sun_usb: LED update for hotplug keyboard into converter

converter/sun_usb/matrix.c

@@ -101,17 +101,26 @@ uint8_t matrix_scan(void)
     debug_hex(code); debug(" ");
 
     switch (code) {
-        case 0xFF:  // reset success
-        case 0xFE:  // layout
-        case 0x7E:  // reset fail
-            if (code == 0xFF) print("reset: 0xFF ");
-            if (code == 0x7E) print("reset fail: 0x7E ");
-            if (code == 0xFE) print("layout: 0xFE ");
-            // response byte
+        case 0xFF:  // reset success: FF 04
+            print("reset: ");
             _delay_ms(500);
-            if (code = serial_recv()) print_hex8(code);
-            print("\n");
-            // FALL THROUGH
+            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;