diff --git a/maple/maple_bus_ft6.hpp b/maple/maple_bus_ft6.hpp
new file mode 100644
index 0000000..cbdcb15
--- /dev/null
+++ b/maple/maple_bus_ft6.hpp
@@ -0,0 +1,76 @@
+namespace ft6 {
+  namespace data_transfer {
+    namespace modifier_key {
+      constexpr uint32_t s2() { return 0b1 << 7; }
+      constexpr uint32_t s2(uint32_t reg) { return (reg >> 7) & 0b1; }
+
+      constexpr uint32_t right_alt() { return 0b1 << 6; }
+      constexpr uint32_t right_alt(uint32_t reg) { return (reg >> 6) & 0b1; }
+
+      constexpr uint32_t right_shift() { return 0b1 << 5; }
+      constexpr uint32_t right_shift(uint32_t reg) { return (reg >> 5) & 0b1; }
+
+      constexpr uint32_t right_control() { return 0b1 << 4; }
+      constexpr uint32_t right_control(uint32_t reg) { return (reg >> 4) & 0b1; }
+
+      constexpr uint32_t left_gui() { return 0b1 << 3; }
+      constexpr uint32_t left_gui(uint32_t reg) { return (reg >> 3) & 0b1; }
+
+      constexpr uint32_t left_alt() { return 0b1 << 2; }
+      constexpr uint32_t left_alt(uint32_t reg) { return (reg >> 2) & 0b1; }
+
+      constexpr uint32_t left_shift() { return 0b1 << 1; }
+      constexpr uint32_t left_shift(uint32_t reg) { return (reg >> 1) & 0b1; }
+
+      constexpr uint32_t left_control() { return 0b1 << 0; }
+      constexpr uint32_t left_control(uint32_t reg) { return (reg >> 0) & 0b1; }
+
+    }
+
+    namespace led_state {
+      constexpr uint32_t shift() { return 0b1 << 7; }
+      constexpr uint32_t shift(uint32_t reg) { return (reg >> 7) & 0b1; }
+
+      constexpr uint32_t power() { return 0b1 << 6; }
+      constexpr uint32_t power(uint32_t reg) { return (reg >> 6) & 0b1; }
+
+      constexpr uint32_t kana() { return 0b1 << 5; }
+      constexpr uint32_t kana(uint32_t reg) { return (reg >> 5) & 0b1; }
+
+      constexpr uint32_t reserved0() { return 0b1 << 4; }
+      constexpr uint32_t reserved0(uint32_t reg) { return (reg >> 4) & 0b1; }
+
+      constexpr uint32_t reserved1() { return 0b1 << 3; }
+      constexpr uint32_t reserved1(uint32_t reg) { return (reg >> 3) & 0b1; }
+
+      constexpr uint32_t scroll_lock() { return 0b1 << 2; }
+      constexpr uint32_t scroll_lock(uint32_t reg) { return (reg >> 2) & 0b1; }
+
+      constexpr uint32_t caps_lock() { return 0b1 << 1; }
+      constexpr uint32_t caps_lock(uint32_t reg) { return (reg >> 1) & 0b1; }
+
+      constexpr uint32_t num_lock() { return 0b1 << 0; }
+      constexpr uint32_t num_lock(uint32_t reg) { return (reg >> 0) & 0b1; }
+
+    }
+
+    struct data_format {
+      uint8_t modifier_key;
+      uint8_t led_state;
+      uint8_t scan_code_array[6];
+    };
+    static_assert((sizeof (struct data_format)) == 8);
+  }
+
+  namespace set_condition {
+    struct data_format {
+      uint8_t led_setting;
+      uint8_t w1_reserved;
+      uint8_t w2_reserved;
+      uint8_t w3_reserved;
+    };
+    static_assert((sizeof (struct data_format)) == 4);
+  }
+
+}
+
diff --git a/regs/gen/maple_data_format.py b/regs/gen/maple_data_format.py
index 4be5c48..264a916 100644
--- a/regs/gen/maple_data_format.py
+++ b/regs/gen/maple_data_format.py
@@ -109,8 +109,10 @@ def render_format(format):
             yield f"uint8_t {field_name};"
         elif len(subfields) == 2:
             yield f"uint16_t {field_name};"
+        elif len(subfields) == 6:
+            yield f"uint8_t {field_name}[6];"
         else:
-            assert False, len(subfields)
+            assert False, (len(subfields), field_name)
 
     yield "};"
     assert format.size % 4 == 0, format.size
diff --git a/regs/maple_bus_ft6.ods b/regs/maple_bus_ft6.ods
index c4c51d5..a847423 100644
Binary files a/regs/maple_bus_ft6.ods and b/regs/maple_bus_ft6.ods differ