[Keymap] add chriskopher keymap for usb-usb converter (#8856)

keyboards/converter/usb_usb/keymaps/chriskopher/config.h

@@ -0,0 +1,25 @@
+/* Copyright 2020 Christopher Ko <chriskopher@gmail.com>
+ *
+ * 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
+
+#define TAPPING_TERM 200  // Delay for tap modifiers until it is considered a hold
+
+#define IGNORE_MOD_TAP_INTERRUPT          // Enable ignore mod tap interrupt: https://docs.qmk.fm/#/tap_hold?id=ignore-mod-tap-interrupt
+#define IGNORE_MOD_TAP_INTERRUPT_PER_KEY  // Allows configuration of ignore mod tap interrupt per key in keymap.c
+
+#define COMBO_COUNT 2  // Number of defined combos
+#define COMBO_TERM 20  // Delay for combo keys to be chained together