+ if (!code) return 0;
+
+ debug_hex(code); debug(" ");
+
+ switch (code) {
+ case 0xFF: // reset success: FF 04
+ print("reset: ");
+ _delay_ms(500);
+ code = serial_recv();
+ xprintf("%02X\n", code);
+ if (code == 0x04) {
+ // LED status
+ led_set(host_keyboard_leds());
+ }
+ return 0;
+ case 0xFE: // layout: FE <layout>
+ print("layout: ");
+ _delay_ms(500);
+ xprintf("%02X\n", serial_recv());
+ return 0;
+ case 0x7E: // reset fail: 7E 01
+ print("reset fail: ");
+ _delay_ms(500);
+ xprintf("%02X\n", serial_recv());
+ return 0;
+ case 0x7F:
+ // all keys up
+ for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
+ return 0;