Changed Volume up and down to mac scan codes
+    * MacOS doesnt support Stop, so changed default to spotlight search
+ */
+
+#include QMK_KEYBOARD_H
+
+enum layers { _MAIN };
+
+bool encoder_update_user(uint8_t index, bool clockwise) {
+  if (index == 0) {
+    if (clockwise) {
+      tap_code(KC_KB_VOLUME_UP); // MacOS Volume Up
+    } else {
+      tap_code(KC_KB_VOLUME_DOWN); // MacOS Volume Down
+    }
+  }
+    return false;
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = { //button closest to USB is first
+  [_MAIN] = LAYOUT(
+     KC_MUTE, KC_MEDIA_PREV_TRACK, KC_MEDIA_PLAY_PAUSE, G(KC_SPC), KC_MNXT
+  )
+};

keyboards/leafcutterlabs/bigknob/keymaps/macos/readme.md

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+# MacOS BigKnob Layout
+
+This is a modification to the BigKnob to support MacOS. The QMK configurator does not 
+support rotary encoders, so this changes the key codes to the Apple volume control
+codes. This also changes the 3rd key from stop, which MacOS does not support, to 
+spotlight search.